./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-token_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-token_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba8e1e3b81a4ef74bb5d2812e833b1076e8dddee 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.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-token_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba8e1e3b81a4ef74bb5d2812e833b1076e8dddee ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_prenex_41 (bvadd v_prenex_3 (_ bv4 32)) v_prenex_4) --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:54:16,431 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:54:16,432 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:54:16,439 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:54:16,439 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:54:16,440 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:54:16,441 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:54:16,442 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:54:16,443 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:54:16,443 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:54:16,444 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:54:16,444 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:54:16,445 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:54:16,445 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:54:16,446 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:54:16,447 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:54:16,447 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:54:16,449 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:54:16,450 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:54:16,451 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:54:16,451 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:54:16,452 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:54:16,454 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:54:16,454 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:54:16,454 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:54:16,455 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:54:16,455 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:54:16,456 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:54:16,457 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:54:16,457 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:54:16,458 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:54:16,458 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:54:16,458 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:54:16,458 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:54:16,459 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:54:16,459 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:54:16,460 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-23 13:54:16,469 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:54:16,469 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:54:16,470 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:54:16,470 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:54:16,470 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:54:16,471 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:54:16,471 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:54:16,471 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:54:16,471 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:54:16,471 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 13:54:16,471 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:54:16,471 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:54:16,471 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:54:16,472 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-23 13:54:16,472 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-23 13:54:16,472 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-23 13:54:16,472 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:54:16,472 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:54:16,472 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:54:16,472 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:54:16,472 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:54:16,473 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:54:16,473 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:54:16,473 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:54:16,473 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:54:16,473 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:54:16,473 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:54:16,473 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:54:16,473 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba8e1e3b81a4ef74bb5d2812e833b1076e8dddee [2018-11-23 13:54:16,495 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:54:16,503 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:54:16,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:54:16,506 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:54:16,506 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:54:16,507 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/sll-token_true-unreach-call_true-valid-memsafety.i [2018-11-23 13:54:16,541 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/data/09583fd18/fe8b03b1994749ada64a2302dca247a5/FLAGbe030b9fe [2018-11-23 13:54:16,988 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:54:16,988 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/sv-benchmarks/c/forester-heap/sll-token_true-unreach-call_true-valid-memsafety.i [2018-11-23 13:54:16,994 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/data/09583fd18/fe8b03b1994749ada64a2302dca247a5/FLAGbe030b9fe [2018-11-23 13:54:17,003 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/data/09583fd18/fe8b03b1994749ada64a2302dca247a5 [2018-11-23 13:54:17,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:54:17,006 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-23 13:54:17,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:54:17,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:54:17,010 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:54:17,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:54:17" (1/1) ... [2018-11-23 13:54:17,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa062a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:17, skipping insertion in model container [2018-11-23 13:54:17,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:54:17" (1/1) ... [2018-11-23 13:54:17,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:54:17,049 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:54:17,236 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:54:17,243 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:54:17,312 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:54:17,336 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:54:17,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:17 WrapperNode [2018-11-23 13:54:17,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:54:17,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:54:17,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:54:17,337 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:54:17,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:17" (1/1) ... [2018-11-23 13:54:17,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:17" (1/1) ... [2018-11-23 13:54:17,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:17" (1/1) ... [2018-11-23 13:54:17,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:17" (1/1) ... [2018-11-23 13:54:17,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:17" (1/1) ... [2018-11-23 13:54:17,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:17" (1/1) ... [2018-11-23 13:54:17,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:17" (1/1) ... [2018-11-23 13:54:17,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:54:17,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:54:17,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:54:17,379 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:54:17,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:54:17,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:54:17,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:54:17,412 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:54:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-23 13:54:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-23 13:54:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-23 13:54:17,412 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-23 13:54:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-23 13:54:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-23 13:54:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-23 13:54:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-23 13:54:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-23 13:54:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-23 13:54:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-23 13:54:17,413 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-23 13:54:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-23 13:54:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-23 13:54:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-23 13:54:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-23 13:54:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-23 13:54:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-23 13:54:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-23 13:54:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-23 13:54:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-23 13:54:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-23 13:54:17,414 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-23 13:54:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-23 13:54:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-23 13:54:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-23 13:54:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-23 13:54:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-23 13:54:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-23 13:54:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-23 13:54:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-23 13:54:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-23 13:54:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-23 13:54:17,415 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-23 13:54:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-23 13:54:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-23 13:54:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-23 13:54:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-23 13:54:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-23 13:54:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-23 13:54:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-23 13:54:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-23 13:54:17,416 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-23 13:54:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-23 13:54:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-23 13:54:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-23 13:54:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-23 13:54:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-23 13:54:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-23 13:54:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-23 13:54:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-23 13:54:17,417 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-23 13:54:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-23 13:54:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-23 13:54:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-23 13:54:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-23 13:54:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-23 13:54:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-23 13:54:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-23 13:54:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-23 13:54:17,418 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-23 13:54:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-23 13:54:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-23 13:54:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 13:54:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-23 13:54:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-23 13:54:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-23 13:54:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-23 13:54:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-23 13:54:17,419 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-23 13:54:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-23 13:54:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-23 13:54:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-23 13:54:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-23 13:54:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-23 13:54:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-23 13:54:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-23 13:54:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-23 13:54:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-23 13:54:17,420 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-23 13:54:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-23 13:54:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-23 13:54:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-23 13:54:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-23 13:54:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-23 13:54:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-23 13:54:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-23 13:54:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-23 13:54:17,421 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-23 13:54:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-23 13:54:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-23 13:54:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-23 13:54:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-23 13:54:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-23 13:54:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-23 13:54:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-23 13:54:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-23 13:54:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-23 13:54:17,422 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-23 13:54:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-23 13:54:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-23 13:54:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-23 13:54:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-23 13:54:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-23 13:54:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-23 13:54:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:54:17,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 13:54:17,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 13:54:17,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 13:54:17,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 13:54:17,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 13:54:17,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 13:54:17,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:54:17,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:54:17,769 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:54:17,769 INFO L280 CfgBuilder]: Removed 15 assue(true) statements. [2018-11-23 13:54:17,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:17 BoogieIcfgContainer [2018-11-23 13:54:17,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:54:17,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:54:17,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:54:17,773 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:54:17,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:54:17" (1/3) ... [2018-11-23 13:54:17,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fb0a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:54:17, skipping insertion in model container [2018-11-23 13:54:17,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:17" (2/3) ... [2018-11-23 13:54:17,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fb0a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:54:17, skipping insertion in model container [2018-11-23 13:54:17,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:17" (3/3) ... [2018-11-23 13:54:17,775 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-token_true-unreach-call_true-valid-memsafety.i [2018-11-23 13:54:17,783 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:54:17,789 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 45 error locations. [2018-11-23 13:54:17,801 INFO L257 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2018-11-23 13:54:17,821 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:54:17,822 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:54:17,822 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-23 13:54:17,822 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:54:17,822 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:54:17,822 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:54:17,822 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:54:17,822 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:54:17,823 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:54:17,836 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2018-11-23 13:54:17,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 13:54:17,843 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:17,844 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:17,846 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:17,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:17,850 INFO L82 PathProgramCache]: Analyzing trace with hash -709859590, now seen corresponding path program 1 times [2018-11-23 13:54:17,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:17,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:17,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:17,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:17,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:17,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:17,963 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:17,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:54:17,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:54:17,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:54:17,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:54:17,974 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 3 states. [2018-11-23 13:54:18,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:18,105 INFO L93 Difference]: Finished difference Result 118 states and 121 transitions. [2018-11-23 13:54:18,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:54:18,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-23 13:54:18,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:18,112 INFO L225 Difference]: With dead ends: 118 [2018-11-23 13:54:18,113 INFO L226 Difference]: Without dead ends: 115 [2018-11-23 13:54:18,114 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:54:18,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-11-23 13:54:18,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 99. [2018-11-23 13:54:18,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-11-23 13:54:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 101 transitions. [2018-11-23 13:54:18,142 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 101 transitions. Word has length 7 [2018-11-23 13:54:18,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:18,142 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 101 transitions. [2018-11-23 13:54:18,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:54:18,142 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 101 transitions. [2018-11-23 13:54:18,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 13:54:18,142 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:18,142 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:18,143 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:18,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:18,143 INFO L82 PathProgramCache]: Analyzing trace with hash -709859589, now seen corresponding path program 1 times [2018-11-23 13:54:18,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:18,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:18,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:18,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:18,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:18,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:18,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:54:18,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:54:18,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:54:18,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:54:18,178 INFO L87 Difference]: Start difference. First operand 99 states and 101 transitions. Second operand 3 states. [2018-11-23 13:54:18,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:18,301 INFO L93 Difference]: Finished difference Result 119 states and 121 transitions. [2018-11-23 13:54:18,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:54:18,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-23 13:54:18,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:18,303 INFO L225 Difference]: With dead ends: 119 [2018-11-23 13:54:18,303 INFO L226 Difference]: Without dead ends: 119 [2018-11-23 13:54:18,303 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:54:18,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-11-23 13:54:18,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 97. [2018-11-23 13:54:18,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-11-23 13:54:18,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 99 transitions. [2018-11-23 13:54:18,309 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 99 transitions. Word has length 7 [2018-11-23 13:54:18,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:18,310 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 99 transitions. [2018-11-23 13:54:18,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:54:18,310 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 99 transitions. [2018-11-23 13:54:18,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 13:54:18,310 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:18,310 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:18,311 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:18,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:18,311 INFO L82 PathProgramCache]: Analyzing trace with hash -270604333, now seen corresponding path program 1 times [2018-11-23 13:54:18,311 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:18,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:18,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:18,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:18,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:18,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:18,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:18,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:54:18,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 13:54:18,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 13:54:18,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:54:18,360 INFO L87 Difference]: Start difference. First operand 97 states and 99 transitions. Second operand 4 states. [2018-11-23 13:54:18,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:18,492 INFO L93 Difference]: Finished difference Result 99 states and 102 transitions. [2018-11-23 13:54:18,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 13:54:18,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-23 13:54:18,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:18,493 INFO L225 Difference]: With dead ends: 99 [2018-11-23 13:54:18,493 INFO L226 Difference]: Without dead ends: 99 [2018-11-23 13:54:18,493 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:54:18,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-11-23 13:54:18,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 86. [2018-11-23 13:54:18,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-11-23 13:54:18,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 90 transitions. [2018-11-23 13:54:18,499 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 90 transitions. Word has length 12 [2018-11-23 13:54:18,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:18,499 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 90 transitions. [2018-11-23 13:54:18,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 13:54:18,500 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 90 transitions. [2018-11-23 13:54:18,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 13:54:18,500 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:18,500 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:18,501 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:18,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:18,501 INFO L82 PathProgramCache]: Analyzing trace with hash -270604332, now seen corresponding path program 1 times [2018-11-23 13:54:18,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:18,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:18,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:18,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:18,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:18,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:18,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:54:18,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 13:54:18,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 13:54:18,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:54:18,536 INFO L87 Difference]: Start difference. First operand 86 states and 90 transitions. Second operand 4 states. [2018-11-23 13:54:18,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:18,666 INFO L93 Difference]: Finished difference Result 148 states and 152 transitions. [2018-11-23 13:54:18,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 13:54:18,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-23 13:54:18,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:18,667 INFO L225 Difference]: With dead ends: 148 [2018-11-23 13:54:18,667 INFO L226 Difference]: Without dead ends: 148 [2018-11-23 13:54:18,667 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:54:18,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-11-23 13:54:18,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 114. [2018-11-23 13:54:18,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-11-23 13:54:18,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 121 transitions. [2018-11-23 13:54:18,672 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 121 transitions. Word has length 12 [2018-11-23 13:54:18,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:18,672 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 121 transitions. [2018-11-23 13:54:18,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 13:54:18,672 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 121 transitions. [2018-11-23 13:54:18,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 13:54:18,673 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:18,673 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:18,673 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:18,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:18,674 INFO L82 PathProgramCache]: Analyzing trace with hash 80906438, now seen corresponding path program 1 times [2018-11-23 13:54:18,674 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:18,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:18,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:18,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:18,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:18,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:18,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:18,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:54:18,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:54:18,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:54:18,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:54:18,717 INFO L87 Difference]: Start difference. First operand 114 states and 121 transitions. Second operand 6 states. [2018-11-23 13:54:18,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:18,890 INFO L93 Difference]: Finished difference Result 167 states and 177 transitions. [2018-11-23 13:54:18,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:54:18,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-23 13:54:18,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:18,891 INFO L225 Difference]: With dead ends: 167 [2018-11-23 13:54:18,891 INFO L226 Difference]: Without dead ends: 167 [2018-11-23 13:54:18,892 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-23 13:54:18,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-11-23 13:54:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 113. [2018-11-23 13:54:18,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-11-23 13:54:18,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 120 transitions. [2018-11-23 13:54:18,897 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 120 transitions. Word has length 15 [2018-11-23 13:54:18,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:18,897 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 120 transitions. [2018-11-23 13:54:18,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:54:18,897 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 120 transitions. [2018-11-23 13:54:18,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 13:54:18,898 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:18,898 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:18,898 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:18,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:18,898 INFO L82 PathProgramCache]: Analyzing trace with hash 80906439, now seen corresponding path program 1 times [2018-11-23 13:54:18,899 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:18,899 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:18,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:18,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:18,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:18,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:18,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:18,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:54:18,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:54:18,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:54:18,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:54:18,955 INFO L87 Difference]: Start difference. First operand 113 states and 120 transitions. Second operand 6 states. [2018-11-23 13:54:19,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:19,156 INFO L93 Difference]: Finished difference Result 186 states and 198 transitions. [2018-11-23 13:54:19,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 13:54:19,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-23 13:54:19,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:19,157 INFO L225 Difference]: With dead ends: 186 [2018-11-23 13:54:19,157 INFO L226 Difference]: Without dead ends: 186 [2018-11-23 13:54:19,157 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:54:19,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-11-23 13:54:19,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 99. [2018-11-23 13:54:19,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-11-23 13:54:19,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 105 transitions. [2018-11-23 13:54:19,162 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 105 transitions. Word has length 15 [2018-11-23 13:54:19,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:19,163 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 105 transitions. [2018-11-23 13:54:19,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:54:19,163 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 105 transitions. [2018-11-23 13:54:19,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 13:54:19,163 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:19,164 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:19,164 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:19,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:19,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1816453097, now seen corresponding path program 1 times [2018-11-23 13:54:19,165 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:19,165 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:19,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:19,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:19,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:19,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:19,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:54:19,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:54:19,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:54:19,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:54:19,202 INFO L87 Difference]: Start difference. First operand 99 states and 105 transitions. Second operand 5 states. [2018-11-23 13:54:19,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:19,283 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2018-11-23 13:54:19,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:54:19,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-23 13:54:19,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:19,284 INFO L225 Difference]: With dead ends: 101 [2018-11-23 13:54:19,284 INFO L226 Difference]: Without dead ends: 101 [2018-11-23 13:54:19,284 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 13:54:19,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-11-23 13:54:19,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2018-11-23 13:54:19,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-11-23 13:54:19,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 104 transitions. [2018-11-23 13:54:19,288 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 104 transitions. Word has length 16 [2018-11-23 13:54:19,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:19,289 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 104 transitions. [2018-11-23 13:54:19,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:54:19,289 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 104 transitions. [2018-11-23 13:54:19,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 13:54:19,289 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:19,290 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:19,290 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:19,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:19,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1816453096, now seen corresponding path program 1 times [2018-11-23 13:54:19,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:19,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:19,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:19,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:19,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:19,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:19,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:19,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:54:19,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:54:19,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:54:19,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:54:19,376 INFO L87 Difference]: Start difference. First operand 98 states and 104 transitions. Second operand 5 states. [2018-11-23 13:54:19,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:19,484 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2018-11-23 13:54:19,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:54:19,484 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-23 13:54:19,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:19,485 INFO L225 Difference]: With dead ends: 97 [2018-11-23 13:54:19,485 INFO L226 Difference]: Without dead ends: 97 [2018-11-23 13:54:19,485 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 13:54:19,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-11-23 13:54:19,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-11-23 13:54:19,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-11-23 13:54:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 103 transitions. [2018-11-23 13:54:19,488 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 103 transitions. Word has length 16 [2018-11-23 13:54:19,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:19,493 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 103 transitions. [2018-11-23 13:54:19,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:54:19,493 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 103 transitions. [2018-11-23 13:54:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 13:54:19,493 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:19,493 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:19,494 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:19,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:19,494 INFO L82 PathProgramCache]: Analyzing trace with hash -9574526, now seen corresponding path program 1 times [2018-11-23 13:54:19,494 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:19,494 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:19,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:19,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:19,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:19,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:19,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:19,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 13:54:19,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 13:54:19,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 13:54:19,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:54:19,622 INFO L87 Difference]: Start difference. First operand 97 states and 103 transitions. Second operand 11 states. [2018-11-23 13:54:19,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:19,889 INFO L93 Difference]: Finished difference Result 170 states and 177 transitions. [2018-11-23 13:54:19,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 13:54:19,889 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2018-11-23 13:54:19,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:19,890 INFO L225 Difference]: With dead ends: 170 [2018-11-23 13:54:19,890 INFO L226 Difference]: Without dead ends: 170 [2018-11-23 13:54:19,890 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2018-11-23 13:54:19,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2018-11-23 13:54:19,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 115. [2018-11-23 13:54:19,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-23 13:54:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 124 transitions. [2018-11-23 13:54:19,893 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 124 transitions. Word has length 27 [2018-11-23 13:54:19,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:19,893 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 124 transitions. [2018-11-23 13:54:19,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 13:54:19,893 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 124 transitions. [2018-11-23 13:54:19,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 13:54:19,894 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:19,894 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:19,894 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:19,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:19,895 INFO L82 PathProgramCache]: Analyzing trace with hash -9574525, now seen corresponding path program 1 times [2018-11-23 13:54:19,895 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:19,895 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:19,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:19,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:19,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:20,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:20,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:20,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 13:54:20,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 13:54:20,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 13:54:20,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:54:20,014 INFO L87 Difference]: Start difference. First operand 115 states and 124 transitions. Second operand 11 states. [2018-11-23 13:54:20,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:20,386 INFO L93 Difference]: Finished difference Result 197 states and 203 transitions. [2018-11-23 13:54:20,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 13:54:20,387 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2018-11-23 13:54:20,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:20,388 INFO L225 Difference]: With dead ends: 197 [2018-11-23 13:54:20,388 INFO L226 Difference]: Without dead ends: 197 [2018-11-23 13:54:20,389 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-23 13:54:20,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-11-23 13:54:20,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 115. [2018-11-23 13:54:20,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-23 13:54:20,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 123 transitions. [2018-11-23 13:54:20,392 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 123 transitions. Word has length 27 [2018-11-23 13:54:20,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:20,392 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 123 transitions. [2018-11-23 13:54:20,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 13:54:20,392 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 123 transitions. [2018-11-23 13:54:20,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 13:54:20,393 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:20,393 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:20,393 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:20,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:20,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1025846402, now seen corresponding path program 1 times [2018-11-23 13:54:20,394 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:20,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:20,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:20,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:20,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:20,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:20,515 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:20,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:20,570 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:20,615 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:20,616 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:20,620 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:54:20,621 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:20,637 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:20,637 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-11-23 13:54:20,661 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:20,664 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:20,664 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:20,666 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:20,673 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:20,673 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2018-11-23 13:54:20,705 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2018-11-23 13:54:20,708 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-11-23 13:54:20,708 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:20,711 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:20,715 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:20,715 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:54, output treesize:23 [2018-11-23 13:54:20,742 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 13:54:20,745 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-11-23 13:54:20,746 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:20,749 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:20,753 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:20,753 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:15 [2018-11-23 13:54:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:20,807 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:20,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2018-11-23 13:54:20,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-23 13:54:20,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-23 13:54:20,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2018-11-23 13:54:20,809 INFO L87 Difference]: Start difference. First operand 115 states and 123 transitions. Second operand 21 states. [2018-11-23 13:54:21,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:21,403 INFO L93 Difference]: Finished difference Result 185 states and 193 transitions. [2018-11-23 13:54:21,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-23 13:54:21,403 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 27 [2018-11-23 13:54:21,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:21,404 INFO L225 Difference]: With dead ends: 185 [2018-11-23 13:54:21,404 INFO L226 Difference]: Without dead ends: 185 [2018-11-23 13:54:21,404 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=251, Invalid=805, Unknown=0, NotChecked=0, Total=1056 [2018-11-23 13:54:21,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-11-23 13:54:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 121. [2018-11-23 13:54:21,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-11-23 13:54:21,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 130 transitions. [2018-11-23 13:54:21,408 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 130 transitions. Word has length 27 [2018-11-23 13:54:21,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:21,408 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 130 transitions. [2018-11-23 13:54:21,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-23 13:54:21,408 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 130 transitions. [2018-11-23 13:54:21,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 13:54:21,409 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:21,409 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:21,409 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:21,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:21,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1025846403, now seen corresponding path program 1 times [2018-11-23 13:54:21,409 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:21,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:21,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:21,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:21,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:21,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:21,541 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:21,542 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:21,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:21,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:21,601 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:21,608 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:21,609 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:21,609 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,616 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:54:21,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,621 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,621 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-11-23 13:54:21,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:21,631 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:21,631 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,633 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,641 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:21,644 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:21,644 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,646 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,652 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,652 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:38, output treesize:31 [2018-11-23 13:54:21,678 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 76 [2018-11-23 13:54:21,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-11-23 13:54:21,680 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,685 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,694 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 40 [2018-11-23 13:54:21,697 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-11-23 13:54:21,697 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,700 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,703 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,704 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:87, output treesize:25 [2018-11-23 13:54:21,730 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 13:54:21,732 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-11-23 13:54:21,732 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,735 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,743 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:54:21,745 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:54:21,745 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,747 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,750 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:21,750 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:39, output treesize:9 [2018-11-23 13:54:21,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:21,773 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:21,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 16 [2018-11-23 13:54:21,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-23 13:54:21,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-23 13:54:21,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2018-11-23 13:54:21,774 INFO L87 Difference]: Start difference. First operand 121 states and 130 transitions. Second operand 17 states. [2018-11-23 13:54:22,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:22,216 INFO L93 Difference]: Finished difference Result 206 states and 213 transitions. [2018-11-23 13:54:22,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-23 13:54:22,216 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 27 [2018-11-23 13:54:22,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:22,217 INFO L225 Difference]: With dead ends: 206 [2018-11-23 13:54:22,217 INFO L226 Difference]: Without dead ends: 206 [2018-11-23 13:54:22,218 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2018-11-23 13:54:22,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-11-23 13:54:22,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 120. [2018-11-23 13:54:22,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-11-23 13:54:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 128 transitions. [2018-11-23 13:54:22,221 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 128 transitions. Word has length 27 [2018-11-23 13:54:22,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:22,221 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 128 transitions. [2018-11-23 13:54:22,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-23 13:54:22,221 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 128 transitions. [2018-11-23 13:54:22,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 13:54:22,222 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:22,222 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:22,222 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:22,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:22,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1981878983, now seen corresponding path program 1 times [2018-11-23 13:54:22,222 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:22,222 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:22,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:22,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:22,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:22,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:22,397 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:22,397 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:22,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:22,437 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:22,466 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:22,466 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:22,467 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:22,467 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,474 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:54:22,474 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,479 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,479 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2018-11-23 13:54:22,498 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:22,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:22,504 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,506 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,516 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:22,518 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:22,518 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,520 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,528 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,528 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:41, output treesize:31 [2018-11-23 13:54:22,547 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:54:22,549 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 13:54:22,550 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,552 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,558 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:39, output treesize:28 [2018-11-23 13:54:22,590 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2018-11-23 13:54:22,593 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-11-23 13:54:22,593 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,603 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,614 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 14 [2018-11-23 13:54:22,616 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-23 13:54:22,616 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,619 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,626 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:22,626 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:84, output treesize:45 [2018-11-23 13:54:22,702 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2018-11-23 13:54:22,704 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2018-11-23 13:54:22,704 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,709 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,715 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:22,715 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:52, output treesize:25 [2018-11-23 13:54:22,753 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2018-11-23 13:54:22,753 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:22,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 13:54:22,763 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-11-23 13:54:22,763 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:22,766 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:54:22,771 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:54:22,771 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:41, output treesize:21 [2018-11-23 13:54:22,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:22,826 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:22,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2018-11-23 13:54:22,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-23 13:54:22,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-23 13:54:22,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2018-11-23 13:54:22,827 INFO L87 Difference]: Start difference. First operand 120 states and 128 transitions. Second operand 26 states. [2018-11-23 13:54:24,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:24,242 INFO L93 Difference]: Finished difference Result 192 states and 197 transitions. [2018-11-23 13:54:24,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-23 13:54:24,242 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2018-11-23 13:54:24,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:24,243 INFO L225 Difference]: With dead ends: 192 [2018-11-23 13:54:24,243 INFO L226 Difference]: Without dead ends: 192 [2018-11-23 13:54:24,244 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=424, Invalid=1928, Unknown=0, NotChecked=0, Total=2352 [2018-11-23 13:54:24,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2018-11-23 13:54:24,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 133. [2018-11-23 13:54:24,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-11-23 13:54:24,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 145 transitions. [2018-11-23 13:54:24,247 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 145 transitions. Word has length 34 [2018-11-23 13:54:24,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:24,247 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 145 transitions. [2018-11-23 13:54:24,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-23 13:54:24,248 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 145 transitions. [2018-11-23 13:54:24,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-23 13:54:24,250 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:24,250 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:24,251 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:24,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:24,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1277667385, now seen corresponding path program 2 times [2018-11-23 13:54:24,251 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:24,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:24,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:24,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:24,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:24,434 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:24,434 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:24,442 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 13:54:24,470 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 13:54:24,470 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:54:24,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:24,539 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 13:54:24,541 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 13:54:24,541 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,543 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,550 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-11-23 13:54:24,576 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:24,577 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:24,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:24,578 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,589 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,589 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:23 [2018-11-23 13:54:24,610 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:24,612 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:24,612 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,615 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,626 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-11-23 13:54:24,628 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:24,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 13:54:24,630 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,632 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,639 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:49, output treesize:27 [2018-11-23 13:54:24,658 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 13:54:24,660 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 13:54:24,660 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,661 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,664 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:17 [2018-11-23 13:54:24,684 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-11-23 13:54:24,691 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 13:54:24,691 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,694 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,701 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:24,701 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:26 [2018-11-23 13:54:24,735 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-11-23 13:54:24,740 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 13:54:24,741 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:24,751 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 13:54:24,751 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:24,754 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:54:24,758 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:54:24,759 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:33, output treesize:18 [2018-11-23 13:54:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 13:54:24,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:54:24,804 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [15] total 24 [2018-11-23 13:54:24,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-11-23 13:54:24,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-11-23 13:54:24,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2018-11-23 13:54:24,805 INFO L87 Difference]: Start difference. First operand 133 states and 145 transitions. Second operand 24 states. [2018-11-23 13:54:25,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:25,458 INFO L93 Difference]: Finished difference Result 169 states and 173 transitions. [2018-11-23 13:54:25,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-23 13:54:25,458 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 34 [2018-11-23 13:54:25,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:25,459 INFO L225 Difference]: With dead ends: 169 [2018-11-23 13:54:25,459 INFO L226 Difference]: Without dead ends: 169 [2018-11-23 13:54:25,459 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=946, Unknown=0, NotChecked=0, Total=1190 [2018-11-23 13:54:25,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-11-23 13:54:25,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 115. [2018-11-23 13:54:25,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-23 13:54:25,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 122 transitions. [2018-11-23 13:54:25,462 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 122 transitions. Word has length 34 [2018-11-23 13:54:25,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:25,462 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 122 transitions. [2018-11-23 13:54:25,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-11-23 13:54:25,462 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 122 transitions. [2018-11-23 13:54:25,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-23 13:54:25,463 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:25,463 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:25,463 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:25,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:25,464 INFO L82 PathProgramCache]: Analyzing trace with hash -855746321, now seen corresponding path program 1 times [2018-11-23 13:54:25,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:25,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:25,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:25,465 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:54:25,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:25,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:25,622 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:25,622 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:25,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:25,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:25,670 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:25,670 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:25,671 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:25,671 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,674 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,674 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:11 [2018-11-23 13:54:25,678 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:25,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:25,680 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,682 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,686 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:20 [2018-11-23 13:54:25,701 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:54:25,703 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:25,704 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,706 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,709 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,710 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:17 [2018-11-23 13:54:25,721 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:54:25,722 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:25,722 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,725 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,728 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:17 [2018-11-23 13:54:25,733 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:25,734 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:25,734 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:25,734 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,737 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:16 [2018-11-23 13:54:25,751 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 13:54:25,752 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:25,752 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,755 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,760 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,760 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:25 [2018-11-23 13:54:25,799 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 71 [2018-11-23 13:54:25,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 46 [2018-11-23 13:54:25,802 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,827 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 59 [2018-11-23 13:54:25,828 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:25,840 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:54:25,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:54:25,850 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:73, output treesize:49 [2018-11-23 13:54:25,887 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 13:54:25,890 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-11-23 13:54:25,890 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,892 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,895 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:25,895 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:5 [2018-11-23 13:54:25,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:25,929 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:25,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2018-11-23 13:54:25,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-23 13:54:25,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-23 13:54:25,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2018-11-23 13:54:25,930 INFO L87 Difference]: Start difference. First operand 115 states and 122 transitions. Second operand 20 states. [2018-11-23 13:54:26,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:26,458 INFO L93 Difference]: Finished difference Result 205 states and 215 transitions. [2018-11-23 13:54:26,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-23 13:54:26,458 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 35 [2018-11-23 13:54:26,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:26,458 INFO L225 Difference]: With dead ends: 205 [2018-11-23 13:54:26,459 INFO L226 Difference]: Without dead ends: 205 [2018-11-23 13:54:26,459 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 24 SyntacticMatches, 9 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=219, Invalid=903, Unknown=0, NotChecked=0, Total=1122 [2018-11-23 13:54:26,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-11-23 13:54:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 139. [2018-11-23 13:54:26,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-11-23 13:54:26,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 149 transitions. [2018-11-23 13:54:26,462 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 149 transitions. Word has length 35 [2018-11-23 13:54:26,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:26,462 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 149 transitions. [2018-11-23 13:54:26,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-23 13:54:26,463 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 149 transitions. [2018-11-23 13:54:26,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-23 13:54:26,463 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:26,463 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:26,464 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:26,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:26,464 INFO L82 PathProgramCache]: Analyzing trace with hash -855746320, now seen corresponding path program 1 times [2018-11-23 13:54:26,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:26,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:26,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:26,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:26,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:26,662 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:26,662 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:26,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:26,687 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:26,691 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:26,692 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:26,693 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:54:26,693 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,700 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-11-23 13:54:26,720 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:26,722 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:26,722 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,724 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,734 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:26,736 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:26,736 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,738 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,745 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,745 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:43, output treesize:36 [2018-11-23 13:54:26,805 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:26,809 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:54:26,811 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:26,811 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,816 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,830 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:26,832 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:26,832 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,836 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,844 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:82, output treesize:40 [2018-11-23 13:54:26,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 37 [2018-11-23 13:54:26,883 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:26,883 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,887 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,900 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:26,902 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:26,902 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,907 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,915 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,915 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:78, output treesize:40 [2018-11-23 13:54:26,919 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:26,919 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:26,920 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:26,921 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 13:54:26,921 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,933 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 21 [2018-11-23 13:54:26,934 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,942 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,942 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:47 [2018-11-23 13:54:26,970 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-23 13:54:26,972 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-23 13:54:26,972 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,976 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,991 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 50 [2018-11-23 13:54:26,993 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:26,993 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:26,999 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:27,010 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:27,011 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:72, output treesize:62 [2018-11-23 13:54:27,089 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 114 [2018-11-23 13:54:27,092 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-11-23 13:54:27,092 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:27,102 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:27,119 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 52 [2018-11-23 13:54:27,121 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-11-23 13:54:27,121 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:27,125 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:27,145 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:27,145 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:71 [2018-11-23 13:54:27,207 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 42 [2018-11-23 13:54:27,209 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 18 [2018-11-23 13:54:27,209 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:27,215 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2018-11-23 13:54:27,215 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:27,220 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:27,229 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:54:27,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:54:27,230 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:27,232 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:27,238 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:27,238 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:85, output treesize:18 [2018-11-23 13:54:27,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:27,297 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:27,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 26 [2018-11-23 13:54:27,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-11-23 13:54:27,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-11-23 13:54:27,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2018-11-23 13:54:27,298 INFO L87 Difference]: Start difference. First operand 139 states and 149 transitions. Second operand 27 states. [2018-11-23 13:54:28,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:28,685 INFO L93 Difference]: Finished difference Result 219 states and 227 transitions. [2018-11-23 13:54:28,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-23 13:54:28,686 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 35 [2018-11-23 13:54:28,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:28,686 INFO L225 Difference]: With dead ends: 219 [2018-11-23 13:54:28,686 INFO L226 Difference]: Without dead ends: 219 [2018-11-23 13:54:28,687 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=273, Invalid=1619, Unknown=0, NotChecked=0, Total=1892 [2018-11-23 13:54:28,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-11-23 13:54:28,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 133. [2018-11-23 13:54:28,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-11-23 13:54:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 142 transitions. [2018-11-23 13:54:28,690 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 142 transitions. Word has length 35 [2018-11-23 13:54:28,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:28,690 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 142 transitions. [2018-11-23 13:54:28,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-11-23 13:54:28,690 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 142 transitions. [2018-11-23 13:54:28,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-23 13:54:28,690 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:28,691 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:28,691 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:28,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:28,691 INFO L82 PathProgramCache]: Analyzing trace with hash 179674607, now seen corresponding path program 1 times [2018-11-23 13:54:28,691 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:28,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:28,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:28,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:28,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:28,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:28,858 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:28,859 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:28,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:28,881 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:28,887 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:28,888 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:28,888 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:28,888 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,897 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,897 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:11 [2018-11-23 13:54:28,900 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:28,905 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:28,905 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,907 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,912 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,912 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:20 [2018-11-23 13:54:28,930 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:54:28,932 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:28,932 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,935 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,938 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,938 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:17 [2018-11-23 13:54:28,948 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:54:28,949 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:28,949 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,952 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,955 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,955 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:17 [2018-11-23 13:54:28,962 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:28,962 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:28,963 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:28,963 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,966 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,966 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:16 [2018-11-23 13:54:28,983 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 13:54:28,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:28,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:28,991 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:29,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:29,024 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:25 [2018-11-23 13:54:29,073 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 71 [2018-11-23 13:54:29,076 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 46 [2018-11-23 13:54:29,076 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:29,100 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 39 [2018-11-23 13:54:29,101 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:29,113 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:54:29,123 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:54:29,123 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:73, output treesize:49 [2018-11-23 13:54:29,163 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 13:54:29,165 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-11-23 13:54:29,165 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:29,168 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:29,170 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:29,171 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:5 [2018-11-23 13:54:29,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:29,197 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:29,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 21 [2018-11-23 13:54:29,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-23 13:54:29,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-23 13:54:29,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2018-11-23 13:54:29,198 INFO L87 Difference]: Start difference. First operand 133 states and 142 transitions. Second operand 22 states. [2018-11-23 13:54:29,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:29,853 INFO L93 Difference]: Finished difference Result 206 states and 216 transitions. [2018-11-23 13:54:29,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-23 13:54:29,854 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 35 [2018-11-23 13:54:29,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:29,854 INFO L225 Difference]: With dead ends: 206 [2018-11-23 13:54:29,854 INFO L226 Difference]: Without dead ends: 206 [2018-11-23 13:54:29,855 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 27 SyntacticMatches, 7 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=263, Invalid=1219, Unknown=0, NotChecked=0, Total=1482 [2018-11-23 13:54:29,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-11-23 13:54:29,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 139. [2018-11-23 13:54:29,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2018-11-23 13:54:29,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 149 transitions. [2018-11-23 13:54:29,858 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 149 transitions. Word has length 35 [2018-11-23 13:54:29,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:29,858 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 149 transitions. [2018-11-23 13:54:29,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-23 13:54:29,858 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 149 transitions. [2018-11-23 13:54:29,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-23 13:54:29,858 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:29,859 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:29,859 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:29,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:29,859 INFO L82 PathProgramCache]: Analyzing trace with hash 179674608, now seen corresponding path program 1 times [2018-11-23 13:54:29,859 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:29,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:29,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:29,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:29,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:30,074 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:30,074 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:30,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:30,097 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:30,103 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:30,104 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:30,104 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:54:30,104 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,112 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,112 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-11-23 13:54:30,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:30,147 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:30,147 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,149 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,167 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:30,170 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:30,170 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,173 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,181 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,181 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:43, output treesize:36 [2018-11-23 13:54:30,240 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:30,243 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:54:30,245 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:30,245 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,250 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,261 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:30,263 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:30,263 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,266 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,272 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,272 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:82, output treesize:40 [2018-11-23 13:54:30,299 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 37 [2018-11-23 13:54:30,301 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:30,302 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,305 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,317 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:30,318 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:30,318 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,321 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,327 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,327 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:78, output treesize:40 [2018-11-23 13:54:30,330 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:30,331 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 21 [2018-11-23 13:54:30,331 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,341 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:30,342 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:30,343 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:30,343 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 13:54:30,343 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,351 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,352 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:47 [2018-11-23 13:54:30,378 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 39 [2018-11-23 13:54:30,380 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:30,381 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,386 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,401 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-23 13:54:30,403 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-23 13:54:30,403 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,407 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,417 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,417 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:72, output treesize:62 [2018-11-23 13:54:30,476 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 114 [2018-11-23 13:54:30,479 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-11-23 13:54:30,479 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,490 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 52 [2018-11-23 13:54:30,507 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-11-23 13:54:30,507 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,510 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,519 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:30,519 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:157, output treesize:71 [2018-11-23 13:54:30,600 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 42 [2018-11-23 13:54:30,603 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 18 [2018-11-23 13:54:30,603 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,611 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2018-11-23 13:54:30,611 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:30,619 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:30,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:54:30,630 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:54:30,630 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,632 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:30,643 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:30,644 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:85, output treesize:18 [2018-11-23 13:54:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:30,719 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:30,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15] total 28 [2018-11-23 13:54:30,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-11-23 13:54:30,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-11-23 13:54:30,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2018-11-23 13:54:30,720 INFO L87 Difference]: Start difference. First operand 139 states and 149 transitions. Second operand 29 states. [2018-11-23 13:54:32,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:32,357 INFO L93 Difference]: Finished difference Result 228 states and 237 transitions. [2018-11-23 13:54:32,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-23 13:54:32,358 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 35 [2018-11-23 13:54:32,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:32,358 INFO L225 Difference]: With dead ends: 228 [2018-11-23 13:54:32,358 INFO L226 Difference]: Without dead ends: 228 [2018-11-23 13:54:32,359 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=328, Invalid=2024, Unknown=0, NotChecked=0, Total=2352 [2018-11-23 13:54:32,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-11-23 13:54:32,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 138. [2018-11-23 13:54:32,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-23 13:54:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 147 transitions. [2018-11-23 13:54:32,360 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 147 transitions. Word has length 35 [2018-11-23 13:54:32,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:32,361 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 147 transitions. [2018-11-23 13:54:32,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-11-23 13:54:32,361 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 147 transitions. [2018-11-23 13:54:32,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 13:54:32,361 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:32,361 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:32,361 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:32,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:32,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1493039425, now seen corresponding path program 1 times [2018-11-23 13:54:32,361 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:32,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:32,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:32,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:32,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:32,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:32,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 13:54:32,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 13:54:32,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 13:54:32,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:54:32,453 INFO L87 Difference]: Start difference. First operand 138 states and 147 transitions. Second operand 11 states. [2018-11-23 13:54:32,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:32,693 INFO L93 Difference]: Finished difference Result 203 states and 210 transitions. [2018-11-23 13:54:32,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 13:54:32,694 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2018-11-23 13:54:32,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:32,694 INFO L225 Difference]: With dead ends: 203 [2018-11-23 13:54:32,694 INFO L226 Difference]: Without dead ends: 203 [2018-11-23 13:54:32,695 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2018-11-23 13:54:32,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-11-23 13:54:32,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 154. [2018-11-23 13:54:32,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-11-23 13:54:32,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2018-11-23 13:54:32,698 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 37 [2018-11-23 13:54:32,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:32,698 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2018-11-23 13:54:32,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 13:54:32,698 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2018-11-23 13:54:32,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 13:54:32,699 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:32,699 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:32,699 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:32,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:32,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1537766527, now seen corresponding path program 1 times [2018-11-23 13:54:32,699 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:32,699 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:32,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:32,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:32,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:32,825 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:32,825 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:32,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:32,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:32,857 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:32,857 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:32,858 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:32,858 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,862 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,862 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:11 [2018-11-23 13:54:32,867 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:32,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:32,868 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,869 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,872 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,873 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:15 [2018-11-23 13:54:32,894 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 36 [2018-11-23 13:54:32,895 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-11-23 13:54:32,895 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,896 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,897 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,898 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:8 [2018-11-23 13:54:32,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 13:54:32,943 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-11-23 13:54:32,943 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,946 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,949 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:10 [2018-11-23 13:54:32,970 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:32,970 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-11-23 13:54:32,971 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:32,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:32,975 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:11 [2018-11-23 13:54:32,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:33,005 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:33,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 19 [2018-11-23 13:54:33,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-23 13:54:33,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-23 13:54:33,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2018-11-23 13:54:33,006 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand 20 states. [2018-11-23 13:54:33,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:33,548 INFO L93 Difference]: Finished difference Result 205 states and 212 transitions. [2018-11-23 13:54:33,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-23 13:54:33,550 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 37 [2018-11-23 13:54:33,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:33,550 INFO L225 Difference]: With dead ends: 205 [2018-11-23 13:54:33,551 INFO L226 Difference]: Without dead ends: 205 [2018-11-23 13:54:33,551 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 22 SyntacticMatches, 12 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=847, Unknown=0, NotChecked=0, Total=1056 [2018-11-23 13:54:33,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2018-11-23 13:54:33,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 159. [2018-11-23 13:54:33,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-11-23 13:54:33,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 170 transitions. [2018-11-23 13:54:33,554 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 170 transitions. Word has length 37 [2018-11-23 13:54:33,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:33,554 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 170 transitions. [2018-11-23 13:54:33,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-23 13:54:33,554 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 170 transitions. [2018-11-23 13:54:33,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 13:54:33,555 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:33,555 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:33,555 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:33,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:33,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1537766528, now seen corresponding path program 1 times [2018-11-23 13:54:33,555 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:33,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:33,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:33,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:33,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:33,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:33,678 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:33,678 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:33,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:33,702 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:33,754 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 13:54:33,757 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 13:54:33,757 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:33,759 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:33,766 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-11-23 13:54:33,767 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2018-11-23 13:54:33,768 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:33,770 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:33,773 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:33,773 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:39, output treesize:13 [2018-11-23 13:54:33,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:33,815 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:33,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 20 [2018-11-23 13:54:33,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-23 13:54:33,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-23 13:54:33,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2018-11-23 13:54:33,816 INFO L87 Difference]: Start difference. First operand 159 states and 170 transitions. Second operand 21 states. [2018-11-23 13:54:34,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:34,666 INFO L93 Difference]: Finished difference Result 240 states and 247 transitions. [2018-11-23 13:54:34,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-23 13:54:34,667 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 37 [2018-11-23 13:54:34,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:34,667 INFO L225 Difference]: With dead ends: 240 [2018-11-23 13:54:34,668 INFO L226 Difference]: Without dead ends: 240 [2018-11-23 13:54:34,668 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=335, Invalid=1735, Unknown=0, NotChecked=0, Total=2070 [2018-11-23 13:54:34,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-11-23 13:54:34,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 176. [2018-11-23 13:54:34,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-23 13:54:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 192 transitions. [2018-11-23 13:54:34,671 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 192 transitions. Word has length 37 [2018-11-23 13:54:34,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:34,671 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 192 transitions. [2018-11-23 13:54:34,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-23 13:54:34,671 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 192 transitions. [2018-11-23 13:54:34,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-23 13:54:34,672 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:34,672 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:34,672 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:34,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:34,672 INFO L82 PathProgramCache]: Analyzing trace with hash -960417846, now seen corresponding path program 1 times [2018-11-23 13:54:34,672 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:34,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:34,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:34,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:34,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:34,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:34,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:34,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 13:54:34,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 13:54:34,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 13:54:34,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 13:54:34,734 INFO L87 Difference]: Start difference. First operand 176 states and 192 transitions. Second operand 8 states. [2018-11-23 13:54:34,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:34,915 INFO L93 Difference]: Finished difference Result 203 states and 216 transitions. [2018-11-23 13:54:34,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 13:54:34,917 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 38 [2018-11-23 13:54:34,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:34,917 INFO L225 Difference]: With dead ends: 203 [2018-11-23 13:54:34,917 INFO L226 Difference]: Without dead ends: 203 [2018-11-23 13:54:34,918 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-11-23 13:54:34,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-11-23 13:54:34,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 182. [2018-11-23 13:54:34,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-11-23 13:54:34,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 199 transitions. [2018-11-23 13:54:34,921 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 199 transitions. Word has length 38 [2018-11-23 13:54:34,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:34,922 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 199 transitions. [2018-11-23 13:54:34,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 13:54:34,922 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 199 transitions. [2018-11-23 13:54:34,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-23 13:54:34,922 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:34,922 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:34,923 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:34,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:34,923 INFO L82 PathProgramCache]: Analyzing trace with hash 456426220, now seen corresponding path program 1 times [2018-11-23 13:54:34,923 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:34,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:34,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:34,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:34,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:35,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:35,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:35,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-23 13:54:35,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 13:54:35,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 13:54:35,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-11-23 13:54:35,007 INFO L87 Difference]: Start difference. First operand 182 states and 199 transitions. Second operand 12 states. [2018-11-23 13:54:35,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:35,253 INFO L93 Difference]: Finished difference Result 203 states and 219 transitions. [2018-11-23 13:54:35,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 13:54:35,253 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-11-23 13:54:35,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:35,254 INFO L225 Difference]: With dead ends: 203 [2018-11-23 13:54:35,254 INFO L226 Difference]: Without dead ends: 203 [2018-11-23 13:54:35,254 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-11-23 13:54:35,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-11-23 13:54:35,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 185. [2018-11-23 13:54:35,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-11-23 13:54:35,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 202 transitions. [2018-11-23 13:54:35,258 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 202 transitions. Word has length 40 [2018-11-23 13:54:35,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:35,259 INFO L480 AbstractCegarLoop]: Abstraction has 185 states and 202 transitions. [2018-11-23 13:54:35,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 13:54:35,259 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 202 transitions. [2018-11-23 13:54:35,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 13:54:35,259 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:35,259 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:35,259 INFO L423 AbstractCegarLoop]: === Iteration 24 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:35,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:35,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1264311174, now seen corresponding path program 1 times [2018-11-23 13:54:35,260 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:35,260 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:35,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:35,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:35,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:35,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:35,509 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:35,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-23 13:54:35,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 13:54:35,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 13:54:35,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2018-11-23 13:54:35,510 INFO L87 Difference]: Start difference. First operand 185 states and 202 transitions. Second operand 14 states. [2018-11-23 13:54:35,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:35,780 INFO L93 Difference]: Finished difference Result 194 states and 210 transitions. [2018-11-23 13:54:35,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 13:54:35,781 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2018-11-23 13:54:35,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:35,781 INFO L225 Difference]: With dead ends: 194 [2018-11-23 13:54:35,781 INFO L226 Difference]: Without dead ends: 185 [2018-11-23 13:54:35,782 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-11-23 13:54:35,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-11-23 13:54:35,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 177. [2018-11-23 13:54:35,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-23 13:54:35,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 193 transitions. [2018-11-23 13:54:35,784 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 193 transitions. Word has length 41 [2018-11-23 13:54:35,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:35,784 INFO L480 AbstractCegarLoop]: Abstraction has 177 states and 193 transitions. [2018-11-23 13:54:35,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 13:54:35,784 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 193 transitions. [2018-11-23 13:54:35,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 13:54:35,785 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:35,785 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:35,785 INFO L423 AbstractCegarLoop]: === Iteration 25 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:35,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:35,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1316131840, now seen corresponding path program 1 times [2018-11-23 13:54:35,786 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:35,786 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:35,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:35,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:35,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:35,893 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:35,894 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:35,894 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:35,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:35,916 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:35,926 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:35,927 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:35,927 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:35,927 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,930 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,931 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2018-11-23 13:54:35,936 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:35,938 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:35,938 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,939 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,947 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:35,949 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:35,949 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,951 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,956 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,956 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:33, output treesize:22 [2018-11-23 13:54:35,962 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 13:54:35,963 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 13:54:35,963 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,964 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,967 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,967 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:12 [2018-11-23 13:54:35,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:54:35,972 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:35,973 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,975 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,977 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,977 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:7 [2018-11-23 13:54:35,982 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:54:35,983 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:54:35,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,984 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:35,985 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-11-23 13:54:35,999 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:36,013 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:36,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 13 [2018-11-23 13:54:36,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 13:54:36,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 13:54:36,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2018-11-23 13:54:36,014 INFO L87 Difference]: Start difference. First operand 177 states and 193 transitions. Second operand 14 states. [2018-11-23 13:54:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:36,325 INFO L93 Difference]: Finished difference Result 203 states and 215 transitions. [2018-11-23 13:54:36,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-23 13:54:36,325 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2018-11-23 13:54:36,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:36,326 INFO L225 Difference]: With dead ends: 203 [2018-11-23 13:54:36,326 INFO L226 Difference]: Without dead ends: 203 [2018-11-23 13:54:36,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 35 SyntacticMatches, 7 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2018-11-23 13:54:36,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2018-11-23 13:54:36,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 174. [2018-11-23 13:54:36,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-11-23 13:54:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 189 transitions. [2018-11-23 13:54:36,329 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 189 transitions. Word has length 41 [2018-11-23 13:54:36,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:36,330 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 189 transitions. [2018-11-23 13:54:36,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 13:54:36,330 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 189 transitions. [2018-11-23 13:54:36,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 13:54:36,330 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:36,330 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:36,331 INFO L423 AbstractCegarLoop]: === Iteration 26 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:36,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:36,331 INFO L82 PathProgramCache]: Analyzing trace with hash -432038726, now seen corresponding path program 1 times [2018-11-23 13:54:36,331 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:36,331 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:36,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:36,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:36,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:36,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:36,600 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:36,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:36,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:36,648 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:36,649 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:36,649 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:54:36,649 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,655 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,655 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-11-23 13:54:36,677 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:36,678 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:36,678 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,680 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,694 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:36,696 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:36,696 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,698 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,705 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:29 [2018-11-23 13:54:36,758 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:36,760 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:36,761 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,764 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,775 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:54:36,777 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:36,777 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,782 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,788 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:67, output treesize:29 [2018-11-23 13:54:36,801 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:36,803 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:36,803 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,807 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,818 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:54:36,820 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:36,820 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,823 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,829 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,829 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:67, output treesize:29 [2018-11-23 13:54:36,838 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:36,839 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:36,840 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:36,840 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 42 [2018-11-23 13:54:36,841 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,851 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,852 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:46 [2018-11-23 13:54:36,878 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-11-23 13:54:36,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:54:36,880 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,884 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,898 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-23 13:54:36,900 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:54:36,900 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,904 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,914 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,914 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:68, output treesize:70 [2018-11-23 13:54:36,968 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 144 [2018-11-23 13:54:36,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:54:36,971 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,978 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,989 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 97 [2018-11-23 13:54:36,991 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:54:36,991 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:36,994 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:37,000 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:37,001 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:186, output treesize:76 [2018-11-23 13:54:37,045 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 53 [2018-11-23 13:54:37,047 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 42 [2018-11-23 13:54:37,047 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:37,051 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:37,059 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:37,060 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:90, output treesize:71 [2018-11-23 13:54:37,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 45 [2018-11-23 13:54:37,120 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-11-23 13:54:37,121 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:37,126 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2018-11-23 13:54:37,127 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:37,131 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:37,136 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:37,137 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:75, output treesize:28 [2018-11-23 13:54:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:37,204 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:37,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 31 [2018-11-23 13:54:37,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-11-23 13:54:37,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-11-23 13:54:37,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=871, Unknown=0, NotChecked=0, Total=992 [2018-11-23 13:54:37,205 INFO L87 Difference]: Start difference. First operand 174 states and 189 transitions. Second operand 32 states. [2018-11-23 13:54:38,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:38,480 INFO L93 Difference]: Finished difference Result 261 states and 283 transitions. [2018-11-23 13:54:38,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-23 13:54:38,480 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 42 [2018-11-23 13:54:38,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:38,482 INFO L225 Difference]: With dead ends: 261 [2018-11-23 13:54:38,482 INFO L226 Difference]: Without dead ends: 261 [2018-11-23 13:54:38,482 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=356, Invalid=1996, Unknown=0, NotChecked=0, Total=2352 [2018-11-23 13:54:38,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2018-11-23 13:54:38,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 176. [2018-11-23 13:54:38,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-23 13:54:38,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 192 transitions. [2018-11-23 13:54:38,487 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 192 transitions. Word has length 42 [2018-11-23 13:54:38,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:38,487 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 192 transitions. [2018-11-23 13:54:38,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-11-23 13:54:38,487 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 192 transitions. [2018-11-23 13:54:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 13:54:38,487 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:38,488 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:38,488 INFO L423 AbstractCegarLoop]: === Iteration 27 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:38,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:38,488 INFO L82 PathProgramCache]: Analyzing trace with hash -432038725, now seen corresponding path program 1 times [2018-11-23 13:54:38,488 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:38,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:38,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:38,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:38,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:38,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:38,861 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:38,861 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:38,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:38,895 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:38,912 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:38,916 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:38,917 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:54:38,917 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:38,923 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:38,924 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-11-23 13:54:38,954 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:38,957 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:38,958 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:38,961 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:38,972 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:38,973 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:38,974 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:38,975 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:38,981 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:38,982 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:29 [2018-11-23 13:54:39,028 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:54:39,030 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:39,030 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,033 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,043 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:39,044 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:39,045 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,050 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,056 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:67, output treesize:29 [2018-11-23 13:54:39,068 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:54:39,070 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:39,070 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,074 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,086 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:39,088 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:39,088 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,092 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,098 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,098 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:67, output treesize:29 [2018-11-23 13:54:39,108 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:39,109 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:39,111 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:39,112 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-23 13:54:39,112 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,124 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:54:39,124 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,145 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,145 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:35 [2018-11-23 13:54:39,192 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-23 13:54:39,194 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:54:39,194 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,198 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,213 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 35 [2018-11-23 13:54:39,215 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:54:39,215 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,221 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,230 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:54, output treesize:71 [2018-11-23 13:54:39,304 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 175 [2018-11-23 13:54:39,306 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:54:39,306 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,314 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,330 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 107 [2018-11-23 13:54:39,332 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:54:39,332 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,338 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,344 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,344 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:187, output treesize:77 [2018-11-23 13:54:39,463 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 80 [2018-11-23 13:54:39,464 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 16 [2018-11-23 13:54:39,465 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,472 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 31 [2018-11-23 13:54:39,473 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:39,482 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:39,491 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 13:54:39,492 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 13:54:39,492 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,503 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:39,513 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:107, output treesize:9 [2018-11-23 13:54:39,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:39,546 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:39,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 29 [2018-11-23 13:54:39,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-11-23 13:54:39,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-11-23 13:54:39,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2018-11-23 13:54:39,547 INFO L87 Difference]: Start difference. First operand 176 states and 192 transitions. Second operand 30 states. [2018-11-23 13:54:40,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:40,869 INFO L93 Difference]: Finished difference Result 278 states and 298 transitions. [2018-11-23 13:54:40,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-23 13:54:40,870 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 42 [2018-11-23 13:54:40,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:40,870 INFO L225 Difference]: With dead ends: 278 [2018-11-23 13:54:40,870 INFO L226 Difference]: Without dead ends: 278 [2018-11-23 13:54:40,871 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=261, Invalid=1809, Unknown=0, NotChecked=0, Total=2070 [2018-11-23 13:54:40,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-11-23 13:54:40,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 176. [2018-11-23 13:54:40,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-11-23 13:54:40,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 191 transitions. [2018-11-23 13:54:40,874 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 191 transitions. Word has length 42 [2018-11-23 13:54:40,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:40,874 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 191 transitions. [2018-11-23 13:54:40,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-11-23 13:54:40,874 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 191 transitions. [2018-11-23 13:54:40,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 13:54:40,874 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:40,875 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:40,875 INFO L423 AbstractCegarLoop]: === Iteration 28 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:40,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:40,875 INFO L82 PathProgramCache]: Analyzing trace with hash 603382202, now seen corresponding path program 2 times [2018-11-23 13:54:40,875 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:40,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:40,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:40,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:40,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:41,146 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:41,146 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:41,155 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 13:54:41,181 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 13:54:41,181 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:54:41,183 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:41,233 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,234 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:54:41,235 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,242 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,242 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-11-23 13:54:41,266 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:41,268 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:41,268 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,269 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,281 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:41,283 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:41,283 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,285 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,293 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,294 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:32 [2018-11-23 13:54:41,363 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,366 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:41,368 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:41,368 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,371 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,380 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,383 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:54:41,384 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:41,384 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,388 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,393 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,394 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:78, output treesize:36 [2018-11-23 13:54:41,413 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,416 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:41,417 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:41,417 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,421 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,430 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,432 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:54:41,434 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:41,434 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,438 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,443 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,443 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:78, output treesize:36 [2018-11-23 13:54:41,462 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,462 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,463 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,463 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 13:54:41,464 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,476 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,476 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:57 [2018-11-23 13:54:41,507 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,510 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-23 13:54:41,511 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:54:41,511 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,515 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,528 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,531 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 60 [2018-11-23 13:54:41,533 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:54:41,533 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,539 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,551 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,551 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:79, output treesize:77 [2018-11-23 13:54:41,612 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 144 [2018-11-23 13:54:41,614 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:54:41,614 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,621 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,634 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 97 [2018-11-23 13:54:41,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:54:41,636 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,644 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,653 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,653 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:189, output treesize:79 [2018-11-23 13:54:41,706 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 53 [2018-11-23 13:54:41,708 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:54:41,708 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 45 [2018-11-23 13:54:41,709 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,713 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,721 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:41,721 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:77 [2018-11-23 13:54:41,816 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:41,816 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:54:41,818 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 58 [2018-11-23 13:54:41,820 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:54:41,822 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2018-11-23 13:54:41,822 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:41,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 14 [2018-11-23 13:54:41,840 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:41,849 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:41,860 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:41,860 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:81, output treesize:28 [2018-11-23 13:54:41,923 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:41,939 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:41,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 35 [2018-11-23 13:54:41,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-11-23 13:54:41,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-11-23 13:54:41,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1102, Unknown=0, NotChecked=0, Total=1260 [2018-11-23 13:54:41,940 INFO L87 Difference]: Start difference. First operand 176 states and 191 transitions. Second operand 36 states. [2018-11-23 13:54:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:43,275 INFO L93 Difference]: Finished difference Result 265 states and 287 transitions. [2018-11-23 13:54:43,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-23 13:54:43,276 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 42 [2018-11-23 13:54:43,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:43,276 INFO L225 Difference]: With dead ends: 265 [2018-11-23 13:54:43,276 INFO L226 Difference]: Without dead ends: 265 [2018-11-23 13:54:43,277 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=453, Invalid=2409, Unknown=0, NotChecked=0, Total=2862 [2018-11-23 13:54:43,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-11-23 13:54:43,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 182. [2018-11-23 13:54:43,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2018-11-23 13:54:43,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 198 transitions. [2018-11-23 13:54:43,281 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 198 transitions. Word has length 42 [2018-11-23 13:54:43,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:43,281 INFO L480 AbstractCegarLoop]: Abstraction has 182 states and 198 transitions. [2018-11-23 13:54:43,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-11-23 13:54:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 198 transitions. [2018-11-23 13:54:43,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 13:54:43,282 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:43,282 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:43,282 INFO L423 AbstractCegarLoop]: === Iteration 29 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:43,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:43,283 INFO L82 PathProgramCache]: Analyzing trace with hash 603382203, now seen corresponding path program 2 times [2018-11-23 13:54:43,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:43,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:43,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:43,284 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:54:43,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:43,568 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:43,569 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:43,569 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:43,577 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 13:54:43,602 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 13:54:43,602 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:54:43,605 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:43,657 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:43,665 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:43,665 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:54:43,666 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,675 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,675 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-11-23 13:54:43,703 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:43,704 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:43,705 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,707 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,718 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:43,719 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:43,720 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,721 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,729 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,730 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:32 [2018-11-23 13:54:43,808 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:43,811 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:54:43,813 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:43,813 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,819 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,831 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:43,833 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:43,833 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,838 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,845 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,845 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:78, output treesize:36 [2018-11-23 13:54:43,869 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:43,873 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:43,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:43,875 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,879 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,890 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:43,892 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:54:43,895 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:43,895 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,902 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,911 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:78, output treesize:36 [2018-11-23 13:54:43,937 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:54:43,938 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,951 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:43,951 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:43,953 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:43,953 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 13:54:43,954 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,962 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:43,962 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:54, output treesize:46 [2018-11-23 13:54:43,993 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:43,999 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-11-23 13:54:44,001 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:54:44,001 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,007 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,022 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-23 13:54:44,023 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:54:44,024 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,028 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,038 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:65, output treesize:78 [2018-11-23 13:54:44,101 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 175 [2018-11-23 13:54:44,103 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:54:44,103 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,111 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 107 [2018-11-23 13:54:44,127 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:54:44,127 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,132 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,138 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,138 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:190, output treesize:80 [2018-11-23 13:54:44,280 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:54:44,283 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 87 [2018-11-23 13:54:44,285 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:54:44,286 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2018-11-23 13:54:44,286 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,296 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:54:44,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 34 [2018-11-23 13:54:44,297 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:44,305 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:44,318 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 13:54:44,321 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:54:44,322 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:54:44,322 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,326 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,332 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:44,332 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:113, output treesize:9 [2018-11-23 13:54:44,348 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:44,363 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:44,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 33 [2018-11-23 13:54:44,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-11-23 13:54:44,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-11-23 13:54:44,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1001, Unknown=1, NotChecked=0, Total=1122 [2018-11-23 13:54:44,364 INFO L87 Difference]: Start difference. First operand 182 states and 198 transitions. Second operand 34 states. [2018-11-23 13:54:45,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:45,995 INFO L93 Difference]: Finished difference Result 287 states and 308 transitions. [2018-11-23 13:54:45,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-23 13:54:45,996 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 42 [2018-11-23 13:54:45,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:45,997 INFO L225 Difference]: With dead ends: 287 [2018-11-23 13:54:45,997 INFO L226 Difference]: Without dead ends: 287 [2018-11-23 13:54:45,997 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=330, Invalid=2119, Unknown=1, NotChecked=0, Total=2450 [2018-11-23 13:54:45,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2018-11-23 13:54:45,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 187. [2018-11-23 13:54:45,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-11-23 13:54:45,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 203 transitions. [2018-11-23 13:54:45,999 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 203 transitions. Word has length 42 [2018-11-23 13:54:45,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:45,999 INFO L480 AbstractCegarLoop]: Abstraction has 187 states and 203 transitions. [2018-11-23 13:54:45,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-11-23 13:54:45,999 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 203 transitions. [2018-11-23 13:54:46,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 13:54:46,000 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:46,000 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:46,000 INFO L423 AbstractCegarLoop]: === Iteration 30 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:46,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:46,000 INFO L82 PathProgramCache]: Analyzing trace with hash -2127033707, now seen corresponding path program 1 times [2018-11-23 13:54:46,000 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:46,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:46,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:46,001 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:54:46,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:46,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:54:46,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 13:54:46,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 13:54:46,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 13:54:46,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-23 13:54:46,091 INFO L87 Difference]: Start difference. First operand 187 states and 203 transitions. Second operand 9 states. [2018-11-23 13:54:46,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:46,197 INFO L93 Difference]: Finished difference Result 197 states and 203 transitions. [2018-11-23 13:54:46,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 13:54:46,197 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 43 [2018-11-23 13:54:46,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:46,198 INFO L225 Difference]: With dead ends: 197 [2018-11-23 13:54:46,198 INFO L226 Difference]: Without dead ends: 176 [2018-11-23 13:54:46,198 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:54:46,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-11-23 13:54:46,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 157. [2018-11-23 13:54:46,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-11-23 13:54:46,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 170 transitions. [2018-11-23 13:54:46,201 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 170 transitions. Word has length 43 [2018-11-23 13:54:46,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:46,202 INFO L480 AbstractCegarLoop]: Abstraction has 157 states and 170 transitions. [2018-11-23 13:54:46,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 13:54:46,202 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 170 transitions. [2018-11-23 13:54:46,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 13:54:46,202 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:46,202 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:46,202 INFO L423 AbstractCegarLoop]: === Iteration 31 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:46,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:46,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1622216028, now seen corresponding path program 2 times [2018-11-23 13:54:46,203 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:46,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:46,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:46,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:54:46,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:46,434 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:46,435 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:46,441 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 13:54:46,469 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 13:54:46,469 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:54:46,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:46,517 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:46,517 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:46,518 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:46,518 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,521 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,521 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2018-11-23 13:54:46,536 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:46,537 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:46,538 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,543 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,543 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-11-23 13:54:46,585 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:46,588 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-11-23 13:54:46,589 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:46,589 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,592 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,594 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,595 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:38, output treesize:15 [2018-11-23 13:54:46,624 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-11-23 13:54:46,625 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-23 13:54:46,626 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,627 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,635 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:46,637 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 39 [2018-11-23 13:54:46,639 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:46,639 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,643 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,649 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:46, output treesize:31 [2018-11-23 13:54:46,669 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2018-11-23 13:54:46,670 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:54:46,671 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,672 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,675 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,675 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:43, output treesize:24 [2018-11-23 13:54:46,721 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 47 [2018-11-23 13:54:46,723 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2018-11-23 13:54:46,723 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,733 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,736 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:43, output treesize:24 [2018-11-23 13:54:46,749 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 47 [2018-11-23 13:54:46,751 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:46,752 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2018-11-23 13:54:46,752 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,764 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2018-11-23 13:54:46,765 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,770 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,774 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,774 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:43, output treesize:24 [2018-11-23 13:54:46,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:54:46,776 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,785 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-11-23 13:54:46,785 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,792 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,792 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:39, output treesize:37 [2018-11-23 13:54:46,828 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 39 [2018-11-23 13:54:46,830 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2018-11-23 13:54:46,830 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,848 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2018-11-23 13:54:46,848 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:46,861 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:54:46,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:46,880 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:46,881 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,882 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,898 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:54:46,898 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:59, output treesize:94 [2018-11-23 13:54:46,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-23 13:54:46,944 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 13:54:46,944 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,950 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,968 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 56 [2018-11-23 13:54:46,969 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 13:54:46,970 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,976 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:46,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 13:54:46,992 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:113, output treesize:91 [2018-11-23 13:54:47,037 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 88 [2018-11-23 13:54:47,038 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,040 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 80 [2018-11-23 13:54:47,040 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,116 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 88 treesize of output 104 [2018-11-23 13:54:47,122 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 73 [2018-11-23 13:54:47,123 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,251 INFO L267 ElimStorePlain]: Start of recursive call 4: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,288 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 73 [2018-11-23 13:54:47,290 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-23 13:54:47,290 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,301 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,304 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2018-11-23 13:54:47,306 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2018-11-23 13:54:47,306 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,314 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,352 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 77 [2018-11-23 13:54:47,355 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 49 [2018-11-23 13:54:47,355 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,384 INFO L267 ElimStorePlain]: Start of recursive call 10: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-11-23 13:54:47,404 INFO L202 ElimStorePlain]: Needed 11 recursive calls to eliminate 7 variables, input treesize:203, output treesize:91 [2018-11-23 13:54:47,543 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 54 [2018-11-23 13:54:47,545 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 43 [2018-11-23 13:54:47,545 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,569 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 40 [2018-11-23 13:54:47,569 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:47,594 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 36 [2018-11-23 13:54:47,594 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,617 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 13:54:47,654 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 62 [2018-11-23 13:54:47,655 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2018-11-23 13:54:47,656 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,679 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 48 [2018-11-23 13:54:47,680 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:47,706 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 44 [2018-11-23 13:54:47,706 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,729 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 13:54:47,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 6 xjuncts. [2018-11-23 13:54:47,776 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:109, output treesize:197 [2018-11-23 13:54:47,902 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-23 13:54:47,903 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,908 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 13:54:47,909 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:54:47,910 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2018-11-23 13:54:47,910 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,913 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:47,920 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:66, output treesize:5 [2018-11-23 13:54:47,934 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:47,949 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:47,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 36 [2018-11-23 13:54:47,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-11-23 13:54:47,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-11-23 13:54:47,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1210, Unknown=0, NotChecked=0, Total=1332 [2018-11-23 13:54:47,950 INFO L87 Difference]: Start difference. First operand 157 states and 170 transitions. Second operand 37 states. [2018-11-23 13:54:50,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:50,373 INFO L93 Difference]: Finished difference Result 308 states and 328 transitions. [2018-11-23 13:54:50,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-11-23 13:54:50,373 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 43 [2018-11-23 13:54:50,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:50,374 INFO L225 Difference]: With dead ends: 308 [2018-11-23 13:54:50,374 INFO L226 Difference]: Without dead ends: 308 [2018-11-23 13:54:50,374 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1230 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=727, Invalid=4385, Unknown=0, NotChecked=0, Total=5112 [2018-11-23 13:54:50,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2018-11-23 13:54:50,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 181. [2018-11-23 13:54:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-23 13:54:50,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 197 transitions. [2018-11-23 13:54:50,377 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 197 transitions. Word has length 43 [2018-11-23 13:54:50,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:50,377 INFO L480 AbstractCegarLoop]: Abstraction has 181 states and 197 transitions. [2018-11-23 13:54:50,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-11-23 13:54:50,377 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 197 transitions. [2018-11-23 13:54:50,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 13:54:50,378 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:50,378 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:50,378 INFO L423 AbstractCegarLoop]: === Iteration 32 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:50,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:50,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1622216029, now seen corresponding path program 2 times [2018-11-23 13:54:50,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:50,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:50,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:50,379 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:54:50,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:50,642 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:50,642 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:50,642 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:50,650 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 13:54:50,675 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 13:54:50,675 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:54:50,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:50,700 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 13:54:50,701 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 13:54:50,701 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,706 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2018-11-23 13:54:50,741 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:50,742 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:50,742 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:50,742 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,747 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,747 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:23 [2018-11-23 13:54:50,765 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:50,767 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:50,767 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,769 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,780 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2018-11-23 13:54:50,782 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:50,783 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 13:54:50,783 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,786 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,792 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,793 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:54, output treesize:32 [2018-11-23 13:54:50,816 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 13:54:50,817 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 13:54:50,818 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,819 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,823 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,824 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:22 [2018-11-23 13:54:50,867 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-11-23 13:54:50,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 13:54:50,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,872 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,886 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2018-11-23 13:54:50,911 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:50,911 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:50,912 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:54:50,912 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,917 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,917 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:36, output treesize:30 [2018-11-23 13:54:50,939 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:50,940 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:50,940 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,942 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,953 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-11-23 13:54:50,955 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:50,956 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 13:54:50,956 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,960 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,965 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,966 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:56, output treesize:34 [2018-11-23 13:54:50,987 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 13:54:50,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 13:54:50,988 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:50,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:50,995 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:30 [2018-11-23 13:54:51,082 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 52 [2018-11-23 13:54:51,085 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2018-11-23 13:54:51,086 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,108 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,114 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:51,114 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:39 [2018-11-23 13:54:51,148 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:51,149 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-11-23 13:54:51,151 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 9 [2018-11-23 13:54:51,151 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,155 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,159 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:39, output treesize:26 [2018-11-23 13:54:51,183 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:54:51,183 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,189 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,189 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:34 [2018-11-23 13:54:51,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:51,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:51,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,221 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:51,238 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:51,238 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,239 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,254 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-11-23 13:54:51,256 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:51,257 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 13:54:51,257 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,261 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,269 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:71, output treesize:42 [2018-11-23 13:54:51,298 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 13:54:51,299 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-23 13:54:51,299 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,301 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,309 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:54:51,310 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 13:54:51,311 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,312 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,318 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:51,318 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:56, output treesize:34 [2018-11-23 13:54:51,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-23 13:54:51,348 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,361 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:51,374 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 72 [2018-11-23 13:54:51,377 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2018-11-23 13:54:51,377 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,427 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:51,431 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 39 [2018-11-23 13:54:51,432 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:51,477 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:54:51,477 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:51,478 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2018-11-23 13:54:51,478 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,494 INFO L267 ElimStorePlain]: Start of recursive call 3: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 13:54:51,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 9 dim-0 vars, and 3 xjuncts. [2018-11-23 13:54:51,512 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:54, output treesize:106 [2018-11-23 13:54:51,618 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2018-11-23 13:54:51,619 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 13:54:51,620 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-11-23 13:54:51,630 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:51,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:54:51,654 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:51,655 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:51,655 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2018-11-23 13:54:51,660 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 17 [2018-11-23 13:54:51,660 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:51,670 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 13:54:51,670 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:51,677 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:54:51,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-11-23 13:54:51,700 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 9 variables, input treesize:81, output treesize:38 [2018-11-23 13:54:51,760 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:51,775 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:51,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 24] total 41 [2018-11-23 13:54:51,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-11-23 13:54:51,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-11-23 13:54:51,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1490, Unknown=0, NotChecked=0, Total=1640 [2018-11-23 13:54:51,777 INFO L87 Difference]: Start difference. First operand 181 states and 197 transitions. Second operand 41 states. [2018-11-23 13:54:53,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:53,977 INFO L93 Difference]: Finished difference Result 183 states and 189 transitions. [2018-11-23 13:54:53,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-11-23 13:54:53,978 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 43 [2018-11-23 13:54:53,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:53,978 INFO L225 Difference]: With dead ends: 183 [2018-11-23 13:54:53,978 INFO L226 Difference]: Without dead ends: 183 [2018-11-23 13:54:53,979 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1094 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=655, Invalid=4457, Unknown=0, NotChecked=0, Total=5112 [2018-11-23 13:54:53,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-11-23 13:54:53,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 134. [2018-11-23 13:54:53,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-23 13:54:53,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 142 transitions. [2018-11-23 13:54:53,982 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 142 transitions. Word has length 43 [2018-11-23 13:54:53,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:53,982 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 142 transitions. [2018-11-23 13:54:53,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-11-23 13:54:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 142 transitions. [2018-11-23 13:54:53,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 13:54:53,982 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:53,983 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:53,983 INFO L423 AbstractCegarLoop]: === Iteration 33 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:53,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:53,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1637330340, now seen corresponding path program 3 times [2018-11-23 13:54:53,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:53,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:53,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:53,984 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:54:53,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:54,277 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:54,278 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:54,278 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:54,295 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 13:54:54,382 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-23 13:54:54,382 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:54:54,385 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:54,393 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:54:54,393 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,396 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,397 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:54:54,436 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,437 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,437 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:54:54,438 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,444 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-11-23 13:54:54,470 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:54,471 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:54,471 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,473 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,480 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,480 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-11-23 13:54:54,550 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,555 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:54:54,557 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:54,557 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,562 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,567 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,567 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:52, output treesize:29 [2018-11-23 13:54:54,588 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,588 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,589 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,590 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 13:54:54,590 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,600 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:50 [2018-11-23 13:54:54,632 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,634 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:54:54,636 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:54,636 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,641 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,649 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:66, output treesize:54 [2018-11-23 13:54:54,727 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,728 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,733 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 89 [2018-11-23 13:54:54,734 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:54,734 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,741 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,749 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:54,749 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:97, output treesize:78 [2018-11-23 13:54:54,775 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,776 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,780 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 89 [2018-11-23 13:54:54,782 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:54,782 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,789 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,797 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:54,797 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:97, output treesize:70 [2018-11-23 13:54:54,821 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,822 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,823 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,824 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,824 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 99 [2018-11-23 13:54:54,824 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:54,839 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:89, output treesize:107 [2018-11-23 13:54:54,874 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,874 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:54,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 97 [2018-11-23 13:54:54,881 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:54,881 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,892 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,905 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:54,905 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:118, output treesize:115 [2018-11-23 13:54:54,983 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 129 [2018-11-23 13:54:54,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:54:54,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:54,995 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:55,006 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:55,006 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:199, output treesize:144 [2018-11-23 13:54:55,082 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 74 [2018-11-23 13:54:55,084 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2018-11-23 13:54:55,084 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:55,100 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 20 [2018-11-23 13:54:55,100 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:55,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2018-11-23 13:54:55,118 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:55,128 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:55,139 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:55,139 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:154, output treesize:45 [2018-11-23 13:54:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:55,220 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:55,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 37 [2018-11-23 13:54:55,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-11-23 13:54:55,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-11-23 13:54:55,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1216, Unknown=0, NotChecked=0, Total=1406 [2018-11-23 13:54:55,221 INFO L87 Difference]: Start difference. First operand 134 states and 142 transitions. Second operand 38 states. [2018-11-23 13:54:56,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:54:56,918 INFO L93 Difference]: Finished difference Result 268 states and 281 transitions. [2018-11-23 13:54:56,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-11-23 13:54:56,918 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 43 [2018-11-23 13:54:56,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:54:56,918 INFO L225 Difference]: With dead ends: 268 [2018-11-23 13:54:56,918 INFO L226 Difference]: Without dead ends: 268 [2018-11-23 13:54:56,919 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1337 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=803, Invalid=3889, Unknown=0, NotChecked=0, Total=4692 [2018-11-23 13:54:56,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2018-11-23 13:54:56,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 158. [2018-11-23 13:54:56,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-11-23 13:54:56,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2018-11-23 13:54:56,922 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 43 [2018-11-23 13:54:56,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:54:56,923 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2018-11-23 13:54:56,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-11-23 13:54:56,923 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2018-11-23 13:54:56,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 13:54:56,923 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:54:56,923 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:54:56,924 INFO L423 AbstractCegarLoop]: === Iteration 34 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:54:56,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:54:56,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1637330339, now seen corresponding path program 3 times [2018-11-23 13:54:56,924 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:54:56,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:54:56,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:56,925 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:54:56,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:54:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:54:57,219 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:57,219 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:54:57,219 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:54:57,228 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 13:54:57,273 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-23 13:54:57,273 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:54:57,275 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:54:57,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:54:57,278 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,281 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,281 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:54:57,315 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,316 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:54:57,317 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,324 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-11-23 13:54:57,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:57,349 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:57,349 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,351 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,360 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:54:57,361 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:57,361 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,363 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,370 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,370 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:46, output treesize:39 [2018-11-23 13:54:57,439 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:54:57,444 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:57,444 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,449 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,461 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:54:57,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:54:57,462 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,465 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,472 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,472 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:85, output treesize:43 [2018-11-23 13:54:57,500 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 21 [2018-11-23 13:54:57,501 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,512 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,513 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,514 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,514 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 13:54:57,514 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,523 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,523 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:54, output treesize:50 [2018-11-23 13:54:57,551 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 39 [2018-11-23 13:54:57,552 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:57,553 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,558 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,575 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-23 13:54:57,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-23 13:54:57,577 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,581 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,593 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:80, output treesize:70 [2018-11-23 13:54:57,690 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,690 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,696 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 100 [2018-11-23 13:54:57,698 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:57,698 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,708 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,722 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,725 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2018-11-23 13:54:57,727 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-23 13:54:57,727 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,730 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,740 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:57,741 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:132, output treesize:86 [2018-11-23 13:54:57,769 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,772 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2018-11-23 13:54:57,774 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-23 13:54:57,774 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,777 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,792 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,793 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,798 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 100 [2018-11-23 13:54:57,799 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:54:57,799 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,808 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,818 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:57,819 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:132, output treesize:94 [2018-11-23 13:54:57,846 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,847 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,847 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-11-23 13:54:57,847 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,864 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 54 [2018-11-23 13:54:57,864 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,877 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:57,877 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:108, output treesize:101 [2018-11-23 13:54:57,913 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,916 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 28 [2018-11-23 13:54:57,918 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-11-23 13:54:57,918 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,922 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,941 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,941 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:54:57,946 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 102 [2018-11-23 13:54:57,948 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:54:57,948 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,959 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:57,974 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:57,975 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:123, output treesize:105 [2018-11-23 13:54:58,090 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 93 treesize of output 174 [2018-11-23 13:54:58,093 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-23 13:54:58,094 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:58,164 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 38 [2018-11-23 13:54:58,165 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:58,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 62 [2018-11-23 13:54:58,203 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:58,231 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:54:58,264 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 22 [2018-11-23 13:54:58,266 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-23 13:54:58,266 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:58,268 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:58,305 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 142 [2018-11-23 13:54:58,308 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 67 [2018-11-23 13:54:58,308 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:58,320 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:58,347 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 230 treesize of output 176 [2018-11-23 13:54:58,353 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 215 [2018-11-23 13:54:58,354 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:58,521 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 139 treesize of output 183 [2018-11-23 13:54:58,522 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:58,568 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:54:58,612 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-11-23 13:54:58,612 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 6 variables, input treesize:307, output treesize:291 [2018-11-23 13:54:58,795 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 194 [2018-11-23 13:54:58,802 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 172 [2018-11-23 13:54:58,802 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-23 13:54:58,872 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 183 [2018-11-23 13:54:58,872 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:58,941 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 176 [2018-11-23 13:54:58,941 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:59,006 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 13:54:59,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 106 [2018-11-23 13:54:59,093 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 13:54:59,093 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:59,106 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 13:54:59,106 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:59,116 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:59,193 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 9 dim-0 vars, and 4 xjuncts. [2018-11-23 13:54:59,194 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:309, output treesize:755 [2018-11-23 13:54:59,321 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 49 [2018-11-23 13:54:59,323 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 18 [2018-11-23 13:54:59,323 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:59,332 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2018-11-23 13:54:59,332 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:59,338 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:59,351 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:54:59,353 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:54:59,353 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:54:59,354 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:54:59,364 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:54:59,364 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:104, output treesize:18 [2018-11-23 13:54:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:54:59,460 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:54:59,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2018-11-23 13:54:59,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-11-23 13:54:59,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-11-23 13:54:59,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1436, Unknown=0, NotChecked=0, Total=1560 [2018-11-23 13:54:59,461 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand 40 states. [2018-11-23 13:55:03,497 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 133 [2018-11-23 13:55:03,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:55:03,620 INFO L93 Difference]: Finished difference Result 301 states and 311 transitions. [2018-11-23 13:55:03,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-11-23 13:55:03,621 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 43 [2018-11-23 13:55:03,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:55:03,621 INFO L225 Difference]: With dead ends: 301 [2018-11-23 13:55:03,621 INFO L226 Difference]: Without dead ends: 301 [2018-11-23 13:55:03,622 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1236 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=644, Invalid=4906, Unknown=0, NotChecked=0, Total=5550 [2018-11-23 13:55:03,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2018-11-23 13:55:03,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 152. [2018-11-23 13:55:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-11-23 13:55:03,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 161 transitions. [2018-11-23 13:55:03,624 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 161 transitions. Word has length 43 [2018-11-23 13:55:03,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:55:03,625 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 161 transitions. [2018-11-23 13:55:03,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-11-23 13:55:03,625 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 161 transitions. [2018-11-23 13:55:03,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-23 13:55:03,625 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:55:03,625 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:55:03,626 INFO L423 AbstractCegarLoop]: === Iteration 35 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:55:03,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:55:03,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1613467279, now seen corresponding path program 2 times [2018-11-23 13:55:03,626 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:55:03,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:55:03,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:55:03,627 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:55:03,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:55:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:55:03,945 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:55:03,945 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:55:03,945 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:55:03,957 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 13:55:03,991 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 13:55:03,991 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:55:03,994 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:55:04,006 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,007 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,007 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:55:04,008 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,014 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,015 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-11-23 13:55:04,038 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:55:04,039 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:04,040 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,041 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,051 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:55:04,052 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:04,052 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,053 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,061 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,061 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:46, output treesize:39 [2018-11-23 13:55:04,135 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,138 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2018-11-23 13:55:04,140 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:55:04,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,144 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,154 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,156 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:55:04,158 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:04,158 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,164 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,171 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,171 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:85, output treesize:43 [2018-11-23 13:55:04,193 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,196 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2018-11-23 13:55:04,198 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:55:04,198 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,202 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,212 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,215 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:55:04,216 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:04,216 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,220 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,227 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,227 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:85, output treesize:43 [2018-11-23 13:55:04,248 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,249 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,249 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,250 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 13:55:04,250 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,260 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:55:04,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:61, output treesize:53 [2018-11-23 13:55:04,298 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,300 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,301 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 45 [2018-11-23 13:55:04,303 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-11-23 13:55:04,303 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,309 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,322 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 31 [2018-11-23 13:55:04,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-23 13:55:04,326 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,330 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,341 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,341 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:78, output treesize:68 [2018-11-23 13:55:04,407 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,408 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,414 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 194 treesize of output 165 [2018-11-23 13:55:04,416 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-11-23 13:55:04,416 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,430 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,450 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 18 [2018-11-23 13:55:04,452 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-11-23 13:55:04,452 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,454 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,471 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,477 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 105 [2018-11-23 13:55:04,478 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-11-23 13:55:04,478 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,485 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,498 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:04,498 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:214, output treesize:116 [2018-11-23 13:55:04,574 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,575 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 34 [2018-11-23 13:55:04,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 13:55:04,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,584 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:55:04,584 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2018-11-23 13:55:04,585 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,589 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:04,601 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:133, output treesize:99 [2018-11-23 13:55:04,678 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,679 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:55:04,680 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:04,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 69 [2018-11-23 13:55:04,682 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:55:04,687 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 49 [2018-11-23 13:55:04,687 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:55:04,701 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 34 [2018-11-23 13:55:04,701 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,706 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,714 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:04,714 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:100, output treesize:25 [2018-11-23 13:55:04,767 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2018-11-23 13:55:04,767 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:04,772 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 13:55:04,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-11-23 13:55:04,776 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 13:55:04,779 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:55:04,783 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:55:04,783 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:41, output treesize:21 [2018-11-23 13:55:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:55:04,859 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:55:04,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 37 [2018-11-23 13:55:04,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-11-23 13:55:04,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-11-23 13:55:04,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1220, Unknown=2, NotChecked=0, Total=1332 [2018-11-23 13:55:04,860 INFO L87 Difference]: Start difference. First operand 152 states and 161 transitions. Second operand 37 states. [2018-11-23 13:55:07,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:55:07,337 INFO L93 Difference]: Finished difference Result 242 states and 250 transitions. [2018-11-23 13:55:07,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-23 13:55:07,337 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 49 [2018-11-23 13:55:07,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:55:07,338 INFO L225 Difference]: With dead ends: 242 [2018-11-23 13:55:07,338 INFO L226 Difference]: Without dead ends: 242 [2018-11-23 13:55:07,338 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 34 SyntacticMatches, 6 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 859 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=471, Invalid=3681, Unknown=8, NotChecked=0, Total=4160 [2018-11-23 13:55:07,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-11-23 13:55:07,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 177. [2018-11-23 13:55:07,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-11-23 13:55:07,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 193 transitions. [2018-11-23 13:55:07,342 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 193 transitions. Word has length 49 [2018-11-23 13:55:07,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:55:07,342 INFO L480 AbstractCegarLoop]: Abstraction has 177 states and 193 transitions. [2018-11-23 13:55:07,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-11-23 13:55:07,342 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 193 transitions. [2018-11-23 13:55:07,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-23 13:55:07,343 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:55:07,343 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:55:07,343 INFO L423 AbstractCegarLoop]: === Iteration 36 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:55:07,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:55:07,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1646079089, now seen corresponding path program 4 times [2018-11-23 13:55:07,343 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:55:07,343 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:55:07,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:55:07,344 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:55:07,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:55:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:55:07,699 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:55:07,699 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:55:07,699 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:55:07,705 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 13:55:07,723 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 13:55:07,724 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:55:07,726 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:55:07,748 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:07,749 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:07,750 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:55:07,750 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,756 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,756 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-11-23 13:55:07,774 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:55:07,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:07,776 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,778 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,786 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:55:07,788 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:07,788 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,789 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,795 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,796 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:29 [2018-11-23 13:55:07,851 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:07,854 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:55:07,856 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:07,856 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,860 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,870 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:55:07,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:55:07,871 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,874 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,879 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,879 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:75, output treesize:33 [2018-11-23 13:55:07,896 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:07,899 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:55:07,901 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:07,901 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,905 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,915 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:55:07,916 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:55:07,916 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,919 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,924 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,924 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:75, output treesize:33 [2018-11-23 13:55:07,941 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:07,941 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:07,942 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:07,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 13:55:07,942 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,950 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:55:07,951 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,957 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,957 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:43 [2018-11-23 13:55:07,980 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:07,983 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-11-23 13:55:07,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:55:07,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:07,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,003 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-23 13:55:08,004 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:55:08,005 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,009 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,018 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,018 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:65, output treesize:75 [2018-11-23 13:55:08,070 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 22 [2018-11-23 13:55:08,072 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-23 13:55:08,072 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,074 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,096 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 230 [2018-11-23 13:55:08,098 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:55:08,098 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,110 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,127 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 154 [2018-11-23 13:55:08,129 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:55:08,129 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,139 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,148 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:08,148 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:258, output treesize:132 [2018-11-23 13:55:08,224 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 111 [2018-11-23 13:55:08,226 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 84 [2018-11-23 13:55:08,226 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,239 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 13:55:08,240 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,248 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,259 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:08,259 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:146, output treesize:92 [2018-11-23 13:55:08,346 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 58 [2018-11-23 13:55:08,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 32 [2018-11-23 13:55:08,348 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,357 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-23 13:55:08,357 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,361 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:08,367 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:96, output treesize:25 [2018-11-23 13:55:08,426 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 7 [2018-11-23 13:55:08,426 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:08,430 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:08,430 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:19 [2018-11-23 13:55:08,458 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 13:55:08,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-11-23 13:55:08,462 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-23 13:55:08,464 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:55:08,469 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:55:08,470 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:21 [2018-11-23 13:55:08,534 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:55:08,548 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:55:08,548 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 40 [2018-11-23 13:55:08,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-11-23 13:55:08,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-11-23 13:55:08,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1441, Unknown=0, NotChecked=0, Total=1560 [2018-11-23 13:55:08,549 INFO L87 Difference]: Start difference. First operand 177 states and 193 transitions. Second operand 40 states. [2018-11-23 13:55:10,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:55:10,585 INFO L93 Difference]: Finished difference Result 210 states and 216 transitions. [2018-11-23 13:55:10,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-23 13:55:10,586 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 49 [2018-11-23 13:55:10,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:55:10,586 INFO L225 Difference]: With dead ends: 210 [2018-11-23 13:55:10,586 INFO L226 Difference]: Without dead ends: 201 [2018-11-23 13:55:10,587 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 839 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=375, Invalid=3047, Unknown=0, NotChecked=0, Total=3422 [2018-11-23 13:55:10,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2018-11-23 13:55:10,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 152. [2018-11-23 13:55:10,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-11-23 13:55:10,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 160 transitions. [2018-11-23 13:55:10,589 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 160 transitions. Word has length 49 [2018-11-23 13:55:10,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:55:10,590 INFO L480 AbstractCegarLoop]: Abstraction has 152 states and 160 transitions. [2018-11-23 13:55:10,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-11-23 13:55:10,590 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 160 transitions. [2018-11-23 13:55:10,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-23 13:55:10,590 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:55:10,590 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:55:10,590 INFO L423 AbstractCegarLoop]: === Iteration 37 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:55:10,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:55:10,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1262845011, now seen corresponding path program 3 times [2018-11-23 13:55:10,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:55:10,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:55:10,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:55:10,591 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:55:10,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:55:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:55:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:55:10,888 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:55:10,888 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:55:10,897 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-23 13:55:10,944 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-23 13:55:10,944 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:55:10,947 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:55:10,998 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:10,999 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,000 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:55:11,000 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,006 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,006 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-11-23 13:55:11,031 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:55:11,033 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:11,033 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,034 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,044 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:55:11,045 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:11,046 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,047 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,054 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,054 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:32 [2018-11-23 13:55:11,131 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,134 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:55:11,135 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:11,136 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,141 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,151 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:55:11,153 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:55:11,153 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,156 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,162 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,162 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:78, output treesize:36 [2018-11-23 13:55:11,185 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,186 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,187 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,187 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 13:55:11,187 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,198 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:54, output treesize:60 [2018-11-23 13:55:11,233 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-23 13:55:11,237 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:55:11,238 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,241 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,256 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,259 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 60 [2018-11-23 13:55:11,260 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:55:11,260 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,267 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,280 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,280 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:82, output treesize:92 [2018-11-23 13:55:11,394 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,395 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,401 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 135 [2018-11-23 13:55:11,403 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:11,403 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,415 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,430 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,435 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 115 [2018-11-23 13:55:11,436 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:11,436 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,446 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,458 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,458 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:162, output treesize:100 [2018-11-23 13:55:11,492 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,493 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,499 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 135 [2018-11-23 13:55:11,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:11,502 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,515 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,533 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,534 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,540 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 135 [2018-11-23 13:55:11,542 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:11,543 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,553 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,566 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:162, output treesize:112 [2018-11-23 13:55:11,600 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,600 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,601 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,602 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,602 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 73 [2018-11-23 13:55:11,603 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,619 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:55:11,620 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,635 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,635 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:138, output treesize:129 [2018-11-23 13:55:11,678 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,679 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,685 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,687 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 134 [2018-11-23 13:55:11,689 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-11-23 13:55:11,689 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,714 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,736 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,737 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,742 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 110 [2018-11-23 13:55:11,744 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:11,744 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,754 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,772 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,772 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:159, output treesize:141 [2018-11-23 13:55:11,866 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2018-11-23 13:55:11,869 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2018-11-23 13:55:11,869 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,871 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,905 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,911 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,916 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 393 treesize of output 263 [2018-11-23 13:55:11,919 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-11-23 13:55:11,919 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,945 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:11,973 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:11,983 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 318 treesize of output 317 [2018-11-23 13:55:11,986 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-11-23 13:55:11,986 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,005 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,027 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:12,027 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:419, output treesize:265 [2018-11-23 13:55:12,139 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:12,141 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 258 treesize of output 229 [2018-11-23 13:55:12,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 13:55:12,144 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,164 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:55:12,164 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 184 treesize of output 160 [2018-11-23 13:55:12,164 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,180 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-11-23 13:55:12,180 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,191 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,208 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:12,208 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:282, output treesize:177 [2018-11-23 13:55:12,317 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:12,324 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 25 [2018-11-23 13:55:12,325 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,344 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 31 [2018-11-23 13:55:12,346 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 13:55:12,346 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,350 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 13:55:12,350 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,351 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,364 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:12,364 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:193, output treesize:113 [2018-11-23 13:55:12,415 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:12,415 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:12,416 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:55:12,418 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:12,419 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 82 [2018-11-23 13:55:12,421 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 22 [2018-11-23 13:55:12,421 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,431 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-11-23 13:55:12,431 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,436 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:55:12,436 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 12 [2018-11-23 13:55:12,436 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,439 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,445 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:12,445 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:124, output treesize:5 [2018-11-23 13:55:12,470 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:55:12,485 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:55:12,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 42 [2018-11-23 13:55:12,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-11-23 13:55:12,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-11-23 13:55:12,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1627, Unknown=0, NotChecked=0, Total=1806 [2018-11-23 13:55:12,486 INFO L87 Difference]: Start difference. First operand 152 states and 160 transitions. Second operand 43 states. [2018-11-23 13:55:14,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:55:14,736 INFO L93 Difference]: Finished difference Result 216 states and 225 transitions. [2018-11-23 13:55:14,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-23 13:55:14,737 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 50 [2018-11-23 13:55:14,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:55:14,737 INFO L225 Difference]: With dead ends: 216 [2018-11-23 13:55:14,737 INFO L226 Difference]: Without dead ends: 216 [2018-11-23 13:55:14,738 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=552, Invalid=3738, Unknown=0, NotChecked=0, Total=4290 [2018-11-23 13:55:14,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-11-23 13:55:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 154. [2018-11-23 13:55:14,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-11-23 13:55:14,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 163 transitions. [2018-11-23 13:55:14,740 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 163 transitions. Word has length 50 [2018-11-23 13:55:14,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:55:14,741 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 163 transitions. [2018-11-23 13:55:14,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-11-23 13:55:14,741 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 163 transitions. [2018-11-23 13:55:14,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-23 13:55:14,741 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:55:14,741 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:55:14,742 INFO L423 AbstractCegarLoop]: === Iteration 38 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:55:14,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:55:14,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1262845010, now seen corresponding path program 2 times [2018-11-23 13:55:14,742 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:55:14,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:55:14,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:55:14,743 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:55:14,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:55:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:55:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:55:15,100 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:55:15,100 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:55:15,109 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 13:55:15,138 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 13:55:15,138 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:55:15,142 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:55:15,214 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,215 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,216 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:55:15,216 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,224 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,224 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-11-23 13:55:15,254 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:55:15,256 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:15,256 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,258 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,269 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:55:15,272 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:15,272 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,274 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,282 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,283 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:32 [2018-11-23 13:55:15,370 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,373 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:55:15,374 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:15,374 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,379 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,389 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:55:15,390 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:55:15,391 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,393 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,399 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,399 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:78, output treesize:36 [2018-11-23 13:55:15,424 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,424 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,425 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,426 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 13:55:15,426 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,436 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,436 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:54, output treesize:60 [2018-11-23 13:55:15,473 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,476 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:55:15,478 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:55:15,478 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,484 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,500 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 35 [2018-11-23 13:55:15,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:55:15,501 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,506 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,518 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,518 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:82, output treesize:92 [2018-11-23 13:55:15,639 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,639 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,645 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 135 [2018-11-23 13:55:15,647 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:15,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,657 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,673 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,678 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 123 [2018-11-23 13:55:15,680 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:15,680 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,690 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,700 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,701 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:162, output treesize:112 [2018-11-23 13:55:15,735 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,735 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,741 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 135 [2018-11-23 13:55:15,743 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:15,743 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,754 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,771 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 119 [2018-11-23 13:55:15,778 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:15,778 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,786 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,798 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,799 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:169, output treesize:119 [2018-11-23 13:55:15,846 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,846 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,847 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,848 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,848 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 73 [2018-11-23 13:55:15,848 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,867 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 29 [2018-11-23 13:55:15,867 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,883 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,883 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:133, output treesize:148 [2018-11-23 13:55:15,930 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,931 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,936 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 145 [2018-11-23 13:55:15,938 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:15,938 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,952 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,973 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:15,978 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 124 [2018-11-23 13:55:15,980 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:15,980 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:15,993 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,011 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,012 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:170, output treesize:144 [2018-11-23 13:55:16,148 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 423 treesize of output 406 [2018-11-23 13:55:16,151 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-11-23 13:55:16,151 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,182 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,229 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 364 treesize of output 234 [2018-11-23 13:55:16,232 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-11-23 13:55:16,233 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,256 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,282 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2018-11-23 13:55:16,284 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2018-11-23 13:55:16,284 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,286 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,308 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:16,308 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:434, output treesize:280 [2018-11-23 13:55:16,881 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:16,882 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:16,885 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:16,885 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 70 [2018-11-23 13:55:16,891 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 17 [2018-11-23 13:55:16,892 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,899 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 13:55:16,899 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,902 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 13:55:16,902 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:16,929 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:16,929 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:322, output treesize:276 [2018-11-23 13:55:17,004 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:17,005 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:17,007 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:55:17,011 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 294 treesize of output 207 [2018-11-23 13:55:17,013 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:55:17,013 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 68 [2018-11-23 13:55:17,014 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:17,034 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2018-11-23 13:55:17,035 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:17,054 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:55:17,054 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 49 [2018-11-23 13:55:17,055 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:17,072 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:17,094 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 62 [2018-11-23 13:55:17,096 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:55:17,096 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:17,106 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:55:17,106 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2018-11-23 13:55:17,107 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:17,114 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-11-23 13:55:17,114 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:17,118 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:17,131 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:17,131 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:307, output treesize:33 [2018-11-23 13:55:19,242 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:55:19,258 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:55:19,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 27] total 49 [2018-11-23 13:55:19,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-11-23 13:55:19,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-11-23 13:55:19,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=2273, Unknown=1, NotChecked=0, Total=2450 [2018-11-23 13:55:19,259 INFO L87 Difference]: Start difference. First operand 154 states and 163 transitions. Second operand 50 states. [2018-11-23 13:55:33,206 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 96 [2018-11-23 13:55:34,334 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 95 [2018-11-23 13:55:39,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:55:39,023 INFO L93 Difference]: Finished difference Result 251 states and 259 transitions. [2018-11-23 13:55:39,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-11-23 13:55:39,023 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 50 [2018-11-23 13:55:39,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:55:39,024 INFO L225 Difference]: With dead ends: 251 [2018-11-23 13:55:39,024 INFO L226 Difference]: Without dead ends: 251 [2018-11-23 13:55:39,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1613 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=734, Invalid=6225, Unknown=13, NotChecked=0, Total=6972 [2018-11-23 13:55:39,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-11-23 13:55:39,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 161. [2018-11-23 13:55:39,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-11-23 13:55:39,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 174 transitions. [2018-11-23 13:55:39,027 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 174 transitions. Word has length 50 [2018-11-23 13:55:39,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:55:39,027 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 174 transitions. [2018-11-23 13:55:39,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-11-23 13:55:39,027 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 174 transitions. [2018-11-23 13:55:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-23 13:55:39,028 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:55:39,028 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:55:39,028 INFO L423 AbstractCegarLoop]: === Iteration 39 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:55:39,028 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:55:39,028 INFO L82 PathProgramCache]: Analyzing trace with hash -227424083, now seen corresponding path program 5 times [2018-11-23 13:55:39,029 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:55:39,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:55:39,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:55:39,029 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:55:39,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:55:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:55:39,358 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:55:39,358 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:55:39,358 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:55:39,364 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-23 13:55:39,389 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2018-11-23 13:55:39,389 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:55:39,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:55:39,393 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:55:39,393 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,394 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,394 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-23 13:55:39,401 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,402 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:55:39,402 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,409 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-11-23 13:55:39,434 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:55:39,436 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:39,436 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,437 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,446 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:55:39,447 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:39,447 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,448 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,455 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,455 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:43, output treesize:36 [2018-11-23 13:55:39,530 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,533 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:55:39,534 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:39,535 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,550 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2018-11-23 13:55:39,552 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:55:39,552 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,556 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,562 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,562 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:82, output treesize:40 [2018-11-23 13:55:39,585 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,585 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,586 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,586 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 13:55:39,587 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,596 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,597 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:61 [2018-11-23 13:55:39,630 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,633 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:55:39,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:39,635 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,641 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,657 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 31 [2018-11-23 13:55:39,659 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-23 13:55:39,659 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,664 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,676 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,676 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:86, output treesize:72 [2018-11-23 13:55:39,785 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,786 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,794 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 89 [2018-11-23 13:55:39,796 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:39,796 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,807 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,823 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2018-11-23 13:55:39,824 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-23 13:55:39,824 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,829 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:39,839 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:130, output treesize:76 [2018-11-23 13:55:39,874 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,874 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,880 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 89 [2018-11-23 13:55:39,882 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:55:39,882 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,890 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,904 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,907 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2018-11-23 13:55:39,908 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-23 13:55:39,909 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,913 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,923 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:39,923 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:130, output treesize:92 [2018-11-23 13:55:39,957 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,958 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,958 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,961 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:39,961 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 61 [2018-11-23 13:55:39,961 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:39,974 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:39,974 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:97, output treesize:89 [2018-11-23 13:55:40,007 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:40,008 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:40,013 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 79 [2018-11-23 13:55:40,015 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:55:40,015 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,025 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,041 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:55:40,044 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2018-11-23 13:55:40,046 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-11-23 13:55:40,046 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,051 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:40,065 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:116, output treesize:106 [2018-11-23 13:55:40,142 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 220 treesize of output 142 [2018-11-23 13:55:40,145 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:55:40,145 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,156 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,180 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 71 [2018-11-23 13:55:40,182 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:55:40,182 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,186 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,196 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:40,196 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:237, output treesize:127 [2018-11-23 13:55:40,267 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-11-23 13:55:40,268 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-11-23 13:55:40,268 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,271 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,283 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 13:55:40,283 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:141, output treesize:126 [2018-11-23 13:55:40,355 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 65 [2018-11-23 13:55:40,357 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:55:40,357 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-11-23 13:55:40,357 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,365 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-11-23 13:55:40,365 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,370 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-11-23 13:55:40,370 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,372 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,376 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:55:40,376 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:127, output treesize:5 [2018-11-23 13:55:40,398 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:55:40,413 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:55:40,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 38 [2018-11-23 13:55:40,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-11-23 13:55:40,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-11-23 13:55:40,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1343, Unknown=0, NotChecked=0, Total=1482 [2018-11-23 13:55:40,414 INFO L87 Difference]: Start difference. First operand 161 states and 174 transitions. Second operand 39 states. [2018-11-23 13:56:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:56:04,296 INFO L93 Difference]: Finished difference Result 224 states and 236 transitions. [2018-11-23 13:56:04,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-23 13:56:04,296 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 50 [2018-11-23 13:56:04,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:56:04,296 INFO L225 Difference]: With dead ends: 224 [2018-11-23 13:56:04,297 INFO L226 Difference]: Without dead ends: 224 [2018-11-23 13:56:04,297 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=435, Invalid=3221, Unknown=4, NotChecked=0, Total=3660 [2018-11-23 13:56:04,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2018-11-23 13:56:04,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 161. [2018-11-23 13:56:04,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-11-23 13:56:04,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 173 transitions. [2018-11-23 13:56:04,299 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 173 transitions. Word has length 50 [2018-11-23 13:56:04,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:56:04,299 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 173 transitions. [2018-11-23 13:56:04,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-11-23 13:56:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 173 transitions. [2018-11-23 13:56:04,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-23 13:56:04,299 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:56:04,299 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:56:04,299 INFO L423 AbstractCegarLoop]: === Iteration 40 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:56:04,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:56:04,299 INFO L82 PathProgramCache]: Analyzing trace with hash -227424082, now seen corresponding path program 4 times [2018-11-23 13:56:04,300 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:56:04,300 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:56:04,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:56:04,300 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:56:04,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:56:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:56:04,701 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:56:04,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:56:04,701 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:56:04,717 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 13:56:04,738 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 13:56:04,738 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:56:04,741 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:56:04,755 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:04,755 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:04,756 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:56:04,756 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,761 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,761 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-11-23 13:56:04,785 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:56:04,786 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:04,786 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,788 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,797 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:56:04,798 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:04,798 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,800 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,806 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,807 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:29 [2018-11-23 13:56:04,862 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:56:04,864 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:56:04,864 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,868 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,878 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:56:04,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:04,879 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,882 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,887 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:67, output treesize:29 [2018-11-23 13:56:04,894 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:04,895 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:04,896 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:04,896 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 42 [2018-11-23 13:56:04,896 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,907 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:49 [2018-11-23 13:56:04,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-23 13:56:04,943 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:56:04,943 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,948 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,963 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-11-23 13:56:04,964 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:56:04,964 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,970 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,979 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:04,980 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:73, output treesize:85 [2018-11-23 13:56:05,080 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:05,081 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:05,086 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 120 [2018-11-23 13:56:05,088 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:05,088 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,098 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,112 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:05,117 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 104 [2018-11-23 13:56:05,119 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:05,119 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,128 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,137 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,137 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:151, output treesize:89 [2018-11-23 13:56:05,184 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 92 [2018-11-23 13:56:05,186 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:05,186 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,197 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,217 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 84 [2018-11-23 13:56:05,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:05,219 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,225 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,234 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,235 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:127, output treesize:89 [2018-11-23 13:56:05,237 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:05,238 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 29 [2018-11-23 13:56:05,239 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,254 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:05,254 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:05,255 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:05,256 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:05,256 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 73 [2018-11-23 13:56:05,256 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,270 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,270 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:100, output treesize:115 [2018-11-23 13:56:05,308 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:05,315 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 113 [2018-11-23 13:56:05,317 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:05,317 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,329 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,346 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:05,351 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 114 [2018-11-23 13:56:05,353 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:05,353 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,363 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,377 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,378 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:140, output treesize:134 [2018-11-23 13:56:05,468 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 188 [2018-11-23 13:56:05,470 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-11-23 13:56:05,470 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,485 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,506 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 227 [2018-11-23 13:56:05,508 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-11-23 13:56:05,509 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,519 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,531 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:05,531 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:313, output treesize:179 [2018-11-23 13:56:05,739 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 115 [2018-11-23 13:56:05,742 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 24 [2018-11-23 13:56:05,742 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,756 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2018-11-23 13:56:05,757 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:05,770 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2018-11-23 13:56:05,770 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:05,780 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:05,792 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 13:56:05,793 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 13:56:05,793 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,797 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:05,806 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:05,806 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:209, output treesize:18 [2018-11-23 13:56:05,885 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:56:05,900 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:56:05,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 40 [2018-11-23 13:56:05,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-11-23 13:56:05,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-11-23 13:56:05,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1521, Unknown=0, NotChecked=0, Total=1640 [2018-11-23 13:56:05,901 INFO L87 Difference]: Start difference. First operand 161 states and 173 transitions. Second operand 41 states. [2018-11-23 13:56:08,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:56:08,916 INFO L93 Difference]: Finished difference Result 240 states and 249 transitions. [2018-11-23 13:56:08,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-23 13:56:08,917 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 50 [2018-11-23 13:56:08,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:56:08,917 INFO L225 Difference]: With dead ends: 240 [2018-11-23 13:56:08,918 INFO L226 Difference]: Without dead ends: 240 [2018-11-23 13:56:08,918 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=399, Invalid=3761, Unknown=0, NotChecked=0, Total=4160 [2018-11-23 13:56:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2018-11-23 13:56:08,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 161. [2018-11-23 13:56:08,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-11-23 13:56:08,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 171 transitions. [2018-11-23 13:56:08,920 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 171 transitions. Word has length 50 [2018-11-23 13:56:08,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:56:08,921 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 171 transitions. [2018-11-23 13:56:08,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-11-23 13:56:08,921 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 171 transitions. [2018-11-23 13:56:08,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-23 13:56:08,921 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:56:08,921 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:56:08,921 INFO L423 AbstractCegarLoop]: === Iteration 41 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:56:08,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:56:08,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1622521399, now seen corresponding path program 6 times [2018-11-23 13:56:08,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:56:08,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:56:08,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:56:08,923 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:56:08,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:56:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:56:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:56:09,294 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:56:09,294 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:56:09,302 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-23 13:56:09,496 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-11-23 13:56:09,496 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:56:09,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:56:09,549 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,550 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,550 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:56:09,550 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,554 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,554 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2018-11-23 13:56:09,571 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:56:09,572 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:09,572 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,577 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,586 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,586 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:23 [2018-11-23 13:56:09,650 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,653 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-11-23 13:56:09,654 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:09,654 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,658 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,661 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,661 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:43, output treesize:20 [2018-11-23 13:56:09,680 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,681 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,681 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:56:09,681 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,689 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,689 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:33 [2018-11-23 13:56:09,723 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,725 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:56:09,727 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:09,727 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,733 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,742 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,742 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:42 [2018-11-23 13:56:09,837 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,849 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 80 [2018-11-23 13:56:09,852 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 66 [2018-11-23 13:56:09,852 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,880 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 34 [2018-11-23 13:56:09,881 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 13:56:09,900 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:56:09,914 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:56:09,914 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:81, output treesize:84 [2018-11-23 13:56:09,960 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,961 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,962 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,963 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,963 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 101 [2018-11-23 13:56:09,964 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:09,988 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,988 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,989 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:09,989 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 60 [2018-11-23 13:56:09,990 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,016 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:56:10,016 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:106, output treesize:130 [2018-11-23 13:56:10,085 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 97 [2018-11-23 13:56:10,088 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 98 [2018-11-23 13:56:10,088 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 56 [2018-11-23 13:56:10,145 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 13:56:10,180 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:56:10,221 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 54 [2018-11-23 13:56:10,222 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:10,223 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,231 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,266 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-11-23 13:56:10,266 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:152, output treesize:208 [2018-11-23 13:56:10,465 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,466 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,467 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,477 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 162 treesize of output 141 [2018-11-23 13:56:10,478 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:10,479 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,493 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,521 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,522 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,527 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 97 [2018-11-23 13:56:10,528 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:10,529 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,538 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,561 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-23 13:56:10,562 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:260, output treesize:190 [2018-11-23 13:56:10,608 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,609 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,614 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 97 [2018-11-23 13:56:10,616 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:10,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,627 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,656 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,657 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,658 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,667 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 162 treesize of output 141 [2018-11-23 13:56:10,669 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:10,669 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,684 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,708 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-23 13:56:10,708 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:260, output treesize:190 [2018-11-23 13:56:10,755 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 86 [2018-11-23 13:56:10,755 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,790 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 151 [2018-11-23 13:56:10,790 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,821 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-23 13:56:10,821 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:240, output treesize:238 [2018-11-23 13:56:10,891 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,892 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,893 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,904 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 175 treesize of output 154 [2018-11-23 13:56:10,906 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:10,906 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,927 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,968 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,969 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:10,974 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 105 [2018-11-23 13:56:10,976 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:10,976 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:10,991 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:11,029 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 98 [2018-11-23 13:56:11,031 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-11-23 13:56:11,031 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:11,043 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:11,046 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 139 [2018-11-23 13:56:11,048 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:56:11,048 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:11,064 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:11,098 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-2 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-23 13:56:11,098 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 7 variables, input treesize:286, output treesize:230 [2018-11-23 13:56:11,171 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 94 [2018-11-23 13:56:11,173 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:56:11,173 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:11,182 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:11,211 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 159 [2018-11-23 13:56:11,213 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:56:11,213 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:11,227 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:11,257 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-11-23 13:56:11,257 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:302, output treesize:240 [2018-11-23 13:56:11,375 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 91 treesize of output 115 [2018-11-23 13:56:11,375 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-23 13:56:11,386 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-23 13:56:11,386 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:12,718 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 86 [2018-11-23 13:56:12,718 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:56:12,858 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 76 [2018-11-23 13:56:12,858 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:12,967 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 58 [2018-11-23 13:56:12,968 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:56:13,055 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:13,218 INFO L267 ElimStorePlain]: Start of recursive call 2: 14 dim-1 vars, End of recursive call: 3 dim-0 vars, and 7 xjuncts. [2018-11-23 13:56:13,310 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:56:13,312 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:13,312 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:13,315 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:13,402 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 16 dim-0 vars, and 7 xjuncts. [2018-11-23 13:56:13,402 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:110, output treesize:697 [2018-11-23 13:56:13,930 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 72 [2018-11-23 13:56:13,932 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-23 13:56:13,932 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:13,943 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:13,992 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 112 [2018-11-23 13:56:13,995 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 92 [2018-11-23 13:56:13,995 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:14,028 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 98 [2018-11-23 13:56:14,029 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-23 13:56:14,067 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 13:56:14,127 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 87 [2018-11-23 13:56:14,129 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-23 13:56:14,129 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:14,137 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:14,191 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 3 dim-2 vars, End of recursive call: 9 dim-0 vars, and 5 xjuncts. [2018-11-23 13:56:14,192 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 9 variables, input treesize:294, output treesize:397 [2018-11-23 13:56:14,375 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 56 [2018-11-23 13:56:14,377 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:56:14,377 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2018-11-23 13:56:14,377 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:14,386 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2018-11-23 13:56:14,386 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:14,392 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:14,410 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 56 [2018-11-23 13:56:14,411 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:56:14,412 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2018-11-23 13:56:14,412 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:14,422 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-11-23 13:56:14,423 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:14,430 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:14,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-11-23 13:56:14,444 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 9 variables, input treesize:140, output treesize:62 [2018-11-23 13:56:14,538 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:56:14,554 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:56:14,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 28] total 51 [2018-11-23 13:56:14,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-11-23 13:56:14,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-11-23 13:56:14,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=2365, Unknown=0, NotChecked=0, Total=2652 [2018-11-23 13:56:14,555 INFO L87 Difference]: Start difference. First operand 161 states and 171 transitions. Second operand 52 states. [2018-11-23 13:56:17,154 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 87 [2018-11-23 13:56:17,485 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 86 [2018-11-23 13:56:17,835 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 90 [2018-11-23 13:56:18,377 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 89 [2018-11-23 13:56:19,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:56:19,788 INFO L93 Difference]: Finished difference Result 271 states and 283 transitions. [2018-11-23 13:56:19,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-11-23 13:56:19,788 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 51 [2018-11-23 13:56:19,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:56:19,789 INFO L225 Difference]: With dead ends: 271 [2018-11-23 13:56:19,789 INFO L226 Difference]: Without dead ends: 271 [2018-11-23 13:56:19,789 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3745 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1817, Invalid=10167, Unknown=6, NotChecked=0, Total=11990 [2018-11-23 13:56:19,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2018-11-23 13:56:19,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 167. [2018-11-23 13:56:19,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-11-23 13:56:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 178 transitions. [2018-11-23 13:56:19,792 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 178 transitions. Word has length 51 [2018-11-23 13:56:19,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:56:19,792 INFO L480 AbstractCegarLoop]: Abstraction has 167 states and 178 transitions. [2018-11-23 13:56:19,792 INFO L481 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-11-23 13:56:19,792 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 178 transitions. [2018-11-23 13:56:19,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-23 13:56:19,793 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:56:19,793 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:56:19,793 INFO L423 AbstractCegarLoop]: === Iteration 42 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:56:19,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:56:19,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1622521398, now seen corresponding path program 5 times [2018-11-23 13:56:19,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:56:19,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:56:19,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:56:19,794 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:56:19,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:56:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:56:20,220 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 13:56:20,221 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:56:20,221 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:56:20,229 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-23 13:56:20,290 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-11-23 13:56:20,291 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:56:20,294 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:56:20,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:56:20,296 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,302 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,302 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:56:20,344 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:56:20,344 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,355 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,355 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,356 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:56:20,356 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,365 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:32 [2018-11-23 13:56:20,397 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:56:20,399 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:20,399 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,401 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,411 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:56:20,413 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:20,413 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,414 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,423 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,423 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:51, output treesize:48 [2018-11-23 13:56:20,500 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,503 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 54 [2018-11-23 13:56:20,505 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:20,505 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,511 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,524 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2018-11-23 13:56:20,526 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:56:20,526 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,530 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,538 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,538 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:94, output treesize:52 [2018-11-23 13:56:20,560 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-11-23 13:56:20,561 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,575 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,576 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,577 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 13:56:20,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,591 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,591 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:73, output treesize:78 [2018-11-23 13:56:20,627 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,629 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,630 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 63 [2018-11-23 13:56:20,632 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-11-23 13:56:20,632 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,647 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,667 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,669 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 31 [2018-11-23 13:56:20,671 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-23 13:56:20,671 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,676 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,691 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:108, output treesize:85 [2018-11-23 13:56:20,798 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,799 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,800 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,804 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,807 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 115 [2018-11-23 13:56:20,809 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:20,809 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,821 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,839 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,842 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2018-11-23 13:56:20,844 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-23 13:56:20,844 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,849 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,861 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:20,862 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:147, output treesize:109 [2018-11-23 13:56:20,896 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,897 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,897 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 64 [2018-11-23 13:56:20,897 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,917 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,918 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,919 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,919 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,920 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,920 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 61 [2018-11-23 13:56:20,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,936 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:20,936 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:120, output treesize:111 [2018-11-23 13:56:20,972 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:20,976 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2018-11-23 13:56:20,978 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-11-23 13:56:20,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:20,983 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,005 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,005 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,006 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,010 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,012 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 116 [2018-11-23 13:56:21,014 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:21,014 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,029 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,047 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:21,047 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:133, output treesize:119 [2018-11-23 13:56:21,158 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,161 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 47 [2018-11-23 13:56:21,163 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-23 13:56:21,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,168 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,189 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,190 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,191 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,192 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,194 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 153 [2018-11-23 13:56:21,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:21,202 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,218 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,233 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:21,233 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:201, output treesize:151 [2018-11-23 13:56:21,271 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,276 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 47 [2018-11-23 13:56:21,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-23 13:56:21,278 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,284 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,306 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,307 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,307 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,308 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,312 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,317 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 153 [2018-11-23 13:56:21,319 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:56:21,319 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,335 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,349 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:21,350 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:201, output treesize:151 [2018-11-23 13:56:21,385 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 105 [2018-11-23 13:56:21,386 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:21,404 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:172, output treesize:171 [2018-11-23 13:56:21,455 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,458 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 39 [2018-11-23 13:56:21,460 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:56:21,460 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,466 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,491 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,491 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,492 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,493 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,497 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,501 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 156 [2018-11-23 13:56:21,503 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:56:21,503 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,523 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:56:21,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:56:21,544 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:193, output treesize:179 [2018-11-23 13:56:21,646 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,659 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:56:21,704 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 12 case distinctions, treesize of input 321 treesize of output 224 [2018-11-23 13:56:21,705 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-11-23 13:56:21,767 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:57:20,499 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:57:40,604 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 188 treesize of output 184 [2018-11-23 13:57:40,605 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:57:48,542 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 228 treesize of output 258 [2018-11-23 13:57:48,543 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-11-23 13:57:55,369 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 254 [2018-11-23 13:57:55,369 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:56,718 INFO L267 ElimStorePlain]: Start of recursive call 2: 14 dim-1 vars, End of recursive call: 2 dim-0 vars, and 6 xjuncts. [2018-11-23 13:57:57,394 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:57:57,399 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 228 [2018-11-23 13:57:57,402 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-23 13:57:57,402 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:57,426 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:57:57,452 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 268 treesize of output 351 [2018-11-23 13:57:57,457 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:57:57,458 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 290 [2018-11-23 13:57:57,459 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:57,622 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 249 treesize of output 201 [2018-11-23 13:57:57,622 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:57,715 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 235 treesize of output 212 [2018-11-23 13:57:57,716 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-11-23 13:57:57,809 INFO L267 ElimStorePlain]: Start of recursive call 10: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:57:57,811 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:57:57,817 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 293 [2018-11-23 13:57:57,819 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:57:57,819 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:57,839 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:57:57,842 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:57:57,848 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 228 treesize of output 245 [2018-11-23 13:57:57,850 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 1 [2018-11-23 13:57:57,851 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:57,872 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:57:57,874 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:57:57,880 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 155 treesize of output 168 [2018-11-23 13:57:57,882 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-23 13:57:57,883 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:57,904 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:57:57,908 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 240 treesize of output 197 [2018-11-23 13:57:57,911 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 12 [2018-11-23 13:57:57,912 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:57,926 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:57:58,086 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 21 dim-0 vars, and 6 xjuncts. [2018-11-23 13:57:58,086 INFO L202 ElimStorePlain]: Needed 21 recursive calls to eliminate 6 variables, input treesize:341, output treesize:1043 [2018-11-23 13:57:58,575 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 163 [2018-11-23 13:57:58,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-23 13:57:58,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:58,595 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:57:58,636 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 125 [2018-11-23 13:57:58,638 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-23 13:57:58,638 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:58,656 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:57:58,695 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-11-23 13:57:58,695 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:297, output treesize:267 [2018-11-23 13:57:58,777 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:57:58,778 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:57:58,782 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 103 [2018-11-23 13:57:58,788 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 25 [2018-11-23 13:57:58,789 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:57:58,809 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2018-11-23 13:57:58,810 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:57:58,827 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 18 [2018-11-23 13:57:58,827 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:58,842 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:57:58,876 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 63 [2018-11-23 13:57:58,877 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-11-23 13:57:58,878 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:58,891 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-11-23 13:57:58,891 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:58,903 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:57:58,932 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:57:58,934 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:57:58,935 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 102 [2018-11-23 13:57:58,940 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2018-11-23 13:57:58,941 INFO L267 ElimStorePlain]: Start of recursive call 10: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-23 13:57:58,963 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 35 [2018-11-23 13:57:58,963 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:57:58,965 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 41 [2018-11-23 13:57:58,965 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:57:58,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 40 [2018-11-23 13:57:58,988 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:58,999 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 52 [2018-11-23 13:57:59,001 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2018-11-23 13:57:59,029 INFO L267 ElimStorePlain]: Start of recursive call 9: 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-11-23 13:57:59,072 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 58 [2018-11-23 13:57:59,073 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-11-23 13:57:59,074 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:59,085 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:57:59,086 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 58 [2018-11-23 13:57:59,088 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-11-23 13:57:59,088 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 13:57:59,099 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:57:59,138 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 4 dim-2 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2018-11-23 13:57:59,139 INFO L202 ElimStorePlain]: Needed 18 recursive calls to eliminate 11 variables, input treesize:281, output treesize:103 [2018-11-23 13:57:59,245 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:57:59,260 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:57:59,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25] total 46 [2018-11-23 13:57:59,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2018-11-23 13:57:59,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2018-11-23 13:57:59,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=1946, Unknown=0, NotChecked=0, Total=2162 [2018-11-23 13:57:59,261 INFO L87 Difference]: Start difference. First operand 167 states and 178 transitions. Second operand 47 states. [2018-11-23 13:58:04,605 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 122 [2018-11-23 13:58:04,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:04,713 INFO L93 Difference]: Finished difference Result 303 states and 314 transitions. [2018-11-23 13:58:04,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-11-23 13:58:04,713 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 51 [2018-11-23 13:58:04,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:04,714 INFO L225 Difference]: With dead ends: 303 [2018-11-23 13:58:04,714 INFO L226 Difference]: Without dead ends: 303 [2018-11-23 13:58:04,715 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 27 SyntacticMatches, 8 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3238 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1163, Invalid=8937, Unknown=0, NotChecked=0, Total=10100 [2018-11-23 13:58:04,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-11-23 13:58:04,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 172. [2018-11-23 13:58:04,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-11-23 13:58:04,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 183 transitions. [2018-11-23 13:58:04,718 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 183 transitions. Word has length 51 [2018-11-23 13:58:04,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:04,718 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 183 transitions. [2018-11-23 13:58:04,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2018-11-23 13:58:04,718 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 183 transitions. [2018-11-23 13:58:04,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-23 13:58:04,719 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:04,719 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:04,719 INFO L423 AbstractCegarLoop]: === Iteration 43 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:58:04,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:04,719 INFO L82 PathProgramCache]: Analyzing trace with hash -218593159, now seen corresponding path program 1 times [2018-11-23 13:58:04,719 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:58:04,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:58:04,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:04,720 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:58:04,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:04,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:04,888 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:58:04,888 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:58:04,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:04,927 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:04,932 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:04,932 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:04,933 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:58:04,933 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:04,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:04,938 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:14 [2018-11-23 13:58:04,941 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:04,943 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:04,943 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:04,945 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:04,954 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:04,955 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:04,956 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:04,961 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:04,976 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:04,976 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:38, output treesize:27 [2018-11-23 13:58:04,982 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 13:58:04,983 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 13:58:04,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:04,984 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:04,987 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:04,988 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:17 [2018-11-23 13:58:05,001 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:58:05,003 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:05,003 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,006 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,010 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,010 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:17 [2018-11-23 13:58:05,015 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:58:05,017 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:05,017 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,020 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,023 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,024 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:36, output treesize:17 [2018-11-23 13:58:05,026 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:05,027 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:05,027 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:58:05,027 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,031 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,032 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:16 [2018-11-23 13:58:05,047 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:05,049 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:05,049 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,050 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,060 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-11-23 13:58:05,061 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:05,062 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,065 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,071 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,071 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:38, output treesize:20 [2018-11-23 13:58:05,083 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 13:58:05,084 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 13:58:05,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,086 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,089 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,089 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:12 [2018-11-23 13:58:05,093 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:58:05,094 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:05,094 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,097 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,099 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,099 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:7 [2018-11-23 13:58:05,108 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:58:05,109 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:58:05,109 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,110 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,111 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,111 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-11-23 13:58:05,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 13:58:05,129 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:58:05,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 18 [2018-11-23 13:58:05,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-23 13:58:05,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-23 13:58:05,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-11-23 13:58:05,130 INFO L87 Difference]: Start difference. First operand 172 states and 183 transitions. Second operand 19 states. [2018-11-23 13:58:05,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:05,630 INFO L93 Difference]: Finished difference Result 221 states and 230 transitions. [2018-11-23 13:58:05,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-23 13:58:05,631 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 52 [2018-11-23 13:58:05,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:05,631 INFO L225 Difference]: With dead ends: 221 [2018-11-23 13:58:05,631 INFO L226 Difference]: Without dead ends: 221 [2018-11-23 13:58:05,631 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=228, Invalid=894, Unknown=0, NotChecked=0, Total=1122 [2018-11-23 13:58:05,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-11-23 13:58:05,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 188. [2018-11-23 13:58:05,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2018-11-23 13:58:05,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 200 transitions. [2018-11-23 13:58:05,633 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 200 transitions. Word has length 52 [2018-11-23 13:58:05,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:05,633 INFO L480 AbstractCegarLoop]: Abstraction has 188 states and 200 transitions. [2018-11-23 13:58:05,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-23 13:58:05,634 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 200 transitions. [2018-11-23 13:58:05,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-23 13:58:05,634 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:05,634 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:05,634 INFO L423 AbstractCegarLoop]: === Iteration 44 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:58:05,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:05,634 INFO L82 PathProgramCache]: Analyzing trace with hash -173866057, now seen corresponding path program 1 times [2018-11-23 13:58:05,634 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:58:05,634 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:58:05,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:05,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:05,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:05,862 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:05,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:58:05,862 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:58:05,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:05,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:05,893 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:05,895 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:05,895 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:58:05,895 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,899 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,899 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:11 [2018-11-23 13:58:05,904 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:05,906 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:05,906 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,909 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,913 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,913 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:20 [2018-11-23 13:58:05,949 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:05,951 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-11-23 13:58:05,952 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:05,953 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,956 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,959 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,959 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:40, output treesize:17 [2018-11-23 13:58:05,974 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:05,976 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-11-23 13:58:05,977 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:05,978 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,981 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,984 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:05,984 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:40, output treesize:17 [2018-11-23 13:58:05,998 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:05,999 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:05,999 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-23 13:58:05,999 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:06,003 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:06,003 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:20 [2018-11-23 13:58:06,020 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:06,022 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:58:06,023 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:06,023 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:06,028 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:06,032 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:06,032 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:20 [2018-11-23 13:58:06,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 62 [2018-11-23 13:58:06,080 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 37 [2018-11-23 13:58:06,080 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:06,097 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 50 [2018-11-23 13:58:06,098 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 13:58:06,105 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:58:06,111 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 13:58:06,111 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:64, output treesize:30 [2018-11-23 13:58:06,169 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 13:58:06,170 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-11-23 13:58:06,170 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:06,172 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:06,174 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:06,175 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:10 [2018-11-23 13:58:06,198 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:06,198 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-11-23 13:58:06,199 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:06,202 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:06,202 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:11 [2018-11-23 13:58:06,222 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:06,236 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:58:06,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 30 [2018-11-23 13:58:06,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-11-23 13:58:06,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-11-23 13:58:06,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=824, Unknown=0, NotChecked=0, Total=930 [2018-11-23 13:58:06,237 INFO L87 Difference]: Start difference. First operand 188 states and 200 transitions. Second operand 31 states. [2018-11-23 13:58:07,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:07,144 INFO L93 Difference]: Finished difference Result 222 states and 231 transitions. [2018-11-23 13:58:07,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-23 13:58:07,144 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 52 [2018-11-23 13:58:07,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:07,145 INFO L225 Difference]: With dead ends: 222 [2018-11-23 13:58:07,145 INFO L226 Difference]: Without dead ends: 222 [2018-11-23 13:58:07,145 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 37 SyntacticMatches, 13 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=457, Invalid=2405, Unknown=0, NotChecked=0, Total=2862 [2018-11-23 13:58:07,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2018-11-23 13:58:07,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 193. [2018-11-23 13:58:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-11-23 13:58:07,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 206 transitions. [2018-11-23 13:58:07,147 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 206 transitions. Word has length 52 [2018-11-23 13:58:07,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:07,147 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 206 transitions. [2018-11-23 13:58:07,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-11-23 13:58:07,147 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 206 transitions. [2018-11-23 13:58:07,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-23 13:58:07,148 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:07,148 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:07,148 INFO L423 AbstractCegarLoop]: === Iteration 45 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:58:07,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:07,148 INFO L82 PathProgramCache]: Analyzing trace with hash -173866056, now seen corresponding path program 1 times [2018-11-23 13:58:07,148 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:58:07,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:58:07,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:07,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:07,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:07,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:07,448 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:58:07,448 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:58:07,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:07,480 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:07,563 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 13:58:07,569 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2018-11-23 13:58:07,569 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:07,570 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:07,576 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-11-23 13:58:07,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2018-11-23 13:58:07,577 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:07,581 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:07,584 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:07,584 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:39, output treesize:13 [2018-11-23 13:58:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 13:58:07,639 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:58:07,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 8] total 28 [2018-11-23 13:58:07,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-11-23 13:58:07,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-11-23 13:58:07,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2018-11-23 13:58:07,640 INFO L87 Difference]: Start difference. First operand 193 states and 206 transitions. Second operand 29 states. [2018-11-23 13:58:08,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:08,835 INFO L93 Difference]: Finished difference Result 247 states and 255 transitions. [2018-11-23 13:58:08,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-11-23 13:58:08,835 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 52 [2018-11-23 13:58:08,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:08,836 INFO L225 Difference]: With dead ends: 247 [2018-11-23 13:58:08,836 INFO L226 Difference]: Without dead ends: 247 [2018-11-23 13:58:08,836 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1106 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=567, Invalid=4125, Unknown=0, NotChecked=0, Total=4692 [2018-11-23 13:58:08,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-11-23 13:58:08,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 197. [2018-11-23 13:58:08,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2018-11-23 13:58:08,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 211 transitions. [2018-11-23 13:58:08,839 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 211 transitions. Word has length 52 [2018-11-23 13:58:08,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:08,839 INFO L480 AbstractCegarLoop]: Abstraction has 197 states and 211 transitions. [2018-11-23 13:58:08,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-11-23 13:58:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 211 transitions. [2018-11-23 13:58:08,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-23 13:58:08,840 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:08,840 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:08,840 INFO L423 AbstractCegarLoop]: === Iteration 46 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:58:08,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:08,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1813546898, now seen corresponding path program 1 times [2018-11-23 13:58:08,840 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:58:08,840 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:58:08,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:08,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:08,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:08,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 13:58:08,914 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:58:08,914 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:58:08,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:08,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:08,951 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 13:58:08,952 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-23 13:58:08,952 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:08,953 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:08,954 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:08,954 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2018-11-23 13:58:08,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 13:58:08,972 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:58:08,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 8 [2018-11-23 13:58:08,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 13:58:08,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 13:58:08,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-23 13:58:08,973 INFO L87 Difference]: Start difference. First operand 197 states and 211 transitions. Second operand 9 states. [2018-11-23 13:58:09,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:09,114 INFO L93 Difference]: Finished difference Result 215 states and 228 transitions. [2018-11-23 13:58:09,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 13:58:09,114 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2018-11-23 13:58:09,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:09,114 INFO L225 Difference]: With dead ends: 215 [2018-11-23 13:58:09,114 INFO L226 Difference]: Without dead ends: 215 [2018-11-23 13:58:09,114 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-11-23 13:58:09,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-11-23 13:58:09,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 203. [2018-11-23 13:58:09,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-11-23 13:58:09,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 218 transitions. [2018-11-23 13:58:09,116 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 218 transitions. Word has length 53 [2018-11-23 13:58:09,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:09,116 INFO L480 AbstractCegarLoop]: Abstraction has 203 states and 218 transitions. [2018-11-23 13:58:09,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 13:58:09,116 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 218 transitions. [2018-11-23 13:58:09,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-23 13:58:09,116 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:09,117 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:09,117 INFO L423 AbstractCegarLoop]: === Iteration 47 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:58:09,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:09,117 INFO L82 PathProgramCache]: Analyzing trace with hash -938145612, now seen corresponding path program 1 times [2018-11-23 13:58:09,117 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:58:09,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:58:09,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:09,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:09,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:09,504 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:09,504 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:58:09,504 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:58:09,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:09,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:09,695 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 13:58:09,700 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 13:58:09,700 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-23 13:58:09,703 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:58:09,709 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:58:09,709 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:10 [2018-11-23 13:58:09,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 13:58:09,775 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:58:09,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11] total 29 [2018-11-23 13:58:09,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-11-23 13:58:09,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-11-23 13:58:09,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=720, Unknown=0, NotChecked=0, Total=812 [2018-11-23 13:58:09,776 INFO L87 Difference]: Start difference. First operand 203 states and 218 transitions. Second operand 29 states. [2018-11-23 13:58:10,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:10,897 INFO L93 Difference]: Finished difference Result 216 states and 224 transitions. [2018-11-23 13:58:10,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-11-23 13:58:10,898 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 55 [2018-11-23 13:58:10,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:10,898 INFO L225 Difference]: With dead ends: 216 [2018-11-23 13:58:10,898 INFO L226 Difference]: Without dead ends: 216 [2018-11-23 13:58:10,898 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1108 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=703, Invalid=3587, Unknown=0, NotChecked=0, Total=4290 [2018-11-23 13:58:10,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-11-23 13:58:10,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 192. [2018-11-23 13:58:10,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-11-23 13:58:10,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 204 transitions. [2018-11-23 13:58:10,900 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 204 transitions. Word has length 55 [2018-11-23 13:58:10,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:10,900 INFO L480 AbstractCegarLoop]: Abstraction has 192 states and 204 transitions. [2018-11-23 13:58:10,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2018-11-23 13:58:10,900 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 204 transitions. [2018-11-23 13:58:10,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-23 13:58:10,900 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:10,901 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:10,901 INFO L423 AbstractCegarLoop]: === Iteration 48 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:58:10,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:10,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1598185672, now seen corresponding path program 1 times [2018-11-23 13:58:10,901 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:58:10,901 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:58:10,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:10,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:10,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:11,068 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:11,068 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:58:11,068 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:58:11,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:11,105 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:11,195 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-11-23 13:58:11,196 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-23 13:58:11,196 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:11,197 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:11,201 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-23 13:58:11,202 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2018-11-23 13:58:11,202 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:11,203 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:11,204 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:11,205 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:32, output treesize:9 [2018-11-23 13:58:11,234 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 13:58:11,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 13:58:11,235 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:11,236 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:11,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:11,237 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:3 [2018-11-23 13:58:11,253 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 13:58:11,268 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:58:11,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11] total 28 [2018-11-23 13:58:11,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-11-23 13:58:11,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-11-23 13:58:11,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756 [2018-11-23 13:58:11,269 INFO L87 Difference]: Start difference. First operand 192 states and 204 transitions. Second operand 28 states. [2018-11-23 13:58:12,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:12,477 INFO L93 Difference]: Finished difference Result 233 states and 240 transitions. [2018-11-23 13:58:12,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-11-23 13:58:12,478 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 56 [2018-11-23 13:58:12,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:12,478 INFO L225 Difference]: With dead ends: 233 [2018-11-23 13:58:12,478 INFO L226 Difference]: Without dead ends: 233 [2018-11-23 13:58:12,479 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=563, Invalid=3597, Unknown=0, NotChecked=0, Total=4160 [2018-11-23 13:58:12,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2018-11-23 13:58:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 204. [2018-11-23 13:58:12,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-11-23 13:58:12,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 218 transitions. [2018-11-23 13:58:12,481 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 218 transitions. Word has length 56 [2018-11-23 13:58:12,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:12,481 INFO L480 AbstractCegarLoop]: Abstraction has 204 states and 218 transitions. [2018-11-23 13:58:12,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-11-23 13:58:12,481 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 218 transitions. [2018-11-23 13:58:12,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-23 13:58:12,481 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:12,482 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:12,482 INFO L423 AbstractCegarLoop]: === Iteration 49 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:58:12,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:12,482 INFO L82 PathProgramCache]: Analyzing trace with hash 494895164, now seen corresponding path program 4 times [2018-11-23 13:58:12,482 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:58:12,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:58:12,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:12,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:12,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:12,954 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:58:12,954 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:58:12,966 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-23 13:58:12,990 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-23 13:58:12,990 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:58:12,993 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:12,997 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:12,998 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:12,998 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:58:12,998 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,004 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,004 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-11-23 13:58:13,036 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:13,037 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:13,038 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,039 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,048 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:13,050 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:13,050 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,051 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,058 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,058 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:29 [2018-11-23 13:58:13,116 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:58:13,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:58:13,119 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,123 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,132 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:58:13,134 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:13,134 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,137 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,142 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,142 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:67, output treesize:29 [2018-11-23 13:58:13,150 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,150 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,151 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,151 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 42 [2018-11-23 13:58:13,152 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,161 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,162 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:46 [2018-11-23 13:58:13,196 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-23 13:58:13,197 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:58:13,198 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,202 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,216 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-11-23 13:58:13,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:58:13,218 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,224 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,234 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,234 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:68, output treesize:70 [2018-11-23 13:58:13,334 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,335 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,341 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 120 [2018-11-23 13:58:13,342 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:13,343 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,352 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,364 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,369 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 108 [2018-11-23 13:58:13,370 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:13,370 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,378 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,387 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,387 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:144, output treesize:94 [2018-11-23 13:58:13,417 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,417 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,423 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 120 [2018-11-23 13:58:13,425 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:13,425 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,436 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,450 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,450 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,456 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 120 [2018-11-23 13:58:13,457 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:13,457 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,465 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,473 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,474 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:144, output treesize:94 [2018-11-23 13:58:13,503 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,504 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,509 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,509 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,510 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 115 [2018-11-23 13:58:13,510 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,530 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,531 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:139 [2018-11-23 13:58:13,587 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,588 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,595 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 132 [2018-11-23 13:58:13,598 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 19 [2018-11-23 13:58:13,598 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,615 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,639 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:13,645 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 131 [2018-11-23 13:58:13,648 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 19 [2018-11-23 13:58:13,648 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,663 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,684 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:161, output treesize:191 [2018-11-23 13:58:13,812 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 422 treesize of output 288 [2018-11-23 13:58:13,814 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 1 [2018-11-23 13:58:13,815 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,832 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,858 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 282 [2018-11-23 13:58:13,861 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 1 [2018-11-23 13:58:13,861 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,875 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,890 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:13,890 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:427, output treesize:221 [2018-11-23 13:58:14,158 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 179 [2018-11-23 13:58:14,160 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 143 [2018-11-23 13:58:14,160 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:14,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 78 [2018-11-23 13:58:14,172 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:14,183 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:14,195 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:14,195 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:251, output treesize:152 [2018-11-23 13:58:14,317 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 79 [2018-11-23 13:58:14,319 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2018-11-23 13:58:14,320 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:14,332 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 20 [2018-11-23 13:58:14,332 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:14,341 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2018-11-23 13:58:14,341 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:14,350 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:14,358 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:14,359 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:156, output treesize:45 [2018-11-23 13:58:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:14,471 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:58:14,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 22] total 44 [2018-11-23 13:58:14,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-11-23 13:58:14,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-11-23 13:58:14,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1799, Unknown=0, NotChecked=0, Total=1980 [2018-11-23 13:58:14,471 INFO L87 Difference]: Start difference. First operand 204 states and 218 transitions. Second operand 45 states. [2018-11-23 13:58:16,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:16,993 INFO L93 Difference]: Finished difference Result 263 states and 279 transitions. [2018-11-23 13:58:16,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-23 13:58:16,993 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 57 [2018-11-23 13:58:16,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:16,994 INFO L225 Difference]: With dead ends: 263 [2018-11-23 13:58:16,994 INFO L226 Difference]: Without dead ends: 263 [2018-11-23 13:58:16,994 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1138 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=477, Invalid=3813, Unknown=0, NotChecked=0, Total=4290 [2018-11-23 13:58:16,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2018-11-23 13:58:16,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 204. [2018-11-23 13:58:16,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-11-23 13:58:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 217 transitions. [2018-11-23 13:58:16,995 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 217 transitions. Word has length 57 [2018-11-23 13:58:16,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:16,996 INFO L480 AbstractCegarLoop]: Abstraction has 204 states and 217 transitions. [2018-11-23 13:58:16,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-11-23 13:58:16,996 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 217 transitions. [2018-11-23 13:58:16,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-23 13:58:16,996 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:16,996 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:16,996 INFO L423 AbstractCegarLoop]: === Iteration 50 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:58:16,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:16,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1530316092, now seen corresponding path program 7 times [2018-11-23 13:58:16,996 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:58:16,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:58:16,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:16,997 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:58:16,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:17,361 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:17,361 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:58:17,361 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:58:17,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:17,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:17,400 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,403 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,403 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:58:17,403 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,412 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,412 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-11-23 13:58:17,440 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:17,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:17,442 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,445 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,454 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:17,455 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:17,455 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,457 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,465 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,465 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:29 [2018-11-23 13:58:17,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:58:17,525 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:17,525 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,528 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,538 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:58:17,539 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:58:17,539 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,543 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,547 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:67, output treesize:29 [2018-11-23 13:58:17,555 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,556 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,557 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,557 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 42 [2018-11-23 13:58:17,558 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,567 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,568 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:46 [2018-11-23 13:58:17,601 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-23 13:58:17,603 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:58:17,603 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,607 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,621 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-11-23 13:58:17,623 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:58:17,623 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,629 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,639 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:68, output treesize:70 [2018-11-23 13:58:17,740 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,742 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,748 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 120 [2018-11-23 13:58:17,750 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:17,750 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,766 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,779 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,784 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 104 [2018-11-23 13:58:17,785 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:17,786 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,794 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,802 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,802 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:144, output treesize:82 [2018-11-23 13:58:17,832 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,833 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 120 [2018-11-23 13:58:17,841 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:17,841 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,850 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,863 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 104 [2018-11-23 13:58:17,870 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:17,870 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,878 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,886 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,886 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:144, output treesize:82 [2018-11-23 13:58:17,920 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,921 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,922 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,922 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,923 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 127 [2018-11-23 13:58:17,923 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,938 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:17,938 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:139 [2018-11-23 13:58:17,982 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,983 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:17,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 128 [2018-11-23 13:58:17,990 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 19 [2018-11-23 13:58:17,990 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,002 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,021 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:18,026 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 139 [2018-11-23 13:58:18,028 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 19 [2018-11-23 13:58:18,028 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,041 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,057 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,057 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:161, output treesize:191 [2018-11-23 13:58:18,152 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 405 treesize of output 385 [2018-11-23 13:58:18,154 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 1 [2018-11-23 13:58:18,154 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,167 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,192 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 319 treesize of output 221 [2018-11-23 13:58:18,194 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 1 [2018-11-23 13:58:18,194 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,205 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,217 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,217 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:427, output treesize:221 [2018-11-23 13:58:18,426 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 179 [2018-11-23 13:58:18,427 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 143 [2018-11-23 13:58:18,428 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:18,439 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 78 [2018-11-23 13:58:18,439 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,448 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:18,460 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:18,460 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:251, output treesize:152 [2018-11-23 13:58:18,584 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 79 [2018-11-23 13:58:18,586 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 22 [2018-11-23 13:58:18,586 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:18,596 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2018-11-23 13:58:18,596 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:18,605 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2018-11-23 13:58:18,605 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:18,613 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:18,623 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:18,623 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:156, output treesize:45 [2018-11-23 13:58:18,714 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:18,729 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:58:18,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 22] total 44 [2018-11-23 13:58:18,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-11-23 13:58:18,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-11-23 13:58:18,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1795, Unknown=0, NotChecked=0, Total=1980 [2018-11-23 13:58:18,730 INFO L87 Difference]: Start difference. First operand 204 states and 217 transitions. Second operand 45 states. [2018-11-23 13:58:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:20,758 INFO L93 Difference]: Finished difference Result 265 states and 281 transitions. [2018-11-23 13:58:20,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-23 13:58:20,758 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 57 [2018-11-23 13:58:20,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:20,758 INFO L225 Difference]: With dead ends: 265 [2018-11-23 13:58:20,759 INFO L226 Difference]: Without dead ends: 265 [2018-11-23 13:58:20,759 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1102 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=469, Invalid=3691, Unknown=0, NotChecked=0, Total=4160 [2018-11-23 13:58:20,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-11-23 13:58:20,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 210. [2018-11-23 13:58:20,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-11-23 13:58:20,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 224 transitions. [2018-11-23 13:58:20,760 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 224 transitions. Word has length 57 [2018-11-23 13:58:20,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:20,761 INFO L480 AbstractCegarLoop]: Abstraction has 210 states and 224 transitions. [2018-11-23 13:58:20,761 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-11-23 13:58:20,761 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 224 transitions. [2018-11-23 13:58:20,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-23 13:58:20,761 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:20,761 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:20,761 INFO L423 AbstractCegarLoop]: === Iteration 51 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:58:20,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:20,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1530316093, now seen corresponding path program 6 times [2018-11-23 13:58:20,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:58:20,762 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:58:20,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:20,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:20,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:21,180 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:58:21,180 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:58:21,191 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-23 13:58:21,301 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2018-11-23 13:58:21,301 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:58:21,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:21,307 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:21,307 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,311 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,311 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:58:21,358 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,358 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,359 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:58:21,359 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,367 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:27 [2018-11-23 13:58:21,398 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:21,399 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:21,400 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,401 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,412 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:21,414 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:21,414 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,415 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,424 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:49, output treesize:39 [2018-11-23 13:58:21,519 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,522 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:58:21,524 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:21,524 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,529 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,541 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2018-11-23 13:58:21,542 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:58:21,543 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,546 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,553 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,553 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:85, output treesize:43 [2018-11-23 13:58:21,581 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,582 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,582 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,582 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2018-11-23 13:58:21,583 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,591 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,591 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:48 [2018-11-23 13:58:21,622 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,625 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-11-23 13:58:21,627 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:58:21,627 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,633 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,645 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2018-11-23 13:58:21,647 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:58:21,647 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,653 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,661 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,662 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:67, output treesize:72 [2018-11-23 13:58:21,765 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,766 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,773 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 113 [2018-11-23 13:58:21,775 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:21,776 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,790 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,802 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,803 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,808 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 125 [2018-11-23 13:58:21,809 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:21,810 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,819 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,827 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,827 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:138, output treesize:88 [2018-11-23 13:58:21,858 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,858 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,866 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 113 [2018-11-23 13:58:21,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:21,868 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,878 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,894 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,894 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:21,900 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 125 [2018-11-23 13:58:21,902 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:21,902 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,912 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,924 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 22 [2018-11-23 13:58:21,926 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2018-11-23 13:58:21,926 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,927 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,938 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,938 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:151, output treesize:109 [2018-11-23 13:58:21,979 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:21,979 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,992 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:21,992 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:118, output treesize:117 [2018-11-23 13:58:22,040 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:22,046 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 122 [2018-11-23 13:58:22,048 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:22,049 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:22,063 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:22,086 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:22,092 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 110 [2018-11-23 13:58:22,094 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:22,094 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:22,106 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:22,129 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 47 [2018-11-23 13:58:22,131 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:22,133 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 51 [2018-11-23 13:58:22,133 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:22,137 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:22,152 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:22,152 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:154, output treesize:128 [2018-11-23 13:58:22,304 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 394 treesize of output 338 [2018-11-23 13:58:22,305 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-23 13:58:22,321 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-23 13:58:22,321 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:29,030 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 375 treesize of output 295 [2018-11-23 13:58:29,031 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:29,107 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:29,135 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:29,143 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 160 [2018-11-23 13:58:29,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 131 [2018-11-23 13:58:29,146 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:29,165 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:58:29,165 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:29,166 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 96 [2018-11-23 13:58:29,166 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:29,177 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:58:29,206 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:29,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 276 treesize of output 224 [2018-11-23 13:58:29,239 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:29,240 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 328 [2018-11-23 13:58:29,240 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:29,449 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 177 [2018-11-23 13:58:29,449 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:29,474 INFO L267 ElimStorePlain]: Start of recursive call 8: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:29,483 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 286 treesize of output 201 [2018-11-23 13:58:29,486 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:29,487 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 235 [2018-11-23 13:58:29,488 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:29,504 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:29,539 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-23 13:58:29,539 INFO L202 ElimStorePlain]: Needed 12 recursive calls to eliminate 4 variables, input treesize:408, output treesize:395 [2018-11-23 13:58:30,677 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,678 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,679 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,680 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,681 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,681 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,682 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,683 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,685 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 272 treesize of output 326 [2018-11-23 13:58:30,701 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 52 [2018-11-23 13:58:30,702 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:30,741 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2018-11-23 13:58:30,741 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:30,766 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 13:58:30,766 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:30,796 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:58:30,796 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:58:30,796 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:30,822 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:30,873 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,874 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,875 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,876 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,876 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:30,878 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 250 [2018-11-23 13:58:30,884 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 17 [2018-11-23 13:58:30,885 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:30,912 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:58:30,913 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:30,933 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:58:30,934 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-11-23 13:58:30,934 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:30,962 INFO L267 ElimStorePlain]: Start of recursive call 7: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:31,001 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-2 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-11-23 13:58:31,001 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 8 variables, input treesize:559, output treesize:339 [2018-11-23 13:58:31,125 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:31,141 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:58:31,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 27] total 52 [2018-11-23 13:58:31,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-11-23 13:58:31,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-11-23 13:58:31,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=2478, Unknown=0, NotChecked=0, Total=2652 [2018-11-23 13:58:31,141 INFO L87 Difference]: Start difference. First operand 210 states and 224 transitions. Second operand 52 states. [2018-11-23 13:58:32,633 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 97 [2018-11-23 13:58:33,459 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 133 [2018-11-23 13:58:33,677 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 160 [2018-11-23 13:58:33,981 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 167 [2018-11-23 13:58:34,245 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 166 [2018-11-23 13:58:34,674 WARN L180 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 187 [2018-11-23 13:58:35,004 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 170 [2018-11-23 13:58:35,408 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 198 [2018-11-23 13:58:35,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:35,982 INFO L93 Difference]: Finished difference Result 247 states and 260 transitions. [2018-11-23 13:58:35,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-11-23 13:58:35,983 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 57 [2018-11-23 13:58:35,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:35,984 INFO L225 Difference]: With dead ends: 247 [2018-11-23 13:58:35,984 INFO L226 Difference]: Without dead ends: 245 [2018-11-23 13:58:35,984 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1503 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=525, Invalid=5479, Unknown=2, NotChecked=0, Total=6006 [2018-11-23 13:58:35,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-11-23 13:58:35,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 204. [2018-11-23 13:58:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-11-23 13:58:35,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 216 transitions. [2018-11-23 13:58:35,986 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 216 transitions. Word has length 57 [2018-11-23 13:58:35,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:35,986 INFO L480 AbstractCegarLoop]: Abstraction has 204 states and 216 transitions. [2018-11-23 13:58:35,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-11-23 13:58:35,986 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 216 transitions. [2018-11-23 13:58:35,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-23 13:58:35,987 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:35,987 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:35,987 INFO L423 AbstractCegarLoop]: === Iteration 52 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:58:35,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:35,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1697140685, now seen corresponding path program 1 times [2018-11-23 13:58:35,987 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:58:35,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:58:35,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:35,988 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:58:35,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:36,263 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:58:36,263 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:58:36,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:36,296 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:36,303 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:36,305 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:36,305 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:58:36,306 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,313 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-11-23 13:58:36,336 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:36,338 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:36,338 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,345 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,354 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:36,356 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:36,356 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,357 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,367 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,367 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:29 [2018-11-23 13:58:36,412 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:58:36,414 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:58:36,414 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,418 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,428 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:58:36,429 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:36,429 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,432 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,437 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,437 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:67, output treesize:29 [2018-11-23 13:58:36,447 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 32 [2018-11-23 13:58:36,449 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:58:36,449 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,463 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 13:58:36,464 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:36,464 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,467 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,472 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,472 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:67, output treesize:29 [2018-11-23 13:58:36,479 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:36,480 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:36,480 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:36,481 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-11-23 13:58:36,481 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,488 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:30 [2018-11-23 13:58:36,511 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2018-11-23 13:58:36,512 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-11-23 13:58:36,512 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,516 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,527 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 35 [2018-11-23 13:58:36,528 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 11 [2018-11-23 13:58:36,529 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,533 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,540 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,540 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:49, output treesize:58 [2018-11-23 13:58:36,589 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 158 [2018-11-23 13:58:36,590 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:58:36,591 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,597 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,609 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 94 [2018-11-23 13:58:36,610 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 1 [2018-11-23 13:58:36,610 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,615 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,620 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,620 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:170, output treesize:60 [2018-11-23 13:58:36,707 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 47 [2018-11-23 13:58:36,708 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2018-11-23 13:58:36,709 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,713 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 16 [2018-11-23 13:58:36,713 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,716 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,720 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:36,720 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:74, output treesize:23 [2018-11-23 13:58:36,763 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 13:58:36,765 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 13:58:36,765 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,768 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,770 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:36,770 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:3 [2018-11-23 13:58:36,779 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:36,795 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:58:36,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 33 [2018-11-23 13:58:36,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-11-23 13:58:36,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-11-23 13:58:36,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1008, Unknown=0, NotChecked=0, Total=1122 [2018-11-23 13:58:36,795 INFO L87 Difference]: Start difference. First operand 204 states and 216 transitions. Second operand 34 states. [2018-11-23 13:58:37,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:37,668 INFO L93 Difference]: Finished difference Result 209 states and 218 transitions. [2018-11-23 13:58:37,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-23 13:58:37,668 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 58 [2018-11-23 13:58:37,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:37,669 INFO L225 Difference]: With dead ends: 209 [2018-11-23 13:58:37,669 INFO L226 Difference]: Without dead ends: 209 [2018-11-23 13:58:37,669 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=315, Invalid=2135, Unknown=0, NotChecked=0, Total=2450 [2018-11-23 13:58:37,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-11-23 13:58:37,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 204. [2018-11-23 13:58:37,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-11-23 13:58:37,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 215 transitions. [2018-11-23 13:58:37,672 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 215 transitions. Word has length 58 [2018-11-23 13:58:37,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:37,672 INFO L480 AbstractCegarLoop]: Abstraction has 204 states and 215 transitions. [2018-11-23 13:58:37,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-11-23 13:58:37,672 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 215 transitions. [2018-11-23 13:58:37,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-23 13:58:37,672 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:37,672 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:37,673 INFO L423 AbstractCegarLoop]: === Iteration 53 === [mainErr38REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION]=== [2018-11-23 13:58:37,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:37,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1578842208, now seen corresponding path program 5 times [2018-11-23 13:58:37,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:58:37,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:58:37,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:37,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:37,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:58:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:38,091 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:38,091 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:58:38,091 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:58:38,099 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-23 13:58:38,146 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-11-23 13:58:38,146 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 13:58:38,150 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:38,155 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,157 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,157 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-11-23 13:58:38,158 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,167 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:24 [2018-11-23 13:58:38,204 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:38,206 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:38,206 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,208 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:38,221 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:38,221 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,223 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,232 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,232 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:43, output treesize:36 [2018-11-23 13:58:38,342 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,346 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:58:38,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:38,348 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,354 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,366 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 39 [2018-11-23 13:58:38,367 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:58:38,367 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,371 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,378 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:82, output treesize:40 [2018-11-23 13:58:38,410 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,411 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,411 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,412 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 46 [2018-11-23 13:58:38,412 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,423 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,423 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:61 [2018-11-23 13:58:38,471 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,475 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-11-23 13:58:38,478 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:38,478 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,485 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 31 [2018-11-23 13:58:38,506 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-11-23 13:58:38,506 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,511 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,526 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,526 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:91, output treesize:68 [2018-11-23 13:58:38,684 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,685 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,692 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 89 [2018-11-23 13:58:38,695 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:38,695 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,708 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,727 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2018-11-23 13:58:38,728 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2018-11-23 13:58:38,729 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,733 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,743 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:38,743 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:130, output treesize:84 [2018-11-23 13:58:38,781 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,782 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,783 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,783 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,784 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 99 [2018-11-23 13:58:38,784 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,801 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:38,802 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:103, output treesize:121 [2018-11-23 13:58:38,853 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,856 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2018-11-23 13:58:38,858 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-11-23 13:58:38,858 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,864 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,891 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,892 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:38,897 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 108 [2018-11-23 13:58:38,899 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:38,899 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,912 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:38,931 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:38,931 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:148, output treesize:129 [2018-11-23 13:58:39,082 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,085 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 47 [2018-11-23 13:58:39,087 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-23 13:58:39,088 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,093 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,115 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,115 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,116 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 145 [2018-11-23 13:58:39,127 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:39,127 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,140 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,156 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:39,156 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:211, output treesize:137 [2018-11-23 13:58:39,205 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,209 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 47 [2018-11-23 13:58:39,210 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-11-23 13:58:39,211 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,216 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,238 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,239 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,240 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,248 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 145 [2018-11-23 13:58:39,250 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 13:58:39,250 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,264 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,280 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:39,281 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:211, output treesize:161 [2018-11-23 13:58:39,327 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,328 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,329 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,330 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,330 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,331 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 192 [2018-11-23 13:58:39,331 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,366 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:39,366 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:184, output treesize:218 [2018-11-23 13:58:39,428 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,430 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 39 [2018-11-23 13:58:39,432 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2018-11-23 13:58:39,433 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,438 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,471 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,471 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,472 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:39,481 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 217 treesize of output 172 [2018-11-23 13:58:39,483 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:39,483 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,505 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,532 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:39,532 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:240, output treesize:214 [2018-11-23 13:58:39,660 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 83 [2018-11-23 13:58:39,662 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-11-23 13:58:39,662 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,667 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,710 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 328 treesize of output 189 [2018-11-23 13:58:39,712 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 1 [2018-11-23 13:58:39,712 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,729 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,752 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:39,753 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:417, output treesize:283 [2018-11-23 13:58:39,981 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 13:58:39,983 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-11-23 13:58:39,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:39,985 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:40,010 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:40,010 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:302, output treesize:287 [2018-11-23 13:58:40,073 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-11-23 13:58:40,075 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-11-23 13:58:40,075 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:40,079 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:40,104 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:40,104 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:297, output treesize:282 [2018-11-23 13:58:40,229 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 272 treesize of output 121 [2018-11-23 13:58:40,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2018-11-23 13:58:40,231 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:40,248 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26 [2018-11-23 13:58:40,248 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:40,264 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 24 [2018-11-23 13:58:40,265 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:40,281 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:58:40,281 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2018-11-23 13:58:40,281 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:40,296 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:40,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:40,313 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 6 variables, input treesize:283, output treesize:66 [2018-11-23 13:58:40,450 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:40,465 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:58:40,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 51 [2018-11-23 13:58:40,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-11-23 13:58:40,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-11-23 13:58:40,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=2412, Unknown=0, NotChecked=0, Total=2652 [2018-11-23 13:58:40,466 INFO L87 Difference]: Start difference. First operand 204 states and 215 transitions. Second operand 52 states. [2018-11-23 13:58:43,176 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-23 13:58:43,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-23 13:58:43,177 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:141) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:893) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:767) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:339) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:382) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:699) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:628) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 43 more [2018-11-23 13:58:43,180 INFO L168 Benchmark]: Toolchain (without parser) took 266174.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -96.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-11-23 13:58:43,180 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:58:43,180 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:58:43,180 INFO L168 Benchmark]: Boogie Preprocessor took 41.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 13:58:43,181 INFO L168 Benchmark]: RCFGBuilder took 390.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. [2018-11-23 13:58:43,181 INFO L168 Benchmark]: TraceAbstraction took 265409.46 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 14.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -18.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:58:43,182 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 329.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 390.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 265409.46 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 14.7 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -18.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 13:58:44,412 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:58:44,414 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:58:44,423 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:58:44,423 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:58:44,424 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:58:44,425 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:58:44,426 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:58:44,427 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:58:44,427 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:58:44,428 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:58:44,428 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:58:44,429 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:58:44,430 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:58:44,430 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:58:44,431 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:58:44,431 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:58:44,437 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:58:44,438 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:58:44,439 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:58:44,440 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:58:44,441 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:58:44,442 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:58:44,443 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:58:44,443 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:58:44,443 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:58:44,444 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:58:44,444 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:58:44,446 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:58:44,446 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:58:44,446 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:58:44,447 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:58:44,447 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:58:44,447 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:58:44,448 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:58:44,448 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:58:44,449 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2018-11-23 13:58:44,459 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:58:44,459 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:58:44,460 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:58:44,460 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:58:44,460 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:58:44,460 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:58:44,461 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:58:44,461 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:58:44,461 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:58:44,461 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 13:58:44,461 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:58:44,461 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:58:44,462 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:58:44,462 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-23 13:58:44,462 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-23 13:58:44,462 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-23 13:58:44,462 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:58:44,462 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 13:58:44,462 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 13:58:44,462 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:58:44,463 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:58:44,463 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:58:44,463 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:58:44,463 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:58:44,463 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:58:44,463 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:58:44,463 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:58:44,463 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:58:44,464 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 13:58:44,464 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:58:44,464 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 13:58:44,464 INFO L133 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba8e1e3b81a4ef74bb5d2812e833b1076e8dddee [2018-11-23 13:58:44,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:58:44,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:58:44,508 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:58:44,509 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:58:44,510 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:58:44,510 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/../../sv-benchmarks/c/forester-heap/sll-token_true-unreach-call_true-valid-memsafety.i [2018-11-23 13:58:44,549 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/data/80a794a14/984aff7cd8ca44ca851000d049c6d22f/FLAG61c10cc35 [2018-11-23 13:58:44,918 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:58:44,918 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/sv-benchmarks/c/forester-heap/sll-token_true-unreach-call_true-valid-memsafety.i [2018-11-23 13:58:44,927 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/data/80a794a14/984aff7cd8ca44ca851000d049c6d22f/FLAG61c10cc35 [2018-11-23 13:58:45,310 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/data/80a794a14/984aff7cd8ca44ca851000d049c6d22f [2018-11-23 13:58:45,312 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:58:45,313 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-23 13:58:45,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:58:45,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:58:45,317 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:58:45,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:45" (1/1) ... [2018-11-23 13:58:45,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7d1ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45, skipping insertion in model container [2018-11-23 13:58:45,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:45" (1/1) ... [2018-11-23 13:58:45,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:58:45,356 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:58:45,564 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:58:45,574 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:58:45,612 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:58:45,650 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:58:45,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45 WrapperNode [2018-11-23 13:58:45,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:58:45,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:58:45,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:58:45,651 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:58:45,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2018-11-23 13:58:45,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2018-11-23 13:58:45,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2018-11-23 13:58:45,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2018-11-23 13:58:45,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2018-11-23 13:58:45,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2018-11-23 13:58:45,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2018-11-23 13:58:45,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:58:45,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:58:45,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:58:45,748 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:58:45,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:58:45,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:58:45,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:58:45,782 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:58:45,782 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-23 13:58:45,782 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-23 13:58:45,782 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-23 13:58:45,782 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-23 13:58:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-23 13:58:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-23 13:58:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-23 13:58:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-23 13:58:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-23 13:58:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-23 13:58:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-23 13:58:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-23 13:58:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-23 13:58:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-23 13:58:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-23 13:58:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-23 13:58:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-23 13:58:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-23 13:58:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-23 13:58:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-23 13:58:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-23 13:58:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-23 13:58:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-23 13:58:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-23 13:58:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-23 13:58:45,785 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-23 13:58:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-23 13:58:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-23 13:58:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-23 13:58:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-23 13:58:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-23 13:58:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-23 13:58:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-23 13:58:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-23 13:58:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-23 13:58:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-23 13:58:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-23 13:58:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-23 13:58:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-23 13:58:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-23 13:58:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-23 13:58:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-23 13:58:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-23 13:58:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-23 13:58:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-23 13:58:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-23 13:58:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-23 13:58:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-23 13:58:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-23 13:58:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-23 13:58:45,791 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-23 13:58:45,791 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-23 13:58:45,791 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-23 13:58:45,791 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-23 13:58:45,791 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-23 13:58:45,791 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-23 13:58:45,791 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-23 13:58:45,791 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-23 13:58:45,791 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-23 13:58:45,791 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-23 13:58:45,791 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-23 13:58:45,792 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-23 13:58:45,792 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-23 13:58:45,792 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-23 13:58:45,792 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-23 13:58:45,792 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-23 13:58:45,792 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-23 13:58:45,792 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-23 13:58:45,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-23 13:58:45,792 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-23 13:58:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:58:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 13:58:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 13:58:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 13:58:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 13:58:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 13:58:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 13:58:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:58:45,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:58:46,275 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:58:46,276 INFO L280 CfgBuilder]: Removed 15 assue(true) statements. [2018-11-23 13:58:46,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:46 BoogieIcfgContainer [2018-11-23 13:58:46,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:58:46,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:58:46,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:58:46,280 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:58:46,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:58:45" (1/3) ... [2018-11-23 13:58:46,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a17a69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:46, skipping insertion in model container [2018-11-23 13:58:46,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (2/3) ... [2018-11-23 13:58:46,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a17a69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:46, skipping insertion in model container [2018-11-23 13:58:46,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:46" (3/3) ... [2018-11-23 13:58:46,282 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-token_true-unreach-call_true-valid-memsafety.i [2018-11-23 13:58:46,291 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:58:46,298 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 45 error locations. [2018-11-23 13:58:46,311 INFO L257 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2018-11-23 13:58:46,332 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:58:46,333 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:58:46,333 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-23 13:58:46,333 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:58:46,333 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:58:46,333 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:58:46,334 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:58:46,334 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:58:46,334 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:58:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2018-11-23 13:58:46,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 13:58:46,356 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:46,357 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:46,359 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:58:46,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:46,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1597394023, now seen corresponding path program 1 times [2018-11-23 13:58:46,369 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:58:46,369 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:58:46,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:46,417 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:46,461 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:46,463 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:46,470 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:46,470 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-23 13:58:46,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:46,479 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (2)] Exception during sending of exit command (exit): Broken pipe [2018-11-23 13:58:46,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:58:46,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:58:46,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:58:46,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:58:46,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:58:46,500 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 3 states. [2018-11-23 13:58:46,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:46,709 INFO L93 Difference]: Finished difference Result 117 states and 120 transitions. [2018-11-23 13:58:46,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:58:46,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-23 13:58:46,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:46,720 INFO L225 Difference]: With dead ends: 117 [2018-11-23 13:58:46,720 INFO L226 Difference]: Without dead ends: 114 [2018-11-23 13:58:46,722 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:58:46,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-11-23 13:58:46,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 98. [2018-11-23 13:58:46,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-11-23 13:58:46,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2018-11-23 13:58:46,756 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 100 transitions. Word has length 7 [2018-11-23 13:58:46,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:46,757 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 100 transitions. [2018-11-23 13:58:46,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:58:46,757 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 100 transitions. [2018-11-23 13:58:46,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 13:58:46,757 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:46,757 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:46,758 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:58:46,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:46,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1597394022, now seen corresponding path program 1 times [2018-11-23 13:58:46,758 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:58:46,758 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:58:46,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:46,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:46,801 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:46,802 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:46,808 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:46,808 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:58:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:46,817 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:58:46,818 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:58:46,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:58:46,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:58:46,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:58:46,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:58:46,820 INFO L87 Difference]: Start difference. First operand 98 states and 100 transitions. Second operand 3 states. [2018-11-23 13:58:47,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:47,036 INFO L93 Difference]: Finished difference Result 118 states and 120 transitions. [2018-11-23 13:58:47,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:58:47,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-23 13:58:47,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:47,038 INFO L225 Difference]: With dead ends: 118 [2018-11-23 13:58:47,038 INFO L226 Difference]: Without dead ends: 118 [2018-11-23 13:58:47,038 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:58:47,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-11-23 13:58:47,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 96. [2018-11-23 13:58:47,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-11-23 13:58:47,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 98 transitions. [2018-11-23 13:58:47,045 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 98 transitions. Word has length 7 [2018-11-23 13:58:47,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:47,045 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 98 transitions. [2018-11-23 13:58:47,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:58:47,045 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 98 transitions. [2018-11-23 13:58:47,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 13:58:47,046 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:47,046 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:47,046 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:58:47,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:47,047 INFO L82 PathProgramCache]: Analyzing trace with hash -149355076, now seen corresponding path program 1 times [2018-11-23 13:58:47,047 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:58:47,047 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:58:47,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:47,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:47,089 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:47,089 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:47,091 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:47,091 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-23 13:58:47,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:47,101 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:58:47,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:58:47,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:58:47,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 13:58:47,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 13:58:47,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:58:47,103 INFO L87 Difference]: Start difference. First operand 96 states and 98 transitions. Second operand 4 states. [2018-11-23 13:58:47,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:47,345 INFO L93 Difference]: Finished difference Result 98 states and 101 transitions. [2018-11-23 13:58:47,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 13:58:47,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-23 13:58:47,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:47,346 INFO L225 Difference]: With dead ends: 98 [2018-11-23 13:58:47,346 INFO L226 Difference]: Without dead ends: 98 [2018-11-23 13:58:47,347 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:58:47,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-11-23 13:58:47,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 85. [2018-11-23 13:58:47,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-11-23 13:58:47,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions. [2018-11-23 13:58:47,354 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 11 [2018-11-23 13:58:47,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:47,354 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 89 transitions. [2018-11-23 13:58:47,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 13:58:47,354 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions. [2018-11-23 13:58:47,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 13:58:47,355 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:47,355 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:47,355 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:58:47,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:47,356 INFO L82 PathProgramCache]: Analyzing trace with hash -149355075, now seen corresponding path program 1 times [2018-11-23 13:58:47,356 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:58:47,356 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:58:47,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:47,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:47,401 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:47,402 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:47,407 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:47,408 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:58:47,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:47,424 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:58:47,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:58:47,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:58:47,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 13:58:47,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 13:58:47,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 13:58:47,428 INFO L87 Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 4 states. [2018-11-23 13:58:47,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:47,773 INFO L93 Difference]: Finished difference Result 146 states and 150 transitions. [2018-11-23 13:58:47,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 13:58:47,774 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-23 13:58:47,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:47,775 INFO L225 Difference]: With dead ends: 146 [2018-11-23 13:58:47,775 INFO L226 Difference]: Without dead ends: 146 [2018-11-23 13:58:47,775 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:58:47,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-11-23 13:58:47,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 112. [2018-11-23 13:58:47,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-11-23 13:58:47,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 119 transitions. [2018-11-23 13:58:47,780 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 119 transitions. Word has length 11 [2018-11-23 13:58:47,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:47,780 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 119 transitions. [2018-11-23 13:58:47,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 13:58:47,781 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 119 transitions. [2018-11-23 13:58:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 13:58:47,781 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:47,781 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:47,781 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:58:47,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:47,782 INFO L82 PathProgramCache]: Analyzing trace with hash 150024796, now seen corresponding path program 1 times [2018-11-23 13:58:47,782 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:58:47,782 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:58:47,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:47,824 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:47,846 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-23 13:58:47,846 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:47,851 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:47,851 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2018-11-23 13:58:47,868 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:47,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:47,871 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:47,873 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:47,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:47,878 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:11 [2018-11-23 13:58:47,889 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 13:58:47,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-11-23 13:58:47,893 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:47,895 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:47,896 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:47,896 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:7 [2018-11-23 13:58:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:47,911 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:58:47,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:58:47,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 13:58:47,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 13:58:47,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 13:58:47,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-23 13:58:47,914 INFO L87 Difference]: Start difference. First operand 112 states and 119 transitions. Second operand 7 states. [2018-11-23 13:58:48,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:48,515 INFO L93 Difference]: Finished difference Result 165 states and 175 transitions. [2018-11-23 13:58:48,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 13:58:48,516 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-11-23 13:58:48,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:48,517 INFO L225 Difference]: With dead ends: 165 [2018-11-23 13:58:48,517 INFO L226 Difference]: Without dead ends: 165 [2018-11-23 13:58:48,517 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-11-23 13:58:48,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-11-23 13:58:48,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 111. [2018-11-23 13:58:48,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-23 13:58:48,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 118 transitions. [2018-11-23 13:58:48,524 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 118 transitions. Word has length 14 [2018-11-23 13:58:48,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:48,524 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 118 transitions. [2018-11-23 13:58:48,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 13:58:48,524 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 118 transitions. [2018-11-23 13:58:48,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 13:58:48,524 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:48,525 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:48,525 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:58:48,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:48,525 INFO L82 PathProgramCache]: Analyzing trace with hash 150024797, now seen corresponding path program 1 times [2018-11-23 13:58:48,526 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:58:48,526 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:58:48,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:48,582 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:48,586 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:48,586 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,590 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:58:48,608 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:48,611 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:48,611 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,614 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,628 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:48,630 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:48,631 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,633 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,640 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2018-11-23 13:58:48,652 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:58:48,654 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:58:48,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,657 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,665 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 13:58:48,667 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-11-23 13:58:48,667 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,669 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,672 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:48,673 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:33, output treesize:11 [2018-11-23 13:58:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:48,690 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:58:48,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:58:48,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:58:48,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:58:48,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:58:48,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:58:48,693 INFO L87 Difference]: Start difference. First operand 111 states and 118 transitions. Second operand 6 states. [2018-11-23 13:58:49,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:49,263 INFO L93 Difference]: Finished difference Result 184 states and 196 transitions. [2018-11-23 13:58:49,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 13:58:49,263 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-23 13:58:49,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:49,265 INFO L225 Difference]: With dead ends: 184 [2018-11-23 13:58:49,265 INFO L226 Difference]: Without dead ends: 184 [2018-11-23 13:58:49,265 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:58:49,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2018-11-23 13:58:49,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 98. [2018-11-23 13:58:49,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-11-23 13:58:49,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 104 transitions. [2018-11-23 13:58:49,271 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 104 transitions. Word has length 14 [2018-11-23 13:58:49,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:49,271 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 104 transitions. [2018-11-23 13:58:49,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:58:49,271 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 104 transitions. [2018-11-23 13:58:49,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 13:58:49,272 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:49,272 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:49,272 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:58:49,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:49,272 INFO L82 PathProgramCache]: Analyzing trace with hash 326216000, now seen corresponding path program 1 times [2018-11-23 13:58:49,275 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:58:49,275 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:58:49,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:49,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:49,330 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-23 13:58:49,331 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,334 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:49,335 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2018-11-23 13:58:49,344 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:49,346 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:49,347 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,348 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,352 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,353 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:17, output treesize:11 [2018-11-23 13:58:49,360 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 13:58:49,362 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-11-23 13:58:49,363 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,364 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,365 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,365 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:7 [2018-11-23 13:58:49,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:49,371 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:58:49,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:58:49,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:58:49,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:58:49,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:58:49,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:58:49,374 INFO L87 Difference]: Start difference. First operand 98 states and 104 transitions. Second operand 6 states. [2018-11-23 13:58:49,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:49,621 INFO L93 Difference]: Finished difference Result 100 states and 104 transitions. [2018-11-23 13:58:49,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:58:49,621 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-23 13:58:49,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:49,621 INFO L225 Difference]: With dead ends: 100 [2018-11-23 13:58:49,621 INFO L226 Difference]: Without dead ends: 100 [2018-11-23 13:58:49,622 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-23 13:58:49,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-11-23 13:58:49,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2018-11-23 13:58:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-11-23 13:58:49,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 103 transitions. [2018-11-23 13:58:49,625 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 103 transitions. Word has length 15 [2018-11-23 13:58:49,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:49,625 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 103 transitions. [2018-11-23 13:58:49,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:58:49,625 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 103 transitions. [2018-11-23 13:58:49,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 13:58:49,626 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:49,626 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:49,627 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:58:49,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:49,628 INFO L82 PathProgramCache]: Analyzing trace with hash 326216001, now seen corresponding path program 1 times [2018-11-23 13:58:49,628 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:58:49,628 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:58:49,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:49,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:49,682 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:49,682 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,688 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,689 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:58:49,704 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:49,706 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:49,706 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,709 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,724 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:49,726 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:49,727 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,730 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,736 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,736 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:28, output treesize:17 [2018-11-23 13:58:49,747 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:58:49,748 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:58:49,749 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,751 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,769 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-23 13:58:49,772 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-11-23 13:58:49,772 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,775 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,781 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:49,782 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:31, output treesize:9 [2018-11-23 13:58:49,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:49,794 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:58:49,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:58:49,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 13:58:49,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 13:58:49,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:58:49,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:58:49,797 INFO L87 Difference]: Start difference. First operand 97 states and 103 transitions. Second operand 5 states. [2018-11-23 13:58:50,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:50,041 INFO L93 Difference]: Finished difference Result 96 states and 102 transitions. [2018-11-23 13:58:50,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:58:50,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-11-23 13:58:50,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:50,042 INFO L225 Difference]: With dead ends: 96 [2018-11-23 13:58:50,042 INFO L226 Difference]: Without dead ends: 96 [2018-11-23 13:58:50,043 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 13:58:50,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-11-23 13:58:50,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-11-23 13:58:50,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-11-23 13:58:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 102 transitions. [2018-11-23 13:58:50,045 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 102 transitions. Word has length 15 [2018-11-23 13:58:50,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:50,045 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 102 transitions. [2018-11-23 13:58:50,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 13:58:50,045 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 102 transitions. [2018-11-23 13:58:50,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 13:58:50,046 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:50,046 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:50,046 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:58:50,046 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:50,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1122883416, now seen corresponding path program 1 times [2018-11-23 13:58:50,046 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:58:50,047 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:58:50,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:50,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:50,141 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:50,141 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,144 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,145 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:58:50,167 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:50,168 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:50,169 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-23 13:58:50,169 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,180 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,180 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:25 [2018-11-23 13:58:50,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:50,203 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:50,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,206 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,222 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,223 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:35 [2018-11-23 13:58:50,269 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2018-11-23 13:58:50,272 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-11-23 13:58:50,272 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,276 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,282 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,282 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:60, output treesize:29 [2018-11-23 13:58:50,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 13:58:50,317 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-11-23 13:58:50,318 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,321 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:50,333 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:50,333 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-11-23 13:58:50,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:50,365 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:58:50,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:58:50,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 13:58:50,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 13:58:50,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 13:58:50,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:58:50,367 INFO L87 Difference]: Start difference. First operand 96 states and 102 transitions. Second operand 11 states. [2018-11-23 13:58:51,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:51,181 INFO L93 Difference]: Finished difference Result 165 states and 173 transitions. [2018-11-23 13:58:51,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 13:58:51,181 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-23 13:58:51,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:51,182 INFO L225 Difference]: With dead ends: 165 [2018-11-23 13:58:51,182 INFO L226 Difference]: Without dead ends: 165 [2018-11-23 13:58:51,182 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2018-11-23 13:58:51,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-11-23 13:58:51,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 113. [2018-11-23 13:58:51,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-11-23 13:58:51,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 122 transitions. [2018-11-23 13:58:51,185 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 122 transitions. Word has length 26 [2018-11-23 13:58:51,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:51,186 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 122 transitions. [2018-11-23 13:58:51,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 13:58:51,186 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 122 transitions. [2018-11-23 13:58:51,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 13:58:51,186 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:51,186 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:51,187 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:58:51,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:51,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1122883417, now seen corresponding path program 1 times [2018-11-23 13:58:51,187 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:58:51,187 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:58:51,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:51,270 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:51,273 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:51,273 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,282 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,282 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:58:51,296 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:51,296 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,310 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:51,310 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:51,311 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 13:58:51,311 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,322 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,322 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:22 [2018-11-23 13:58:51,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:51,352 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:51,352 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,355 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,375 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:51,377 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:51,378 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,380 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,399 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,399 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:41, output treesize:34 [2018-11-23 13:58:51,468 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 78 [2018-11-23 13:58:51,475 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-11-23 13:58:51,476 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,492 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 40 [2018-11-23 13:58:51,525 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 1 [2018-11-23 13:58:51,526 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,530 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,537 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,537 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:92, output treesize:30 [2018-11-23 13:58:51,573 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:58:51,575 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:58:51,576 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,578 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,586 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-23 13:58:51,588 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 12 [2018-11-23 13:58:51,589 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,593 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,599 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:51,600 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:41, output treesize:11 [2018-11-23 13:58:51,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:51,629 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:58:51,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:58:51,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 13:58:51,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 13:58:51,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 13:58:51,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:58:51,631 INFO L87 Difference]: Start difference. First operand 113 states and 122 transitions. Second operand 11 states. [2018-11-23 13:58:52,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:58:52,763 INFO L93 Difference]: Finished difference Result 192 states and 199 transitions. [2018-11-23 13:58:52,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 13:58:52,764 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-23 13:58:52,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:58:52,765 INFO L225 Difference]: With dead ends: 192 [2018-11-23 13:58:52,765 INFO L226 Difference]: Without dead ends: 192 [2018-11-23 13:58:52,766 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2018-11-23 13:58:52,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2018-11-23 13:58:52,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 113. [2018-11-23 13:58:52,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-11-23 13:58:52,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 121 transitions. [2018-11-23 13:58:52,775 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 121 transitions. Word has length 26 [2018-11-23 13:58:52,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:58:52,775 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 121 transitions. [2018-11-23 13:58:52,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 13:58:52,775 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 121 transitions. [2018-11-23 13:58:52,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 13:58:52,776 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:58:52,776 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:58:52,777 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:58:52,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:58:52,777 INFO L82 PathProgramCache]: Analyzing trace with hash -2136662952, now seen corresponding path program 1 times [2018-11-23 13:58:52,778 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:58:52,778 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:58:52,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:58:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:58:52,858 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:58:52,861 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:58:52,861 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,864 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,864 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:58:52,884 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 13:58:52,886 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 13:58:52,886 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,887 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,896 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,896 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:30, output treesize:26 [2018-11-23 13:58:52,911 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:52,912 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:52,912 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 13:58:52,912 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,922 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,922 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:23 [2018-11-23 13:58:52,944 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-11-23 13:58:52,948 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:58:52,950 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 13:58:52,950 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,955 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,973 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:58:52,976 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:58:52,976 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,978 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,990 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:52,990 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:49, output treesize:27 [2018-11-23 13:58:53,014 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 13:58:53,016 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 13:58:53,017 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:53,019 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:53,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:53,025 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:17 [2018-11-23 13:58:53,047 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-11-23 13:58:53,049 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 13:58:53,050 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:53,057 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:53,067 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:58:53,067 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:26 [2018-11-23 13:58:53,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-11-23 13:58:53,128 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-11-23 13:58:53,129 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:53,136 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:58:53,136 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:58:53,138 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:53,143 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:58:53,143 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:30, output treesize:3 [2018-11-23 13:58:53,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:58:53,163 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 13:58:53,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:58:53,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-23 13:58:53,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-23 13:58:53,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-23 13:58:53,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-23 13:58:53,165 INFO L87 Difference]: Start difference. First operand 113 states and 121 transitions. Second operand 11 states. [2018-11-23 13:59:04,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:59:04,357 INFO L93 Difference]: Finished difference Result 165 states and 170 transitions. [2018-11-23 13:59:04,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 13:59:04,358 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-23 13:59:04,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:59:04,359 INFO L225 Difference]: With dead ends: 165 [2018-11-23 13:59:04,359 INFO L226 Difference]: Without dead ends: 163 [2018-11-23 13:59:04,359 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2018-11-23 13:59:04,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2018-11-23 13:59:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 113. [2018-11-23 13:59:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-11-23 13:59:04,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 120 transitions. [2018-11-23 13:59:04,362 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 120 transitions. Word has length 26 [2018-11-23 13:59:04,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:59:04,363 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 120 transitions. [2018-11-23 13:59:04,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-23 13:59:04,363 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 120 transitions. [2018-11-23 13:59:04,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 13:59:04,363 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:59:04,363 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:59:04,364 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 13:59:04,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:59:04,364 INFO L82 PathProgramCache]: Analyzing trace with hash -2100184556, now seen corresponding path program 1 times [2018-11-23 13:59:04,364 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 13:59:04,367 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 13:59:04,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:59:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:59:04,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:59:04,478 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 13:59:04,478 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,486 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,487 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 13:59:04,502 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-23 13:59:04,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 13:59:04,504 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,505 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,512 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,512 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2018-11-23 13:59:04,536 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:59:04,537 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:59:04,538 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 13:59:04,538 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,550 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:23 [2018-11-23 13:59:04,573 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:59:04,577 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:59:04,577 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,581 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,614 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2018-11-23 13:59:04,618 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:59:04,621 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 13:59:04,621 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,631 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,649 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:54, output treesize:32 [2018-11-23 13:59:04,687 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 13:59:04,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 13:59:04,690 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,705 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,729 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,729 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:24 [2018-11-23 13:59:04,776 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-11-23 13:59:04,779 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 13:59:04,779 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,787 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,799 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,799 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:37, output treesize:33 [2018-11-23 13:59:04,832 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:59:04,835 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 39 [2018-11-23 13:59:04,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 9 [2018-11-23 13:59:04,839 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,847 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,859 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,859 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:46, output treesize:33 [2018-11-23 13:59:04,891 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:59:04,892 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:59:04,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 13:59:04,893 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,906 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,906 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:38, output treesize:30 [2018-11-23 13:59:04,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 13:59:04,946 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 13:59:04,946 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,950 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:04,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-11-23 13:59:04,989 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:59:04,992 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-11-23 13:59:04,992 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:05,002 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:05,018 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:05,018 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:56, output treesize:34 [2018-11-23 13:59:05,051 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 13:59:05,054 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 13:59:05,054 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:05,057 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:05,070 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 13:59:05,070 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:41, output treesize:30 [2018-11-23 13:59:05,160 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 52 [2018-11-23 13:59:05,167 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 40 [2018-11-23 13:59:05,168 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:05,221 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 13:59:05,276 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 39 [2018-11-23 13:59:05,276 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 13:59:05,308 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 13:59:05,350 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 2 xjuncts. [2018-11-23 13:59:05,350 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:43, output treesize:66 [2018-11-23 13:59:05,460 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2018-11-23 13:59:05,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:59:05,462 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:05,471 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-11-23 13:59:05,471 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:05,472 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:05,476 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:05,476 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:28, output treesize:3 [2018-11-23 13:59:05,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:59:05,502 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 13:59:05,606 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:59:05,610 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:59:05,616 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:59:05,616 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:20 [2018-11-23 13:59:11,717 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 27 [2018-11-23 13:59:17,786 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 30 [2018-11-23 13:59:23,894 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 30 [2018-11-23 13:59:30,002 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 27 [2018-11-23 13:59:38,215 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 34 [2018-11-23 13:59:38,263 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:59:38,264 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 13:59:38,264 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 3 [2018-11-23 13:59:38,264 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:38,307 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:59:38,319 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:59:38,320 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:59:38,331 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 13:59:38,368 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-11-23 13:59:38,368 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:54, output treesize:54 [2018-11-23 13:59:46,544 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 29 [2018-11-23 13:59:46,607 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-23 13:59:46,608 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 13:59:46,609 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:59:46,609 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:6 [2018-11-23 13:59:46,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:59:46,646 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 13:59:46,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 30 [2018-11-23 13:59:46,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-11-23 13:59:46,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-11-23 13:59:46,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=706, Unknown=11, NotChecked=0, Total=870 [2018-11-23 13:59:46,647 INFO L87 Difference]: Start difference. First operand 113 states and 120 transitions. Second operand 30 states. [2018-11-23 13:59:59,948 WARN L180 SmtUtils]: Spent 4.08 s on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2018-11-23 14:00:12,305 WARN L180 SmtUtils]: Spent 8.16 s on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2018-11-23 14:00:30,580 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 36 [2018-11-23 14:00:41,027 WARN L180 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 39 [2018-11-23 14:00:55,479 WARN L180 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 42 [2018-11-23 14:01:10,012 WARN L180 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 39 [2018-11-23 14:01:20,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:01:20,534 INFO L93 Difference]: Finished difference Result 305 states and 318 transitions. [2018-11-23 14:01:20,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-23 14:01:20,535 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 33 [2018-11-23 14:01:20,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:01:20,535 INFO L225 Difference]: With dead ends: 305 [2018-11-23 14:01:20,536 INFO L226 Difference]: Without dead ends: 305 [2018-11-23 14:01:20,536 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 91.5s TimeCoverageRelationStatistics Valid=596, Invalid=2462, Unknown=22, NotChecked=0, Total=3080 [2018-11-23 14:01:20,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2018-11-23 14:01:20,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 137. [2018-11-23 14:01:20,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2018-11-23 14:01:20,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 146 transitions. [2018-11-23 14:01:20,541 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 146 transitions. Word has length 33 [2018-11-23 14:01:20,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:01:20,541 INFO L480 AbstractCegarLoop]: Abstraction has 137 states and 146 transitions. [2018-11-23 14:01:20,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-11-23 14:01:20,541 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 146 transitions. [2018-11-23 14:01:20,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 14:01:20,542 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:01:20,542 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:01:20,542 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr35ASSERT_VIOLATIONMEMORY_FREE, mainErr3REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr44ENSURES_VIOLATIONMEMORY_LEAK, mainErr15REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION]=== [2018-11-23 14:01:20,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:01:20,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1064763628, now seen corresponding path program 1 times [2018-11-23 14:01:20,543 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 14:01:20,543 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f5c0eabb-52c2-4f2e-a583-23c22eac9cbd/bin-2019/uautomizer/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 14:01:20,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:01:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:01:20,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:01:20,649 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-11-23 14:01:20,650 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,653 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,653 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-23 14:01:20,671 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:01:20,672 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:01:20,673 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-11-23 14:01:20,673 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,680 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,680 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:14 [2018-11-23 14:01:20,695 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-23 14:01:20,697 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 14:01:20,697 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,699 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,710 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,710 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:23 [2018-11-23 14:01:20,755 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:01:20,764 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-11-23 14:01:20,767 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 14:01:20,768 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,773 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,779 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,780 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:45, output treesize:22 [2018-11-23 14:01:20,794 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:01:20,803 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 36 [2018-11-23 14:01:20,806 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2018-11-23 14:01:20,806 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,811 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,818 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,818 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:45, output treesize:22 [2018-11-23 14:01:20,830 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:01:20,831 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:01:20,832 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2018-11-23 14:01:20,832 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,843 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,843 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:35 [2018-11-23 14:01:20,869 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:01:20,876 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-23 14:01:20,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-23 14:01:20,879 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,891 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,914 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:20,914 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:49, output treesize:44 [2018-11-23 14:01:21,048 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 80 [2018-11-23 14:01:21,054 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 61 [2018-11-23 14:01:21,054 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:21,137 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 41 [2018-11-23 14:01:21,137 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-11-23 14:01:21,158 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:01:21,184 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-11-23 14:01:21,184 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:96, output treesize:82 [2018-11-23 14:01:21,255 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-23 14:01:21,257 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-11-23 14:01:21,257 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:21,261 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:21,265 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 14:01:21,265 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:15 [2018-11-23 14:01:21,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:01:21,324 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 14:01:21,404 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 14:01:21,415 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 14:01:21,420 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-23 14:01:21,420 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:32, output treesize:21 [2018-11-23 14:01:23,493 WARN L832 $PredicateComparison]: unable to prove that (forall ((|main_#t~mem5.offset| (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (= (bvadd (select |c_#valid| (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_main_~x~0.base) c_main_~x~0.offset))) (store |c_#memory_$Pointer$.base| .cse0 (store (select |c_#memory_$Pointer$.base| .cse0) (bvadd |main_#t~mem5.offset| (_ bv4 32)) v_DerPreprocessor_8))) c_main_~head~0.base) c_main_~head~0.offset)) (_ bv1 1)) (_ bv0 1))) is different from false [2018-11-23 14:01:25,663 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 14:01:25,671 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 14:01:25,698 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-23 14:01:25,698 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:76, output treesize:66 [2018-11-23 14:01:29,568 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-11-23 14:01:29,570 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 14:01:29,599 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 14:01:29,601 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 14:01:29,620 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-23 14:01:29,621 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:29,641 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:01:29,763 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 10 dim-0 vars, and 2 xjuncts. [2018-11-23 14:01:29,763 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:86, output treesize:108 [2018-11-23 14:01:42,064 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 63 [2018-11-23 14:01:47,220 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 61 [2018-11-23 14:01:55,319 WARN L180 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 65 [2018-11-23 14:01:55,921 WARN L180 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2018-11-23 14:01:55,934 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:55,935 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:55,935 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:55,939 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:01:55,939 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 223 [2018-11-23 14:01:55,940 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:56,136 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:56,136 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:56,139 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 14:01:56,140 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 86 [2018-11-23 14:01:56,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:56,331 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 63 [2018-11-23 14:01:56,380 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 14:01:56,380 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:56,433 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2018-11-23 14:01:56,438 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2018-11-23 14:01:56,438 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:56,462 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2018-11-23 14:01:56,462 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:56,489 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 13 [2018-11-23 14:01:56,489 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:56,501 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:01:56,539 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 72 [2018-11-23 14:01:56,570 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 66 [2018-11-23 14:01:56,575 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:56,579 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 58 [2018-11-23 14:01:56,647 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:56,650 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 12 [2018-11-23 14:01:56,650 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:56,655 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 18 [2018-11-23 14:01:56,655 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:56,705 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:01:56,810 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:56,840 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 66 [2018-11-23 14:01:57,028 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2018-11-23 14:01:57,034 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:57,050 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 40 [2018-11-23 14:01:57,051 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 2 xjuncts. [2018-11-23 14:01:57,061 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:57,077 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2018-11-23 14:01:57,078 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-11-23 14:01:57,205 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:57,209 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 31 [2018-11-23 14:01:57,209 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:57,307 INFO L267 ElimStorePlain]: Start of recursive call 15: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 14:01:57,385 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:01:57,556 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2018-11-23 14:01:57,557 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:57,560 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-11-23 14:01:57,560 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:57,564 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-23 14:01:57,564 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:57,975 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 53 treesize of output 70 [2018-11-23 14:01:57,979 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-11-23 14:01:57,979 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:58,072 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:58,108 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 66 [2018-11-23 14:01:58,270 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2018-11-23 14:01:58,279 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:58,293 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 38 [2018-11-23 14:01:58,293 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 2 xjuncts. [2018-11-23 14:01:58,418 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:58,440 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2018-11-23 14:01:58,441 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 3 xjuncts. [2018-11-23 14:01:58,450 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:58,474 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 43 [2018-11-23 14:01:58,475 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 3 xjuncts. [2018-11-23 14:01:58,629 INFO L267 ElimStorePlain]: Start of recursive call 24: 2 dim-1 vars, End of recursive call: and 8 xjuncts. [2018-11-23 14:01:58,866 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:58,875 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 49 [2018-11-23 14:01:58,939 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:58,950 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 22 [2018-11-23 14:01:58,951 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 2 xjuncts. [2018-11-23 14:01:58,961 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:58,984 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 38 [2018-11-23 14:01:58,984 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 3 xjuncts. [2018-11-23 14:01:59,065 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 8 xjuncts. [2018-11-23 14:01:59,219 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:59,245 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 60 [2018-11-23 14:01:59,394 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2018-11-23 14:01:59,401 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:59,403 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2018-11-23 14:01:59,404 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-23 14:01:59,481 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:59,494 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 34 [2018-11-23 14:01:59,495 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 2 xjuncts. [2018-11-23 14:01:59,502 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:01:59,517 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2018-11-23 14:01:59,517 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2018-11-23 14:01:59,611 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 14:01:59,675 INFO L267 ElimStorePlain]: Start of recursive call 22: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:02:00,311 INFO L267 ElimStorePlain]: Start of recursive call 10: 8 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-23 14:02:00,317 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 50 [2018-11-23 14:02:00,321 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-23 14:02:00,321 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:00,336 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2018-11-23 14:02:00,339 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:00,343 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2018-11-23 14:02:00,393 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:00,408 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 25 [2018-11-23 14:02:00,409 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 2 xjuncts. [2018-11-23 14:02:00,414 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:00,417 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 12 [2018-11-23 14:02:00,417 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:00,471 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-1 vars, End of recursive call: and 5 xjuncts. [2018-11-23 14:02:00,523 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:02:00,567 INFO L267 ElimStorePlain]: Start of recursive call 35: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:02:00,657 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-11-23 14:02:00,959 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 136 [2018-11-23 14:02:00,970 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-11-23 14:02:00,970 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:01,163 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 129 treesize of output 113 [2018-11-23 14:02:02,605 WARN L180 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2018-11-23 14:02:02,605 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-23 14:02:02,606 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-23 14:02:02,673 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 88 [2018-11-23 14:02:02,679 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:02,684 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 74 [2018-11-23 14:02:02,684 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:02,868 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:02,901 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 87 [2018-11-23 14:02:02,901 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 2 xjuncts. [2018-11-23 14:02:03,136 INFO L267 ElimStorePlain]: Start of recursive call 44: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:02:03,219 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 74 treesize of output 98 [2018-11-23 14:02:03,226 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:03,231 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 84 [2018-11-23 14:02:03,231 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:03,392 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:03,420 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 97 [2018-11-23 14:02:03,421 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 2 xjuncts. [2018-11-23 14:02:03,641 INFO L267 ElimStorePlain]: Start of recursive call 47: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:02:03,698 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 53 treesize of output 77 [2018-11-23 14:02:03,712 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:03,736 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 76 [2018-11-23 14:02:03,737 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 2 xjuncts. [2018-11-23 14:02:03,891 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:03,894 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 63 [2018-11-23 14:02:03,894 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:04,034 INFO L267 ElimStorePlain]: Start of recursive call 50: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-11-23 14:02:06,353 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 71 [2018-11-23 14:02:06,360 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:06,364 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-23 14:02:06,364 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:06,406 INFO L267 ElimStorePlain]: Start of recursive call 53: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:02:06,418 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 87 [2018-11-23 14:02:06,424 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:06,430 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-23 14:02:06,431 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:06,480 INFO L267 ElimStorePlain]: Start of recursive call 55: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:02:07,292 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 68 [2018-11-23 14:02:07,300 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2018-11-23 14:02:07,300 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:07,349 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:02:07,370 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 84 [2018-11-23 14:02:07,497 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-11-23 14:02:07,507 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2018-11-23 14:02:07,508 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:07,574 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2018-11-23 14:02:07,574 INFO L267 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:07,622 INFO L267 ElimStorePlain]: Start of recursive call 59: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:02:08,504 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 78 [2018-11-23 14:02:08,505 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 2 xjuncts. [2018-11-23 14:02:08,572 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 86 treesize of output 94 [2018-11-23 14:02:08,884 WARN L180 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-11-23 14:02:08,885 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-23 14:02:08,885 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-23 14:02:08,893 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 63 [2018-11-23 14:02:08,893 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:08,903 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 59 [2018-11-23 14:02:08,903 INFO L267 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:09,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 50 [2018-11-23 14:02:09,123 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:09,313 INFO L267 ElimStorePlain]: Start of recursive call 63: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 14:02:10,128 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2018-11-23 14:02:10,139 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-23 14:02:10,139 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:10,178 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:10,181 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-23 14:02:10,182 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:10,193 INFO L267 ElimStorePlain]: Start of recursive call 67: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:02:10,234 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 58 [2018-11-23 14:02:10,242 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:10,259 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 43 [2018-11-23 14:02:10,259 INFO L267 ElimStorePlain]: Start of recursive call 71: End of recursive call: and 2 xjuncts. [2018-11-23 14:02:10,460 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:10,463 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 39 [2018-11-23 14:02:10,463 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:10,629 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:10,633 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 36 [2018-11-23 14:02:10,634 INFO L267 ElimStorePlain]: Start of recursive call 73: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:10,830 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2018-11-23 14:02:10,830 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:10,977 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-11-23 14:02:10,977 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:11,115 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-11-23 14:02:11,116 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:11,119 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-23 14:02:11,120 INFO L267 ElimStorePlain]: Start of recursive call 77: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:11,235 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:11,237 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:11,240 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:11,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 53 [2018-11-23 14:02:11,263 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 3 xjuncts. [2018-11-23 14:02:11,430 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 14:02:11,430 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:11,515 INFO L267 ElimStorePlain]: Start of recursive call 70: 8 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-11-23 14:02:11,525 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2018-11-23 14:02:11,532 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-23 14:02:11,533 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:11,559 INFO L683 Elim1Store]: detected equality via solver [2018-11-23 14:02:11,562 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 5 [2018-11-23 14:02:11,562 INFO L267 ElimStorePlain]: Start of recursive call 82: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:11,572 INFO L267 ElimStorePlain]: Start of recursive call 80: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:02:12,417 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 69 [2018-11-23 14:02:12,426 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2018-11-23 14:02:12,426 INFO L267 ElimStorePlain]: Start of recursive call 84: End of recursive call: and 1 xjuncts. [2018-11-23 14:02:13,272 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 14:02:13,272 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: nested self-update not yet implemented: (store v_prenex_41 (bvadd v_prenex_3 (_ bv4 32)) v_prenex_4) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:219) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacement(DerPreprocessor.java:210) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.convert(DerPreprocessor.java:191) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:211) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 14:02:13,275 INFO L168 Benchmark]: Toolchain (without parser) took 207962.26 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 234.4 MB). Free memory was 944.4 MB in the beginning and 1.1 GB in the end (delta: -199.7 MB). Peak memory consumption was 421.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:13,276 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:02:13,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.67 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 922.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:13,276 INFO L168 Benchmark]: Boogie Preprocessor took 96.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 922.9 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:13,276 INFO L168 Benchmark]: RCFGBuilder took 528.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:13,277 INFO L168 Benchmark]: TraceAbstraction took 206997.64 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 113.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -93.5 MB). Peak memory consumption was 407.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:02:13,278 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 336.67 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 922.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 96.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 922.9 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 528.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 206997.64 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 113.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -93.5 MB). Peak memory consumption was 407.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: nested self-update not yet implemented: (store v_prenex_41 (bvadd v_prenex_3 (_ bv4 32)) v_prenex_4) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: nested self-update not yet implemented: (store v_prenex_41 (bvadd v_prenex_3 (_ bv4 32)) v_prenex_4): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.DerPreprocessor.constructReplacementForStoreCase(DerPreprocessor.java:248) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...