./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9b2ac5a3750101337b54db0fb388c91c5409545e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9b2ac5a3750101337b54db0fb388c91c5409545e ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_42 term size 12 --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:20:09,438 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:20:09,439 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:20:09,446 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:20:09,446 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:20:09,447 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:20:09,448 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:20:09,449 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:20:09,450 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:20:09,450 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:20:09,451 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:20:09,451 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:20:09,452 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:20:09,453 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:20:09,453 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:20:09,454 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:20:09,454 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:20:09,456 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:20:09,457 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:20:09,458 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:20:09,458 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:20:09,459 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:20:09,461 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:20:09,461 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:20:09,461 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:20:09,462 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:20:09,462 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:20:09,463 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:20:09,464 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:20:09,464 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:20:09,465 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:20:09,465 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:20:09,465 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:20:09,465 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:20:09,466 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:20:09,467 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:20:09,467 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 07:20:09,477 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:20:09,477 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:20:09,478 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:20:09,478 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:20:09,478 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:20:09,478 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:20:09,479 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:20:09,479 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:20:09,479 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:20:09,479 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:20:09,479 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:20:09,479 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:20:09,479 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:20:09,479 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:20:09,480 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:20:09,480 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:20:09,480 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:20:09,480 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:20:09,480 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:20:09,480 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:20:09,480 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:20:09,480 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:20:09,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:20:09,481 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:20:09,481 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:20:09,481 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:20:09,481 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:20:09,481 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:20:09,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:20:09,481 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 ! call(__VERIFIER_error())) ) 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 -> 9b2ac5a3750101337b54db0fb388c91c5409545e [2018-11-10 07:20:09,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:20:09,511 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:20:09,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:20:09,514 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:20:09,514 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:20:09,515 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/../../sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 07:20:09,550 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/data/4d24a99ae/8805aabb00d14b23b9e778c7b524ae87/FLAG875bcfdd8 [2018-11-10 07:20:09,992 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:20:09,992 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 07:20:10,001 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/data/4d24a99ae/8805aabb00d14b23b9e778c7b524ae87/FLAG875bcfdd8 [2018-11-10 07:20:10,011 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/data/4d24a99ae/8805aabb00d14b23b9e778c7b524ae87 [2018-11-10 07:20:10,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:20:10,014 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:20:10,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:20:10,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:20:10,017 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:20:10,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@294cde19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10, skipping insertion in model container [2018-11-10 07:20:10,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:20:10,052 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:20:10,237 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:20:10,244 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:20:10,278 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:20:10,302 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:20:10,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10 WrapperNode [2018-11-10 07:20:10,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:20:10,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:20:10,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:20:10,303 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:20:10,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:20:10,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:20:10,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:20:10,383 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:20:10,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:10,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:20:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:20:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-10 07:20:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-10 07:20:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-10 07:20:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-11-10 07:20:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2018-11-10 07:20:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2018-11-10 07:20:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_prepend [2018-11-10 07:20:10,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:20:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:20:10,418 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-10 07:20:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-10 07:20:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-10 07:20:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-10 07:20:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-10 07:20:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-10 07:20:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-10 07:20:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-10 07:20:10,419 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-10 07:20:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-10 07:20:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-10 07:20:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-10 07:20:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-10 07:20:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-10 07:20:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-10 07:20:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-10 07:20:10,420 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-10 07:20:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-10 07:20:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-10 07:20:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-10 07:20:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-10 07:20:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-10 07:20:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-10 07:20:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-10 07:20:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-10 07:20:10,421 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-10 07:20:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-10 07:20:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-10 07:20:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-10 07:20:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-10 07:20:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-10 07:20:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-10 07:20:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-10 07:20:10,422 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-10 07:20:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-10 07:20:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-10 07:20:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-10 07:20:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-10 07:20:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-10 07:20:10,425 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-10 07:20:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-10 07:20:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-10 07:20:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-10 07:20:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-10 07:20:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-10 07:20:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-10 07:20:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-10 07:20:10,426 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-10 07:20:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-10 07:20:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-10 07:20:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-10 07:20:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-10 07:20:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-10 07:20:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-10 07:20:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-10 07:20:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-10 07:20:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-10 07:20:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-10 07:20:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-10 07:20:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-10 07:20:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-10 07:20:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-10 07:20:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-10 07:20:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-10 07:20:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-10 07:20:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 07:20:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-10 07:20:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-10 07:20:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-10 07:20:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-10 07:20:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-10 07:20:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-10 07:20:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-10 07:20:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-10 07:20:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-10 07:20:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-10 07:20:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-10 07:20:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-10 07:20:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-10 07:20:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-10 07:20:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-10 07:20:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-10 07:20:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-10 07:20:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-10 07:20:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-10 07:20:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-10 07:20:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-10 07:20:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-10 07:20:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-10 07:20:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-10 07:20:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-10 07:20:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-10 07:20:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-10 07:20:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-10 07:20:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-10 07:20:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-10 07:20:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-10 07:20:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-10 07:20:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-10 07:20:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-10 07:20:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-10 07:20:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-10 07:20:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-10 07:20:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-10 07:20:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-10 07:20:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-11-10 07:20:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 07:20:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 07:20:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 07:20:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2018-11-10 07:20:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2018-11-10 07:20:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 07:20:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 07:20:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure dll_prepend [2018-11-10 07:20:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:20:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 07:20:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:20:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:20:10,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 07:20:10,761 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:20:10,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:20:10 BoogieIcfgContainer [2018-11-10 07:20:10,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:20:10,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:20:10,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:20:10,766 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:20:10,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:20:10" (1/3) ... [2018-11-10 07:20:10,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be173d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:20:10, skipping insertion in model container [2018-11-10 07:20:10,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (2/3) ... [2018-11-10 07:20:10,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be173d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:20:10, skipping insertion in model container [2018-11-10 07:20:10,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:20:10" (3/3) ... [2018-11-10 07:20:10,770 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 07:20:10,775 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:20:10,780 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:20:10,792 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:20:10,811 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:20:10,812 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:20:10,812 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:20:10,812 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:20:10,812 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:20:10,812 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:20:10,812 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:20:10,812 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:20:10,812 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:20:10,827 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2018-11-10 07:20:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 07:20:10,831 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:10,831 INFO L375 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, 1] [2018-11-10 07:20:10,833 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:10,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:10,836 INFO L82 PathProgramCache]: Analyzing trace with hash 789474707, now seen corresponding path program 1 times [2018-11-10 07:20:10,837 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:20:10,838 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:20:10,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:10,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:10,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:10,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:10,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:20:10,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:20:10,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:20:10,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:20:10,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:20:10,974 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2018-11-10 07:20:10,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:10,992 INFO L93 Difference]: Finished difference Result 147 states and 164 transitions. [2018-11-10 07:20:10,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:20:10,993 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2018-11-10 07:20:10,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:10,998 INFO L225 Difference]: With dead ends: 147 [2018-11-10 07:20:10,999 INFO L226 Difference]: Without dead ends: 61 [2018-11-10 07:20:11,001 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:20:11,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-11-10 07:20:11,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-11-10 07:20:11,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-10 07:20:11,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2018-11-10 07:20:11,027 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 42 [2018-11-10 07:20:11,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:11,027 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2018-11-10 07:20:11,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:20:11,027 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2018-11-10 07:20:11,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-10 07:20:11,028 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:11,028 INFO L375 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, 1, 1, 1] [2018-11-10 07:20:11,029 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:11,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:11,029 INFO L82 PathProgramCache]: Analyzing trace with hash -2011295662, now seen corresponding path program 1 times [2018-11-10 07:20:11,029 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:20:11,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:20:11,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:11,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:11,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:11,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:20:11,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-10 07:20:11,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-10 07:20:11,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-10 07:20:11,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-11-10 07:20:11,213 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 12 states. [2018-11-10 07:20:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:11,433 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2018-11-10 07:20:11,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 07:20:11,434 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2018-11-10 07:20:11,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:11,435 INFO L225 Difference]: With dead ends: 72 [2018-11-10 07:20:11,435 INFO L226 Difference]: Without dead ends: 69 [2018-11-10 07:20:11,436 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2018-11-10 07:20:11,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-10 07:20:11,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 63. [2018-11-10 07:20:11,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-10 07:20:11,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2018-11-10 07:20:11,443 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 44 [2018-11-10 07:20:11,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:11,444 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2018-11-10 07:20:11,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-10 07:20:11,444 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2018-11-10 07:20:11,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-10 07:20:11,445 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:11,445 INFO L375 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, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:11,445 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:11,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:11,445 INFO L82 PathProgramCache]: Analyzing trace with hash 624398241, now seen corresponding path program 1 times [2018-11-10 07:20:11,446 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:20:11,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:20:11,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:11,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:11,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:11,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:11,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:20:11,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 07:20:11,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 07:20:11,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 07:20:11,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 07:20:11,522 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 5 states. [2018-11-10 07:20:11,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:11,544 INFO L93 Difference]: Finished difference Result 117 states and 125 transitions. [2018-11-10 07:20:11,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 07:20:11,545 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-11-10 07:20:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:11,545 INFO L225 Difference]: With dead ends: 117 [2018-11-10 07:20:11,546 INFO L226 Difference]: Without dead ends: 74 [2018-11-10 07:20:11,546 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 07:20:11,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-10 07:20:11,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 65. [2018-11-10 07:20:11,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-10 07:20:11,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2018-11-10 07:20:11,552 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 47 [2018-11-10 07:20:11,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:11,552 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2018-11-10 07:20:11,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 07:20:11,552 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2018-11-10 07:20:11,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-10 07:20:11,553 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:11,554 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:11,554 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:11,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:11,554 INFO L82 PathProgramCache]: Analyzing trace with hash 793346797, now seen corresponding path program 1 times [2018-11-10 07:20:11,554 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:20:11,555 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:20:11,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:11,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:11,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:11,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:11,640 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:20:11,640 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:11,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:11,695 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:11,734 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:20:11,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-10 07:20:11,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 07:20:11,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 07:20:11,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-10 07:20:11,735 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 6 states. [2018-11-10 07:20:11,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:11,786 INFO L93 Difference]: Finished difference Result 128 states and 137 transitions. [2018-11-10 07:20:11,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 07:20:11,787 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-11-10 07:20:11,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:11,787 INFO L225 Difference]: With dead ends: 128 [2018-11-10 07:20:11,788 INFO L226 Difference]: Without dead ends: 85 [2018-11-10 07:20:11,788 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-10 07:20:11,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-11-10 07:20:11,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 76. [2018-11-10 07:20:11,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-10 07:20:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2018-11-10 07:20:11,795 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 57 [2018-11-10 07:20:11,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:11,795 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2018-11-10 07:20:11,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 07:20:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2018-11-10 07:20:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-10 07:20:11,797 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:11,797 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:11,797 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:11,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:11,798 INFO L82 PathProgramCache]: Analyzing trace with hash -508770503, now seen corresponding path program 2 times [2018-11-10 07:20:11,798 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:20:11,798 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:20:11,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:11,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:11,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:11,862 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:11,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:20:11,862 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:11,873 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 07:20:11,908 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-10 07:20:11,908 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:20:11,913 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:11,990 INFO L477 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 [2018-11-10 07:20:11,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:11,995 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:11,997 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:11,998 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:11,999 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-11-10 07:20:12,059 INFO L477 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 [2018-11-10 07:20:12,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:12,063 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,065 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,072 INFO L477 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 [2018-11-10 07:20:12,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:12,075 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,077 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,087 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,087 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:30, output treesize:15 [2018-11-10 07:20:12,131 INFO L477 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 [2018-11-10 07:20:12,134 INFO L477 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 [2018-11-10 07:20:12,134 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,136 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,141 INFO L477 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 [2018-11-10 07:20:12,142 INFO L477 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 [2018-11-10 07:20:12,143 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,144 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,146 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,147 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:33, output treesize:11 [2018-11-10 07:20:12,175 INFO L477 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 [2018-11-10 07:20:12,177 INFO L477 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 [2018-11-10 07:20:12,177 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,178 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,180 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:12,180 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:18, output treesize:7 [2018-11-10 07:20:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-10 07:20:12,212 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 07:20:12,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-11-10 07:20:12,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-10 07:20:12,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-10 07:20:12,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2018-11-10 07:20:12,213 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand 18 states. [2018-11-10 07:20:12,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:12,540 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2018-11-10 07:20:12,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-10 07:20:12,540 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 67 [2018-11-10 07:20:12,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:12,541 INFO L225 Difference]: With dead ends: 134 [2018-11-10 07:20:12,541 INFO L226 Difference]: Without dead ends: 80 [2018-11-10 07:20:12,543 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2018-11-10 07:20:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-10 07:20:12,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-11-10 07:20:12,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-11-10 07:20:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 84 transitions. [2018-11-10 07:20:12,549 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 84 transitions. Word has length 67 [2018-11-10 07:20:12,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:12,549 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 84 transitions. [2018-11-10 07:20:12,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-10 07:20:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 84 transitions. [2018-11-10 07:20:12,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-11-10 07:20:12,550 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:12,551 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:12,551 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:12,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:12,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2044550791, now seen corresponding path program 1 times [2018-11-10 07:20:12,551 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:20:12,551 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:20:12,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:12,553 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 07:20:12,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:13,317 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-10 07:20:13,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:20:13,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-11-10 07:20:13,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-10 07:20:13,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-10 07:20:13,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2018-11-10 07:20:13,318 INFO L87 Difference]: Start difference. First operand 80 states and 84 transitions. Second operand 22 states. [2018-11-10 07:20:13,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:13,888 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2018-11-10 07:20:13,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-10 07:20:13,889 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 71 [2018-11-10 07:20:13,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:13,889 INFO L225 Difference]: With dead ends: 100 [2018-11-10 07:20:13,889 INFO L226 Difference]: Without dead ends: 80 [2018-11-10 07:20:13,890 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=945, Unknown=0, NotChecked=0, Total=1056 [2018-11-10 07:20:13,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-10 07:20:13,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-11-10 07:20:13,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-11-10 07:20:13,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2018-11-10 07:20:13,895 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 71 [2018-11-10 07:20:13,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:13,895 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2018-11-10 07:20:13,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-10 07:20:13,895 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2018-11-10 07:20:13,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-10 07:20:13,895 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:13,895 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:13,896 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:13,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:13,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1126015785, now seen corresponding path program 1 times [2018-11-10 07:20:13,896 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:20:13,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:20:13,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:13,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:13,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:20:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:14,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:20:14,800 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:14,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:14,836 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:14,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:14,840 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:14,844 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:14,844 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 07:20:15,215 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:15,216 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:15,217 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:15,217 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 42 [2018-11-10 07:20:15,220 INFO L477 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 30 treesize of output 34 [2018-11-10 07:20:15,220 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:15,226 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:15,232 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. [2018-11-10 07:20:15,233 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:35 [2018-11-10 07:20:15,277 INFO L477 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 11 treesize of output 8 [2018-11-10 07:20:15,278 INFO L477 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 [2018-11-10 07:20:15,278 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:15,279 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:15,288 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. [2018-11-10 07:20:15,288 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:46, output treesize:51 [2018-11-10 07:20:15,898 INFO L477 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 [2018-11-10 07:20:15,900 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:15,901 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:15,904 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:15,914 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. [2018-11-10 07:20:15,914 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:296, output treesize:292 [2018-11-10 07:20:16,104 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 56 [2018-11-10 07:20:16,108 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:16,109 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:16,109 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:16,110 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:16,111 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 37 [2018-11-10 07:20:16,111 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:16,137 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:16,138 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:16,153 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:16,153 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:20:16,154 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 175 [2018-11-10 07:20:16,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 77 treesize of output 67 [2018-11-10 07:20:16,204 INFO L477 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 67 treesize of output 64 [2018-11-10 07:20:16,204 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:16,212 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:16,234 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 98 [2018-11-10 07:20:16,237 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2018-11-10 07:20:16,440 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:20:16,441 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_6 term size 13 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) 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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) 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:234) 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:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) [2018-11-10 07:20:16,443 INFO L168 Benchmark]: Toolchain (without parser) took 6429.57 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 297.8 MB). Free memory was 957.7 MB in the beginning and 843.2 MB in the end (delta: 114.4 MB). Peak memory consumption was 412.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:20:16,444 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:20:16,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.85 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 929.7 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:20:16,444 INFO L168 Benchmark]: Boogie Preprocessor took 80.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 929.7 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:20:16,445 INFO L168 Benchmark]: RCFGBuilder took 379.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:20:16,448 INFO L168 Benchmark]: TraceAbstraction took 5679.34 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 176.7 MB). Free memory was 1.1 GB in the beginning and 843.2 MB in the end (delta: 215.2 MB). Peak memory consumption was 391.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:20:16,451 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.85 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 929.7 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 929.7 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 379.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.2 MB). Peak memory consumption was 56.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5679.34 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 176.7 MB). Free memory was 1.1 GB in the beginning and 843.2 MB in the end (delta: 215.2 MB). Peak memory consumption was 391.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_6 term size 13 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_6 term size 13: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:20:17,858 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:20:17,859 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:20:17,866 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:20:17,866 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:20:17,867 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:20:17,867 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:20:17,869 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:20:17,869 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:20:17,870 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:20:17,871 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:20:17,871 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:20:17,872 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:20:17,873 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:20:17,873 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:20:17,874 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:20:17,875 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:20:17,876 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:20:17,877 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:20:17,879 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:20:17,879 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:20:17,880 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:20:17,882 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:20:17,882 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:20:17,882 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:20:17,883 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:20:17,884 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:20:17,885 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:20:17,885 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:20:17,886 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:20:17,886 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:20:17,886 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:20:17,887 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:20:17,887 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:20:17,888 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:20:17,888 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:20:17,888 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 07:20:17,899 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:20:17,899 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:20:17,900 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:20:17,900 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:20:17,901 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:20:17,901 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:20:17,901 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:20:17,901 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:20:17,901 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:20:17,901 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:20:17,901 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:20:17,902 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:20:17,902 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:20:17,902 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:20:17,902 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:20:17,902 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:20:17,902 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:20:17,902 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:20:17,904 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:20:17,904 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:20:17,904 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:20:17,904 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:20:17,905 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:20:17,905 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:20:17,905 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:20:17,905 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:20:17,905 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:20:17,905 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 07:20:17,905 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:20:17,905 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:20:17,906 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:20:17,906 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 ! call(__VERIFIER_error())) ) 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 -> 9b2ac5a3750101337b54db0fb388c91c5409545e [2018-11-10 07:20:17,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:20:17,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:20:17,948 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:20:17,949 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:20:17,949 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:20:17,950 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/../../sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 07:20:17,995 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/data/0f140c6ce/1bfc497d15924bd3b82df2faac559a1e/FLAG37d35e886 [2018-11-10 07:20:18,350 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:20:18,351 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/sv-benchmarks/c/list-simple/dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 07:20:18,358 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/data/0f140c6ce/1bfc497d15924bd3b82df2faac559a1e/FLAG37d35e886 [2018-11-10 07:20:18,367 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/bin-2019/uautomizer/data/0f140c6ce/1bfc497d15924bd3b82df2faac559a1e [2018-11-10 07:20:18,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:20:18,370 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:20:18,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:20:18,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:20:18,373 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:20:18,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:20:18" (1/1) ... [2018-11-10 07:20:18,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a2a1194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:18, skipping insertion in model container [2018-11-10 07:20:18,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:20:18" (1/1) ... [2018-11-10 07:20:18,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:20:18,408 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:20:18,604 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:20:18,613 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:20:18,648 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:20:18,675 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:20:18,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:18 WrapperNode [2018-11-10 07:20:18,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:20:18,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:20:18,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:20:18,676 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:20:18,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:18" (1/1) ... [2018-11-10 07:20:18,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:18" (1/1) ... [2018-11-10 07:20:18,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:18" (1/1) ... [2018-11-10 07:20:18,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:18" (1/1) ... [2018-11-10 07:20:18,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:18" (1/1) ... [2018-11-10 07:20:18,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:18" (1/1) ... [2018-11-10 07:20:18,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:18" (1/1) ... [2018-11-10 07:20:18,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:20:18,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:20:18,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:20:18,760 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:20:18,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:18,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:20:18,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:20:18,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-11-10 07:20:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-11-10 07:20:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-11-10 07:20:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2018-11-10 07:20:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2018-11-10 07:20:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2018-11-10 07:20:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_prepend [2018-11-10 07:20:18,798 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:20:18,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:20:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-11-10 07:20:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-11-10 07:20:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-10 07:20:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-10 07:20:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-10 07:20:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-10 07:20:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-10 07:20:18,799 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-10 07:20:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-10 07:20:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-10 07:20:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-10 07:20:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-10 07:20:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-10 07:20:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-10 07:20:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-10 07:20:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-10 07:20:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-10 07:20:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-10 07:20:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-10 07:20:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-10 07:20:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-10 07:20:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-10 07:20:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-10 07:20:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-10 07:20:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-10 07:20:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-10 07:20:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-10 07:20:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-10 07:20:18,802 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-10 07:20:18,804 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-10 07:20:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-10 07:20:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-10 07:20:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-10 07:20:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-10 07:20:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-10 07:20:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-10 07:20:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-10 07:20:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-10 07:20:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-10 07:20:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-10 07:20:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-10 07:20:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-10 07:20:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-10 07:20:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-10 07:20:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-10 07:20:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-10 07:20:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-10 07:20:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-10 07:20:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-10 07:20:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2018-11-10 07:20:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-10 07:20:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-10 07:20:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2018-11-10 07:20:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-10 07:20:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-10 07:20:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2018-11-10 07:20:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-10 07:20:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-10 07:20:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-10 07:20:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-10 07:20:18,807 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-10 07:20:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-10 07:20:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-10 07:20:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-10 07:20:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-10 07:20:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-10 07:20:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-10 07:20:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-10 07:20:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-10 07:20:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-10 07:20:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-10 07:20:18,808 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-10 07:20:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-10 07:20:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-10 07:20:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-10 07:20:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-10 07:20:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-10 07:20:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-10 07:20:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-10 07:20:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-10 07:20:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-10 07:20:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-10 07:20:18,809 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-10 07:20:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-10 07:20:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-10 07:20:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-10 07:20:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-10 07:20:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-10 07:20:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-10 07:20:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-10 07:20:18,810 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-10 07:20:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-10 07:20:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-10 07:20:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-10 07:20:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2018-11-10 07:20:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 07:20:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 07:20:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-10 07:20:18,811 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2018-11-10 07:20:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2018-11-10 07:20:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 07:20:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 07:20:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure dll_prepend [2018-11-10 07:20:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:20:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-10 07:20:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:20:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:20:18,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-10 07:20:19,190 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:20:19,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:20:19 BoogieIcfgContainer [2018-11-10 07:20:19,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:20:19,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:20:19,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:20:19,193 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:20:19,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:20:18" (1/3) ... [2018-11-10 07:20:19,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521d8cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:20:19, skipping insertion in model container [2018-11-10 07:20:19,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:18" (2/3) ... [2018-11-10 07:20:19,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521d8cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:20:19, skipping insertion in model container [2018-11-10 07:20:19,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:20:19" (3/3) ... [2018-11-10 07:20:19,195 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_prepend_equal_true-unreach-call_true-valid-memsafety.i [2018-11-10 07:20:19,201 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:20:19,205 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:20:19,214 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:20:19,234 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:20:19,234 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:20:19,235 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:20:19,235 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:20:19,235 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:20:19,235 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:20:19,235 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:20:19,235 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:20:19,235 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:20:19,246 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2018-11-10 07:20:19,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-10 07:20:19,251 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:19,252 INFO L375 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, 1] [2018-11-10 07:20:19,254 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:19,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:19,257 INFO L82 PathProgramCache]: Analyzing trace with hash 789474707, now seen corresponding path program 1 times [2018-11-10 07:20:19,260 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:20:19,260 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:19,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:19,346 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:19,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:19,364 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:20:19,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:20:19,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:20:19,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:20:19,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:20:19,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:20:19,380 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2018-11-10 07:20:19,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:19,399 INFO L93 Difference]: Finished difference Result 147 states and 164 transitions. [2018-11-10 07:20:19,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:20:19,400 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2018-11-10 07:20:19,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:19,405 INFO L225 Difference]: With dead ends: 147 [2018-11-10 07:20:19,405 INFO L226 Difference]: Without dead ends: 61 [2018-11-10 07:20:19,408 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:20:19,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-11-10 07:20:19,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-11-10 07:20:19,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-10 07:20:19,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2018-11-10 07:20:19,433 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 42 [2018-11-10 07:20:19,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:19,433 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2018-11-10 07:20:19,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:20:19,433 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2018-11-10 07:20:19,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-10 07:20:19,434 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:19,434 INFO L375 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, 1, 1, 1] [2018-11-10 07:20:19,434 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:19,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:19,435 INFO L82 PathProgramCache]: Analyzing trace with hash -2011295662, now seen corresponding path program 1 times [2018-11-10 07:20:19,435 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:20:19,435 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:19,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:19,518 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:19,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:19,584 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:20:19,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:20:19,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 07:20:19,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 07:20:19,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 07:20:19,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 07:20:19,587 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 5 states. [2018-11-10 07:20:19,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:19,637 INFO L93 Difference]: Finished difference Result 113 states and 121 transitions. [2018-11-10 07:20:19,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 07:20:19,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-11-10 07:20:19,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:19,639 INFO L225 Difference]: With dead ends: 113 [2018-11-10 07:20:19,639 INFO L226 Difference]: Without dead ends: 72 [2018-11-10 07:20:19,640 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 07:20:19,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-10 07:20:19,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 63. [2018-11-10 07:20:19,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-10 07:20:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2018-11-10 07:20:19,648 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 44 [2018-11-10 07:20:19,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:19,648 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2018-11-10 07:20:19,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 07:20:19,648 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2018-11-10 07:20:19,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-10 07:20:19,650 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:19,650 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:19,650 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:19,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:19,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1194999674, now seen corresponding path program 1 times [2018-11-10 07:20:19,651 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:20:19,651 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:19,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:19,751 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:19,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:19,824 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:20:19,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:19,959 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:20:19,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-11-10 07:20:19,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 07:20:19,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 07:20:19,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-10 07:20:19,960 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand 9 states. [2018-11-10 07:20:20,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:20,057 INFO L93 Difference]: Finished difference Result 124 states and 133 transitions. [2018-11-10 07:20:20,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 07:20:20,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2018-11-10 07:20:20,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:20,059 INFO L225 Difference]: With dead ends: 124 [2018-11-10 07:20:20,059 INFO L226 Difference]: Without dead ends: 83 [2018-11-10 07:20:20,060 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-10 07:20:20,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-10 07:20:20,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 74. [2018-11-10 07:20:20,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-10 07:20:20,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2018-11-10 07:20:20,067 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 54 [2018-11-10 07:20:20,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:20,067 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2018-11-10 07:20:20,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 07:20:20,067 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2018-11-10 07:20:20,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-10 07:20:20,068 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:20,068 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:20,069 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:20,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:20,069 INFO L82 PathProgramCache]: Analyzing trace with hash -33177670, now seen corresponding path program 2 times [2018-11-10 07:20:20,069 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:20:20,069 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:20,081 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-10 07:20:20,146 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-10 07:20:20,147 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:20:20,155 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:20,280 INFO L477 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 [2018-11-10 07:20:20,284 INFO L477 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 [2018-11-10 07:20:20,284 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:20,299 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:20,305 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:20,305 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2018-11-10 07:20:20,356 INFO L477 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 [2018-11-10 07:20:20,358 INFO L477 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 [2018-11-10 07:20:20,359 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:20,360 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:20,361 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:20,361 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-10 07:20:20,392 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-10 07:20:20,392 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:20:20,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:20:20,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-10 07:20:20,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-10 07:20:20,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-10 07:20:20,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2018-11-10 07:20:20,394 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand 13 states. [2018-11-10 07:20:20,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:20,704 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2018-11-10 07:20:20,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 07:20:20,705 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2018-11-10 07:20:20,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:20,706 INFO L225 Difference]: With dead ends: 85 [2018-11-10 07:20:20,706 INFO L226 Difference]: Without dead ends: 82 [2018-11-10 07:20:20,707 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-11-10 07:20:20,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-11-10 07:20:20,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 76. [2018-11-10 07:20:20,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-10 07:20:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2018-11-10 07:20:20,714 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 64 [2018-11-10 07:20:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:20,715 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2018-11-10 07:20:20,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-10 07:20:20,715 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2018-11-10 07:20:20,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-10 07:20:20,716 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:20,716 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:20,716 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:20,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:20,717 INFO L82 PathProgramCache]: Analyzing trace with hash -508770503, now seen corresponding path program 1 times [2018-11-10 07:20:20,717 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:20:20,717 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:20,732 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 07:20:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:20,771 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:20,786 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:20,786 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:20:20,825 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:20:20,831 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:20:20,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-11-10 07:20:20,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 07:20:20,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 07:20:20,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 07:20:20,832 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand 5 states. [2018-11-10 07:20:20,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:20,886 INFO L93 Difference]: Finished difference Result 130 states and 139 transitions. [2018-11-10 07:20:20,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 07:20:20,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2018-11-10 07:20:20,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:20,888 INFO L225 Difference]: With dead ends: 130 [2018-11-10 07:20:20,888 INFO L226 Difference]: Without dead ends: 76 [2018-11-10 07:20:20,888 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 07:20:20,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-10 07:20:20,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-11-10 07:20:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-10 07:20:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2018-11-10 07:20:20,895 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 67 [2018-11-10 07:20:20,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:20,896 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2018-11-10 07:20:20,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 07:20:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2018-11-10 07:20:20,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-11-10 07:20:20,898 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:20,898 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:20,898 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:20,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:20,898 INFO L82 PathProgramCache]: Analyzing trace with hash 2128882232, now seen corresponding path program 1 times [2018-11-10 07:20:20,899 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:20:20,899 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:20,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:21,011 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:21,070 INFO L477 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 [2018-11-10 07:20:21,072 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:21,072 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,074 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,078 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,078 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-11-10 07:20:21,160 INFO L477 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 [2018-11-10 07:20:21,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:21,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,167 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,178 INFO L477 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 [2018-11-10 07:20:21,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:21,182 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,185 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,192 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,192 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2018-11-10 07:20:21,257 INFO L477 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 [2018-11-10 07:20:21,259 INFO L477 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 [2018-11-10 07:20:21,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,262 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,271 INFO L477 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 [2018-11-10 07:20:21,273 INFO L477 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 [2018-11-10 07:20:21,273 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,274 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,279 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,279 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:38, output treesize:16 [2018-11-10 07:20:21,325 INFO L477 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 [2018-11-10 07:20:21,327 INFO L477 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 [2018-11-10 07:20:21,328 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,329 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,332 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:21,332 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:9 [2018-11-10 07:20:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-11-10 07:20:21,359 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:20:21,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:20:21,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-11-10 07:20:21,361 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-10 07:20:21,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-10 07:20:21,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2018-11-10 07:20:21,361 INFO L87 Difference]: Start difference. First operand 76 states and 80 transitions. Second operand 17 states. [2018-11-10 07:20:21,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:21,869 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2018-11-10 07:20:21,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-10 07:20:21,870 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 68 [2018-11-10 07:20:21,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:21,870 INFO L225 Difference]: With dead ends: 82 [2018-11-10 07:20:21,871 INFO L226 Difference]: Without dead ends: 80 [2018-11-10 07:20:21,871 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2018-11-10 07:20:21,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-10 07:20:21,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-11-10 07:20:21,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-11-10 07:20:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 84 transitions. [2018-11-10 07:20:21,875 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 84 transitions. Word has length 68 [2018-11-10 07:20:21,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:21,875 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 84 transitions. [2018-11-10 07:20:21,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-10 07:20:21,875 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 84 transitions. [2018-11-10 07:20:21,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-11-10 07:20:21,876 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:21,876 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:21,876 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:21,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:21,876 INFO L82 PathProgramCache]: Analyzing trace with hash 2044550791, now seen corresponding path program 1 times [2018-11-10 07:20:21,877 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:20:21,877 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:21,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:21,985 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:22,027 INFO L477 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 [2018-11-10 07:20:22,043 INFO L477 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 [2018-11-10 07:20:22,043 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:22,045 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:22,052 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:22,052 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:12 [2018-11-10 07:20:22,578 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-10 07:20:22,578 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:20:22,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:20:22,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-11-10 07:20:22,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-10 07:20:22,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-10 07:20:22,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=373, Unknown=3, NotChecked=0, Total=420 [2018-11-10 07:20:22,581 INFO L87 Difference]: Start difference. First operand 80 states and 84 transitions. Second operand 21 states. [2018-11-10 07:20:24,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:24,755 INFO L93 Difference]: Finished difference Result 100 states and 105 transitions. [2018-11-10 07:20:24,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-10 07:20:24,756 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 71 [2018-11-10 07:20:24,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:24,757 INFO L225 Difference]: With dead ends: 100 [2018-11-10 07:20:24,757 INFO L226 Difference]: Without dead ends: 80 [2018-11-10 07:20:24,758 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=890, Unknown=3, NotChecked=0, Total=992 [2018-11-10 07:20:24,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-10 07:20:24,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-11-10 07:20:24,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-11-10 07:20:24,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2018-11-10 07:20:24,764 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 71 [2018-11-10 07:20:24,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:24,764 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2018-11-10 07:20:24,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-10 07:20:24,764 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2018-11-10 07:20:24,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-10 07:20:24,765 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:24,765 INFO L375 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:24,766 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:24,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:24,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1126015785, now seen corresponding path program 1 times [2018-11-10 07:20:24,766 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:20:24,766 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:24,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:24,899 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:24,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:24,902 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:24,908 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:24,908 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 07:20:24,933 WARN L854 $PredicateComparison]: unable to prove that (exists ((dll_create_~head~0.base (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| dll_create_~head~0.base (_ bv1 1))) (= (_ bv0 1) (select |c_old(#valid)| dll_create_~head~0.base)))) is different from true [2018-11-10 07:20:25,028 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:25,029 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:25,030 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 29 [2018-11-10 07:20:25,034 INFO L477 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 0 case distinctions, treesize of input 25 treesize of output 20 [2018-11-10 07:20:25,035 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:25,041 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:25,049 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. [2018-11-10 07:20:25,049 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:27 [2018-11-10 07:20:25,095 INFO L477 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 [2018-11-10 07:20:25,098 INFO L477 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 [2018-11-10 07:20:25,098 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:25,100 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:25,110 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. [2018-11-10 07:20:25,111 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:42, output treesize:39 [2018-11-10 07:20:26,418 INFO L477 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 [2018-11-10 07:20:26,429 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:26,429 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:26,443 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:26,499 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. [2018-11-10 07:20:26,499 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:296, output treesize:292 [2018-11-10 07:20:27,849 WARN L179 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 119 DAG size of output: 54 [2018-11-10 07:20:27,868 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:27,890 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:27,898 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:27,914 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:27,915 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-10 07:20:27,915 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:28,054 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:28,183 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:28,187 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:28,187 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:20:28,188 INFO L303 Elim1Store]: Index analysis took 158 ms [2018-11-10 07:20:28,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 183 [2018-11-10 07:20:28,465 WARN L179 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2018-11-10 07:20:28,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 77 treesize of output 67 [2018-11-10 07:20:28,477 INFO L477 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 67 treesize of output 64 [2018-11-10 07:20:28,478 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:28,533 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:28,791 INFO L477 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 97 treesize of output 114 [2018-11-10 07:20:28,815 INFO L477 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 2 case distinctions, treesize of input 92 treesize of output 84 [2018-11-10 07:20:28,816 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-11-10 07:20:29,298 INFO L477 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 87 treesize of output 76 [2018-11-10 07:20:29,298 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:29,701 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 85 [2018-11-10 07:20:29,701 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:29,949 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:20:29,950 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 68 [2018-11-10 07:20:29,955 INFO L477 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 0 case distinctions, treesize of input 21 treesize of output 13 [2018-11-10 07:20:29,956 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:29,977 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:29,995 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:29,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 69 [2018-11-10 07:20:30,001 INFO L477 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 27 treesize of output 27 [2018-11-10 07:20:30,001 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:30,034 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:30,144 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:30,216 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 117 [2018-11-10 07:20:30,221 INFO L477 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 108 treesize of output 107 [2018-11-10 07:20:30,222 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:30,399 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:30,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 84 [2018-11-10 07:20:30,417 INFO L477 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 67 treesize of output 67 [2018-11-10 07:20:30,417 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:30,458 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:30,654 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:30,686 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 91 treesize of output 114 [2018-11-10 07:20:30,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 83 [2018-11-10 07:20:30,694 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:30,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 77 [2018-11-10 07:20:30,949 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-10 07:20:31,199 INFO L267 ElimStorePlain]: Start of recursive call 18: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-11-10 07:20:31,547 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 5 xjuncts. [2018-11-10 07:20:32,083 INFO L477 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 73 treesize of output 71 [2018-11-10 07:20:32,088 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2018-11-10 07:20:32,089 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:32,125 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:32,136 INFO L477 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 88 treesize of output 86 [2018-11-10 07:20:32,142 INFO L477 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 [2018-11-10 07:20:32,142 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:32,178 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:32,188 INFO L477 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 89 treesize of output 85 [2018-11-10 07:20:32,195 INFO L477 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 27 treesize of output 21 [2018-11-10 07:20:32,195 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:32,232 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:32,240 INFO L477 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 0 case distinctions, treesize of input 86 treesize of output 78 [2018-11-10 07:20:32,244 INFO L477 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 55 treesize of output 45 [2018-11-10 07:20:32,245 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:32,272 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:32,280 INFO L477 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 86 treesize of output 84 [2018-11-10 07:20:32,284 INFO L477 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 [2018-11-10 07:20:32,285 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:32,310 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:32,320 INFO L477 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 128 treesize of output 114 [2018-11-10 07:20:32,324 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 82 [2018-11-10 07:20:32,325 INFO L267 ElimStorePlain]: Start of recursive call 32: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:32,358 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:33,194 INFO L477 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 0 case distinctions, treesize of input 73 treesize of output 65 [2018-11-10 07:20:33,199 INFO L477 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 9 [2018-11-10 07:20:33,199 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:33,240 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:33,241 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:20:33,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 28 treesize of output 30 [2018-11-10 07:20:33,242 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,263 INFO L267 ElimStorePlain]: Start of recursive call 33: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,272 INFO L477 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 0 case distinctions, treesize of input 66 treesize of output 58 [2018-11-10 07:20:33,276 INFO L477 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 9 [2018-11-10 07:20:33,276 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:33,310 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:33,310 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:20:33,311 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 28 treesize of output 30 [2018-11-10 07:20:33,312 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,333 INFO L267 ElimStorePlain]: Start of recursive call 36: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,344 INFO L477 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 65 treesize of output 57 [2018-11-10 07:20:33,349 INFO L477 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 9 [2018-11-10 07:20:33,350 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:33,408 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:33,408 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:20:33,409 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2018-11-10 07:20:33,410 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,431 INFO L267 ElimStorePlain]: Start of recursive call 39: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,439 INFO L477 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 0 case distinctions, treesize of input 71 treesize of output 63 [2018-11-10 07:20:33,443 INFO L477 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 9 [2018-11-10 07:20:33,443 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:33,475 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:33,476 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:20:33,477 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 28 treesize of output 30 [2018-11-10 07:20:33,477 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,500 INFO L267 ElimStorePlain]: Start of recursive call 42: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,507 INFO L477 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 96 treesize of output 88 [2018-11-10 07:20:33,514 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:33,514 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:20:33,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 38 treesize of output 44 [2018-11-10 07:20:33,515 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,555 INFO L477 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 8 [2018-11-10 07:20:33,556 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,584 INFO L267 ElimStorePlain]: Start of recursive call 45: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 69 [2018-11-10 07:20:33,601 INFO L477 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 9 [2018-11-10 07:20:33,601 INFO L267 ElimStorePlain]: Start of recursive call 49: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:33,655 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:33,655 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:20:33,656 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 28 treesize of output 30 [2018-11-10 07:20:33,656 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:33,687 INFO L267 ElimStorePlain]: Start of recursive call 48: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:34,000 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 3 dim-0 vars, and 6 xjuncts. [2018-11-10 07:20:34,109 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:34,110 INFO L202 ElimStorePlain]: Needed 50 recursive calls to eliminate 5 variables, input treesize:330, output treesize:79 [2018-11-10 07:20:34,247 INFO L477 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 [2018-11-10 07:20:34,249 INFO L477 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 [2018-11-10 07:20:34,249 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:34,253 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:34,271 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. [2018-11-10 07:20:34,271 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:90, output treesize:79 [2018-11-10 07:20:34,501 INFO L477 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 1 case distinctions, treesize of input 80 treesize of output 53 [2018-11-10 07:20:34,505 INFO L477 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 44 treesize of output 35 [2018-11-10 07:20:34,505 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:34,554 INFO L477 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 21 [2018-11-10 07:20:34,554 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:34,597 INFO L477 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2018-11-10 07:20:34,598 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:34,617 INFO L477 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 21 treesize of output 17 [2018-11-10 07:20:34,618 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:34,630 INFO L477 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 17 treesize of output 4 [2018-11-10 07:20:34,631 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:34,634 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:34,636 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:34,636 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:80, output treesize:4 [2018-11-10 07:20:34,905 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2018-11-10 07:20:34,905 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:20:35,903 WARN L179 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-11-10 07:20:36,068 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-11-10 07:20:36,278 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2018-11-10 07:20:36,564 WARN L179 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-11-10 07:20:39,213 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:20:39,214 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:39,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:20:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:39,262 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:39,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:39,264 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:39,265 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:39,265 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-10 07:20:39,343 WARN L854 $PredicateComparison]: unable to prove that (exists ((|dll_create_#t~malloc3.base| (_ BitVec 32))) (and (= |c_#valid| (store |c_old(#valid)| |dll_create_#t~malloc3.base| (_ bv1 1))) (= (select |c_old(#valid)| |dll_create_#t~malloc3.base|) (_ bv0 1)))) is different from true [2018-11-10 07:20:39,855 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:39,856 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:39,857 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:39,858 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 42 [2018-11-10 07:20:39,861 INFO L477 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 30 treesize of output 36 [2018-11-10 07:20:39,861 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:39,869 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:39,880 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. [2018-11-10 07:20:39,880 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:33 [2018-11-10 07:20:40,022 INFO L477 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 11 treesize of output 8 [2018-11-10 07:20:40,024 INFO L477 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 [2018-11-10 07:20:40,024 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:40,026 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:40,041 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. [2018-11-10 07:20:40,041 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:46, output treesize:51 [2018-11-10 07:20:40,330 INFO L477 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 [2018-11-10 07:20:40,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:40,339 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:40,354 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:40,416 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. [2018-11-10 07:20:40,416 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:296, output treesize:292 [2018-11-10 07:20:41,569 WARN L179 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 123 DAG size of output: 58 [2018-11-10 07:20:41,585 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:41,592 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:41,597 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:41,597 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:20:41,598 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37 [2018-11-10 07:20:41,598 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:41,751 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:41,759 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:41,952 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:41,958 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:41,959 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:20:41,959 INFO L303 Elim1Store]: Index analysis took 222 ms [2018-11-10 07:20:41,960 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 162 [2018-11-10 07:20:42,114 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2018-11-10 07:20:42,121 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 64 treesize of output 57 [2018-11-10 07:20:42,140 INFO L477 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 54 treesize of output 55 [2018-11-10 07:20:42,140 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:42,163 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:42,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 66 [2018-11-10 07:20:42,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 63 [2018-11-10 07:20:42,263 INFO L477 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 [2018-11-10 07:20:42,263 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:42,281 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:42,300 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:42,342 INFO L477 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 51 treesize of output 47 [2018-11-10 07:20:42,345 INFO L477 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 31 treesize of output 25 [2018-11-10 07:20:42,346 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:42,361 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:42,406 INFO L477 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 81 treesize of output 71 [2018-11-10 07:20:42,411 INFO L477 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 49 treesize of output 37 [2018-11-10 07:20:42,412 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:42,448 INFO L477 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 0 case distinctions, treesize of input 25 treesize of output 19 [2018-11-10 07:20:42,448 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:42,474 INFO L477 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 10 treesize of output 9 [2018-11-10 07:20:42,474 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:42,495 INFO L267 ElimStorePlain]: Start of recursive call 11: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:42,522 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:42,556 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:20:42,556 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 5 variables, input treesize:342, output treesize:88 [2018-11-10 07:20:42,764 INFO L477 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 [2018-11-10 07:20:42,768 INFO L477 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 [2018-11-10 07:20:42,768 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:42,772 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:42,795 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. [2018-11-10 07:20:42,795 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:102, output treesize:91 [2018-11-10 07:20:43,160 INFO L477 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 92 treesize of output 51 [2018-11-10 07:20:43,164 INFO L477 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 31 treesize of output 15 [2018-11-10 07:20:43,164 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:43,180 INFO L477 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 [2018-11-10 07:20:43,180 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:43,188 INFO L477 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 [2018-11-10 07:20:43,189 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:43,192 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:43,195 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:43,195 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:92, output treesize:4 [2018-11-10 07:20:43,211 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 12 not checked. [2018-11-10 07:20:43,211 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:20:43,967 WARN L179 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-11-10 07:20:44,181 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-11-10 07:20:44,489 WARN L179 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2018-11-10 07:20:44,752 WARN L179 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-11-10 07:20:47,726 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:20:47,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 31] total 44 [2018-11-10 07:20:47,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2018-11-10 07:20:47,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2018-11-10 07:20:47,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1878, Unknown=83, NotChecked=178, Total=2256 [2018-11-10 07:20:47,727 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 44 states. [2018-11-10 07:20:56,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:56,311 INFO L93 Difference]: Finished difference Result 126 states and 132 transitions. [2018-11-10 07:20:56,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-10 07:20:56,311 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 74 [2018-11-10 07:20:56,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:56,313 INFO L225 Difference]: With dead ends: 126 [2018-11-10 07:20:56,313 INFO L226 Difference]: Without dead ends: 123 [2018-11-10 07:20:56,314 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=276, Invalid=3791, Unknown=101, NotChecked=254, Total=4422 [2018-11-10 07:20:56,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-11-10 07:20:56,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 107. [2018-11-10 07:20:56,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-11-10 07:20:56,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 112 transitions. [2018-11-10 07:20:56,323 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 112 transitions. Word has length 74 [2018-11-10 07:20:56,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:56,324 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 112 transitions. [2018-11-10 07:20:56,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2018-11-10 07:20:56,324 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 112 transitions. [2018-11-10 07:20:56,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-10 07:20:56,326 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:56,326 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-10 07:20:56,326 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:56,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:56,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1677518018, now seen corresponding path program 2 times [2018-11-10 07:20:56,328 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:20:56,328 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:56,349 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-10 07:20:56,464 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 07:20:56,464 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:20:56,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:56,522 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 07:20:56,522 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:20:56,671 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 07:20:56,674 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 07:20:56,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2018-11-10 07:20:56,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 07:20:56,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 07:20:56,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-11-10 07:20:56,675 INFO L87 Difference]: Start difference. First operand 107 states and 112 transitions. Second operand 11 states. [2018-11-10 07:20:56,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:20:56,839 INFO L93 Difference]: Finished difference Result 149 states and 154 transitions. [2018-11-10 07:20:56,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 07:20:56,840 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 85 [2018-11-10 07:20:56,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:20:56,840 INFO L225 Difference]: With dead ends: 149 [2018-11-10 07:20:56,840 INFO L226 Difference]: Without dead ends: 82 [2018-11-10 07:20:56,841 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-11-10 07:20:56,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-11-10 07:20:56,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-11-10 07:20:56,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-10 07:20:56,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 84 transitions. [2018-11-10 07:20:56,845 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 84 transitions. Word has length 85 [2018-11-10 07:20:56,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:20:56,846 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 84 transitions. [2018-11-10 07:20:56,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 07:20:56,846 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2018-11-10 07:20:56,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-11-10 07:20:56,847 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:20:56,847 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:20:56,847 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:20:56,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:56,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1486387562, now seen corresponding path program 1 times [2018-11-10 07:20:56,848 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:20:56,848 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:20:56,861 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 07:20:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:57,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:20:57,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:57,044 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:57,048 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:57,049 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:14 [2018-11-10 07:20:57,154 INFO L477 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 [2018-11-10 07:20:57,155 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:57,155 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:57,157 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:57,165 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. [2018-11-10 07:20:57,165 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-11-10 07:20:57,265 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:57,266 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:20:57,266 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 29 [2018-11-10 07:20:57,272 INFO L477 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 25 treesize of output 20 [2018-11-10 07:20:57,272 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:57,280 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:57,292 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. [2018-11-10 07:20:57,292 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:40, output treesize:38 [2018-11-10 07:20:57,354 INFO L477 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 [2018-11-10 07:20:57,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:57,356 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:57,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:57,379 INFO L477 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 [2018-11-10 07:20:57,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:20:57,381 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:20:57,383 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:20:57,399 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. [2018-11-10 07:20:57,399 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:59, output treesize:52 [2018-11-10 07:20:59,725 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2018-11-10 07:21:01,068 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-11-10 07:21:02,365 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2018-11-10 07:21:03,804 WARN L179 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2018-11-10 07:21:03,877 WARN L854 $PredicateComparison]: unable to prove that (exists ((|dll_prepend_#t~mem9.offset| (_ BitVec 32)) (node_create_~data (_ BitVec 32)) (dll_prepend_~new_head~1.base (_ BitVec 32))) (let ((.cse1 (store |c_old(#memory_$Pointer$.base)| dll_prepend_~new_head~1.base (let ((.cse7 (store (store (select |c_old(#memory_$Pointer$.base)| dll_prepend_~new_head~1.base) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (store .cse7 (_ bv4 32) (select (select (store |c_old(#memory_$Pointer$.base)| dll_prepend_~new_head~1.base .cse7) |c_dll_prepend_#in~head.base|) |c_dll_prepend_#in~head.offset|)))))) (let ((.cse2 (select (select .cse1 |c_dll_prepend_#in~head.base|) |c_dll_prepend_#in~head.offset|)) (.cse3 (bvadd |dll_prepend_#t~mem9.offset| (_ bv8 32)))) (and (= (_ bv0 1) (select |c_old(#valid)| dll_prepend_~new_head~1.base)) (= |c_#memory_$Pointer$.base| (let ((.cse0 (store .cse1 .cse2 (store (select .cse1 .cse2) .cse3 dll_prepend_~new_head~1.base)))) (store .cse0 |c_dll_prepend_#in~head.base| (store (select .cse0 |c_dll_prepend_#in~head.base|) |c_dll_prepend_#in~head.offset| dll_prepend_~new_head~1.base)))) (= |c_#memory_int| (store |c_old(#memory_int)| dll_prepend_~new_head~1.base (store (select |c_old(#memory_int)| dll_prepend_~new_head~1.base) (_ bv0 32) node_create_~data))) (= (let ((.cse4 (let ((.cse5 (store |c_old(#memory_$Pointer$.offset)| dll_prepend_~new_head~1.base (let ((.cse6 (store (store (select |c_old(#memory_$Pointer$.offset)| dll_prepend_~new_head~1.base) (_ bv4 32) (_ bv0 32)) (_ bv8 32) (_ bv0 32)))) (store .cse6 (_ bv4 32) (select (select (store |c_old(#memory_$Pointer$.offset)| dll_prepend_~new_head~1.base .cse6) |c_dll_prepend_#in~head.base|) |c_dll_prepend_#in~head.offset|)))))) (store .cse5 .cse2 (store (select .cse5 .cse2) .cse3 (_ bv0 32)))))) (store .cse4 |c_dll_prepend_#in~head.base| (store (select .cse4 |c_dll_prepend_#in~head.base|) |c_dll_prepend_#in~head.offset| (_ bv0 32)))) |c_#memory_$Pointer$.offset|))))) is different from true [2018-11-10 07:21:25,312 WARN L179 SmtUtils]: Spent 21.43 s on a formula simplification. DAG size of input: 209 DAG size of output: 80 [2018-11-10 07:21:25,740 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:25,782 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:25,827 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:25,876 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:25,877 INFO L303 Elim1Store]: Index analysis took 564 ms [2018-11-10 07:21:25,877 INFO L477 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-11-10 07:21:25,877 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:26,834 INFO L303 Elim1Store]: Index analysis took 292 ms [2018-11-10 07:21:26,835 INFO L477 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 23 treesize of output 28 [2018-11-10 07:21:26,856 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:21:26,857 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:27,038 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:27,639 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:27,980 INFO L303 Elim1Store]: Index analysis took 422 ms [2018-11-10 07:21:27,983 INFO L477 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 1 case distinctions, treesize of input 149 treesize of output 172 [2018-11-10 07:21:28,136 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-11-10 07:21:28,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 18 treesize of output 21 [2018-11-10 07:21:28,208 INFO L477 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 21 treesize of output 23 [2018-11-10 07:21:28,225 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 23 treesize of output 26 [2018-11-10 07:21:28,226 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:28,419 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:28,643 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:29,350 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:29,362 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:29,362 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:29,542 INFO L303 Elim1Store]: Index analysis took 227 ms [2018-11-10 07:21:29,542 INFO L477 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 92 treesize of output 214 [2018-11-10 07:21:29,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 42 [2018-11-10 07:21:29,564 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:29,823 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:29,959 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:29,960 INFO L303 Elim1Store]: Index analysis took 173 ms [2018-11-10 07:21:29,961 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 150 [2018-11-10 07:21:29,968 INFO L477 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 23 treesize of output 19 [2018-11-10 07:21:29,969 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:30,037 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:30,129 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:30,146 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:30,147 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:30,231 INFO L303 Elim1Store]: Index analysis took 101 ms [2018-11-10 07:21:30,232 INFO L477 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 129 treesize of output 207 [2018-11-10 07:21:30,253 INFO L477 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 72 treesize of output 138 [2018-11-10 07:21:30,253 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:30,483 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:30,483 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:30,496 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:30,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 150 [2018-11-10 07:21:30,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 101 [2018-11-10 07:21:30,528 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:30,567 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:30,630 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:30,782 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:21:30,978 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:31,110 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:31,121 INFO L303 Elim1Store]: Index analysis took 163 ms [2018-11-10 07:21:31,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 228 treesize of output 192 [2018-11-10 07:21:31,325 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-11-10 07:21:31,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 77 treesize of output 67 [2018-11-10 07:21:31,339 INFO L477 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 67 treesize of output 64 [2018-11-10 07:21:31,340 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:31,390 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:31,671 INFO L477 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 100 treesize of output 113 [2018-11-10 07:21:31,678 INFO L477 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 104 treesize of output 91 [2018-11-10 07:21:31,678 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:32,164 INFO L477 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 2 case distinctions, treesize of input 77 treesize of output 75 [2018-11-10 07:21:32,164 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2018-11-10 07:21:32,718 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:32,755 INFO L477 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 3 case distinctions, treesize of input 106 treesize of output 120 [2018-11-10 07:21:32,801 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:32,802 INFO L477 Elim1Store]: Elim1 applied some 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 0 case distinctions, treesize of input 97 treesize of output 100 [2018-11-10 07:21:32,809 INFO L477 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 67 treesize of output 61 [2018-11-10 07:21:32,809 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:32,845 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:32,988 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:21:33,412 INFO L477 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 62 treesize of output 61 [2018-11-10 07:21:33,420 INFO L477 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 16 treesize of output 17 [2018-11-10 07:21:33,420 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:33,458 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:33,732 INFO L477 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 3 case distinctions, treesize of input 71 treesize of output 97 [2018-11-10 07:21:33,738 INFO L477 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 74 treesize of output 69 [2018-11-10 07:21:33,746 INFO L477 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 16 treesize of output 17 [2018-11-10 07:21:33,747 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:33,787 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:33,859 INFO L267 ElimStorePlain]: Start of recursive call 28: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:33,927 INFO L267 ElimStorePlain]: Start of recursive call 20: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:34,004 INFO L477 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 120 [2018-11-10 07:21:34,010 INFO L477 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 111 treesize of output 110 [2018-11-10 07:21:34,011 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:34,200 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:34,215 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:34,234 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 103 [2018-11-10 07:21:34,241 INFO L477 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 70 treesize of output 70 [2018-11-10 07:21:34,241 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:34,281 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:34,418 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:34,493 INFO L477 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 4 case distinctions, treesize of input 94 treesize of output 117 [2018-11-10 07:21:34,501 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 86 [2018-11-10 07:21:34,502 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:34,789 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 80 [2018-11-10 07:21:34,791 INFO L267 ElimStorePlain]: Start of recursive call 38: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:34,906 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-10 07:21:35,241 INFO L267 ElimStorePlain]: Start of recursive call 35: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 4 xjuncts. [2018-11-10 07:21:35,756 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 5 xjuncts. [2018-11-10 07:21:36,400 INFO L477 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 98 treesize of output 86 [2018-11-10 07:21:36,404 INFO L477 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 22 treesize of output 18 [2018-11-10 07:21:36,405 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:36,478 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:36,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 36 treesize of output 32 [2018-11-10 07:21:36,479 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:36,525 INFO L267 ElimStorePlain]: Start of recursive call 39: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:36,533 INFO L477 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 95 treesize of output 83 [2018-11-10 07:21:36,538 INFO L477 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 22 treesize of output 18 [2018-11-10 07:21:36,538 INFO L267 ElimStorePlain]: Start of recursive call 43: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:36,617 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:36,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 36 treesize of output 32 [2018-11-10 07:21:36,618 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:36,650 INFO L267 ElimStorePlain]: Start of recursive call 42: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:36,662 INFO L477 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 0 case distinctions, treesize of input 82 treesize of output 70 [2018-11-10 07:21:36,668 INFO L477 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 22 treesize of output 18 [2018-11-10 07:21:36,668 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:36,730 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:36,731 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 36 treesize of output 32 [2018-11-10 07:21:36,731 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:36,756 INFO L267 ElimStorePlain]: Start of recursive call 45: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:36,767 INFO L477 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 0 case distinctions, treesize of input 95 treesize of output 83 [2018-11-10 07:21:36,773 INFO L477 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 26 treesize of output 22 [2018-11-10 07:21:36,773 INFO L267 ElimStorePlain]: Start of recursive call 49: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:36,833 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:36,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 44 treesize of output 40 [2018-11-10 07:21:36,834 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:36,867 INFO L267 ElimStorePlain]: Start of recursive call 48: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:36,880 INFO L477 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 137 treesize of output 125 [2018-11-10 07:21:36,886 INFO L477 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 30 treesize of output 26 [2018-11-10 07:21:36,887 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:37,001 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:37,002 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 52 treesize of output 48 [2018-11-10 07:21:37,002 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:37,055 INFO L267 ElimStorePlain]: Start of recursive call 51: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:37,069 INFO L477 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 113 treesize of output 101 [2018-11-10 07:21:37,075 INFO L477 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 26 treesize of output 22 [2018-11-10 07:21:37,075 INFO L267 ElimStorePlain]: Start of recursive call 55: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:37,148 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:37,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 44 treesize of output 40 [2018-11-10 07:21:37,149 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:37,187 INFO L267 ElimStorePlain]: Start of recursive call 54: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:37,496 INFO L477 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 82 treesize of output 74 [2018-11-10 07:21:37,500 INFO L477 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 23 treesize of output 14 [2018-11-10 07:21:37,500 INFO L267 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:37,521 INFO L267 ElimStorePlain]: Start of recursive call 57: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:37,528 INFO L477 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 0 case distinctions, treesize of input 78 treesize of output 70 [2018-11-10 07:21:37,534 INFO L477 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 47 treesize of output 46 [2018-11-10 07:21:37,534 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:37,557 INFO L267 ElimStorePlain]: Start of recursive call 59: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:37,563 INFO L477 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 0 case distinctions, treesize of input 69 treesize of output 63 [2018-11-10 07:21:37,568 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 29 [2018-11-10 07:21:37,568 INFO L267 ElimStorePlain]: Start of recursive call 62: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:37,593 INFO L267 ElimStorePlain]: Start of recursive call 61: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:37,608 INFO L477 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 96 treesize of output 90 [2018-11-10 07:21:37,621 INFO L477 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 23 treesize of output 14 [2018-11-10 07:21:37,621 INFO L267 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:37,650 INFO L267 ElimStorePlain]: Start of recursive call 63: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:37,657 INFO L477 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 116 treesize of output 100 [2018-11-10 07:21:37,662 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 70 [2018-11-10 07:21:37,663 INFO L267 ElimStorePlain]: Start of recursive call 66: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:37,696 INFO L267 ElimStorePlain]: Start of recursive call 65: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:37,704 INFO L477 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 85 treesize of output 77 [2018-11-10 07:21:37,708 INFO L477 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 30 [2018-11-10 07:21:37,708 INFO L267 ElimStorePlain]: Start of recursive call 68: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:37,740 INFO L267 ElimStorePlain]: Start of recursive call 67: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:38,068 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 4 dim-0 vars, and 6 xjuncts. [2018-11-10 07:21:38,491 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 3 dim-2 vars, End of recursive call: 11 dim-0 vars, and 6 xjuncts. [2018-11-10 07:21:38,492 INFO L202 ElimStorePlain]: Needed 68 recursive calls to eliminate 8 variables, input treesize:626, output treesize:738 [2018-11-10 07:21:39,435 WARN L179 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 87 [2018-11-10 07:21:40,357 INFO L477 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 5 new quantified variables, introduced 1 case distinctions, treesize of input 146 treesize of output 116 [2018-11-10 07:21:40,362 INFO L477 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 104 treesize of output 97 [2018-11-10 07:21:40,363 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:40,439 INFO L477 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 91 treesize of output 79 [2018-11-10 07:21:40,440 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:40,512 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:40,515 INFO L477 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 0 case distinctions, treesize of input 79 treesize of output 68 [2018-11-10 07:21:40,515 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:40,578 INFO L477 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 97 treesize of output 85 [2018-11-10 07:21:40,579 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:40,644 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:40,647 INFO L477 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 85 treesize of output 72 [2018-11-10 07:21:40,647 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:40,696 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-11-10 07:21:41,068 INFO L477 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 63 treesize of output 51 [2018-11-10 07:21:41,072 INFO L477 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 17 treesize of output 15 [2018-11-10 07:21:41,072 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:41,093 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:41,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2018-11-10 07:21:41,094 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:41,108 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:41,112 INFO L477 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 57 treesize of output 47 [2018-11-10 07:21:41,120 INFO L477 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 5 [2018-11-10 07:21:41,121 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:41,140 INFO L477 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 16 treesize of output 3 [2018-11-10 07:21:41,140 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:41,151 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:41,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 172 treesize of output 146 [2018-11-10 07:21:41,426 INFO L477 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 126 treesize of output 125 [2018-11-10 07:21:41,426 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:41,743 INFO L477 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 125 treesize of output 130 [2018-11-10 07:21:41,744 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:42,072 INFO L477 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 130 treesize of output 102 [2018-11-10 07:21:42,073 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:42,405 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:42,409 INFO L477 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 102 treesize of output 99 [2018-11-10 07:21:42,409 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:42,711 INFO L477 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 99 [2018-11-10 07:21:42,712 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:42,997 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:43,001 INFO L477 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 0 case distinctions, treesize of input 96 treesize of output 95 [2018-11-10 07:21:43,001 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:43,267 INFO L477 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 105 [2018-11-10 07:21:43,267 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:43,537 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:43,540 INFO L477 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 102 treesize of output 89 [2018-11-10 07:21:43,541 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:43,783 INFO L477 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 122 treesize of output 108 [2018-11-10 07:21:43,784 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:21:44,017 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:44,020 INFO L477 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 108 treesize of output 93 [2018-11-10 07:21:44,021 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,226 INFO L267 ElimStorePlain]: Start of recursive call 14: 10 dim-1 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-11-10 07:21:44,657 INFO L477 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 0 case distinctions, treesize of input 76 treesize of output 62 [2018-11-10 07:21:44,661 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:44,661 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-11-10 07:21:44,662 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,689 INFO L477 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 [2018-11-10 07:21:44,689 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,715 INFO L477 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 [2018-11-10 07:21:44,715 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,727 INFO L267 ElimStorePlain]: Start of recursive call 25: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,748 INFO L477 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 80 treesize of output 66 [2018-11-10 07:21:44,756 INFO L477 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 [2018-11-10 07:21:44,756 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,785 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:44,786 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-11-10 07:21:44,786 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,806 INFO L477 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 [2018-11-10 07:21:44,806 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,820 INFO L267 ElimStorePlain]: Start of recursive call 29: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,829 INFO L477 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 80 treesize of output 66 [2018-11-10 07:21:44,833 INFO L477 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 [2018-11-10 07:21:44,833 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,859 INFO L477 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 17 treesize of output 15 [2018-11-10 07:21:44,859 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,883 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:44,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2018-11-10 07:21:44,883 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,899 INFO L267 ElimStorePlain]: Start of recursive call 33: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,909 INFO L477 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 82 treesize of output 70 [2018-11-10 07:21:44,913 INFO L477 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 [2018-11-10 07:21:44,913 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,947 INFO L477 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 5 [2018-11-10 07:21:44,947 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,973 INFO L477 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 16 treesize of output 3 [2018-11-10 07:21:44,973 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:44,991 INFO L267 ElimStorePlain]: Start of recursive call 37: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:45,251 INFO L477 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 139 [2018-11-10 07:21:45,261 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:21:45,262 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-11-10 07:21:45,262 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:45,315 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:45,316 INFO L477 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 30 treesize of output 18 [2018-11-10 07:21:45,316 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:45,360 INFO L267 ElimStorePlain]: Start of recursive call 41: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:45,610 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:45,611 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:45,619 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:21:45,620 INFO L477 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 90 [2018-11-10 07:21:45,625 INFO L477 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 18 treesize of output 5 [2018-11-10 07:21:45,626 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:45,655 INFO L477 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 47 treesize of output 29 [2018-11-10 07:21:45,655 INFO L267 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:45,675 INFO L477 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 [2018-11-10 07:21:45,675 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:45,686 INFO L267 ElimStorePlain]: Start of recursive call 44: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:45,831 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 6 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:21:45,831 INFO L202 ElimStorePlain]: Needed 47 recursive calls to eliminate 13 variables, input treesize:496, output treesize:35 [2018-11-10 07:21:46,366 INFO L477 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 [2018-11-10 07:21:46,367 INFO L477 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 [2018-11-10 07:21:46,367 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:21:46,368 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:46,371 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:21:46,371 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:20, output treesize:9 [2018-11-10 07:21:46,575 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:21:46,576 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:21:48,352 WARN L179 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-11-10 07:21:48,670 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-11-10 07:21:48,828 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-11-10 07:21:52,697 WARN L179 SmtUtils]: Spent 3.87 s on a formula simplification that was a NOOP. DAG size: 109 [2018-11-10 07:21:54,165 WARN L179 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 64 [2018-11-10 07:21:57,033 WARN L179 SmtUtils]: Spent 2.87 s on a formula simplification that was a NOOP. DAG size: 84 [2018-11-10 07:21:59,023 WARN L179 SmtUtils]: Spent 1.99 s on a formula simplification that was a NOOP. DAG size: 76 [2018-11-10 07:22:09,376 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:22:09,376 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e58b46cf-20dc-495d-a5e0-e070f0d11e46/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 [2018-11-10 07:22:09,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:22:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:22:09,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:22:10,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:22:10,044 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:22:10,048 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:22:10,048 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-11-10 07:22:10,460 INFO L477 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 [2018-11-10 07:22:10,462 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:22:10,462 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:22:10,464 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:22:10,468 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:22:10,468 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-10 07:22:11,369 INFO L477 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 [2018-11-10 07:22:11,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:22:11,372 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:22:11,374 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:22:11,390 INFO L477 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 [2018-11-10 07:22:11,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:22:11,392 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-10 07:22:11,394 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:22:11,406 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:22:11,406 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:40, output treesize:30 [2018-11-10 07:22:31,147 WARN L179 SmtUtils]: Spent 17.49 s on a formula simplification. DAG size of input: 197 DAG size of output: 68 [2018-11-10 07:22:31,274 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:22:31,351 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:22:31,351 INFO L303 Elim1Store]: Index analysis took 203 ms [2018-11-10 07:22:31,352 INFO L477 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 17 treesize of output 8 [2018-11-10 07:22:31,352 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:22:32,225 INFO L303 Elim1Store]: Index analysis took 183 ms [2018-11-10 07:22:32,225 INFO L477 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 [2018-11-10 07:22:32,251 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2018-11-10 07:22:32,251 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 07:22:32,369 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:22:32,850 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:22:33,567 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:22:33,655 INFO L303 Elim1Store]: Index analysis took 948 ms [2018-11-10 07:22:34,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 306 treesize of output 256 [2018-11-10 07:24:56,080 WARN L179 SmtUtils]: Spent 2.37 m on a formula simplification. DAG size of input: 173 DAG size of output: 159 [2018-11-10 07:24:56,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 209 treesize of output 205 [2018-11-10 07:24:56,119 INFO L477 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 44 treesize of output 43 [2018-11-10 07:24:56,119 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-11-10 07:24:56,584 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:24:56,594 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 217 treesize of output 213 [2018-11-10 07:24:56,603 INFO L477 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 44 treesize of output 43 [2018-11-10 07:24:56,603 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 07:24:56,793 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:26:17,189 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:26:17,224 INFO L477 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 174 treesize of output 174 [2018-11-10 07:26:17,257 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:26:17,326 INFO L477 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 167 treesize of output 186 [2018-11-10 07:26:17,326 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-11-10 07:26:17,736 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:28:01,253 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:28:01,280 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:28:01,414 INFO L303 Elim1Store]: Index analysis took 210 ms [2018-11-10 07:28:01,415 INFO L477 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 0 case distinctions, treesize of input 204 treesize of output 202 [2018-11-10 07:28:01,458 INFO L477 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 26 [2018-11-10 07:28:01,680 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:28:01,680 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_42 term size 12 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) 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.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) 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:234) 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:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-10 07:28:01,683 INFO L168 Benchmark]: Toolchain (without parser) took 463313.53 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 288.9 MB). Free memory was 943.3 MB in the beginning and 1.2 GB in the end (delta: -272.7 MB). Peak memory consumption was 463.5 MB. Max. memory is 11.5 GB. [2018-11-10 07:28:01,684 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:28:01,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.08 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 916.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:28:01,684 INFO L168 Benchmark]: Boogie Preprocessor took 83.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:28:01,684 INFO L168 Benchmark]: RCFGBuilder took 430.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:28:01,684 INFO L168 Benchmark]: TraceAbstraction took 462491.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -163.8 MB). Peak memory consumption was 448.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:28:01,685 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 305.08 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 916.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 916.5 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 430.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 462491.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 164.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -163.8 MB). Peak memory consumption was 448.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_42 term size 12 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_42 term size 12: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...