./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-queue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-queue-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39996758d4a4793ed5619e696b4574ccdffaa666 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-queue-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39996758d4a4793ed5619e696b4574ccdffaa666 .................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:57:39,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:57:39,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:57:39,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:57:39,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:57:39,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:57:39,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:57:39,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:57:39,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:57:39,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:57:39,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:57:39,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:57:39,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:57:39,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:57:39,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:57:39,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:57:39,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:57:39,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:57:39,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:57:39,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:57:39,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:57:39,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:57:39,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:57:39,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:57:39,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:57:39,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:57:39,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:57:39,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:57:39,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:57:39,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:57:39,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:57:39,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:57:39,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:57:39,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:57:39,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:57:39,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:57:39,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:57:39,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:57:39,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:57:39,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:57:39,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:57:39,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2019-11-15 20:57:39,369 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:57:39,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:57:39,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:57:39,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:57:39,371 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:57:39,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:57:39,371 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:57:39,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:57:39,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:57:39,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:57:39,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:57:39,372 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 20:57:39,372 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 20:57:39,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:57:39,373 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:57:39,373 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:57:39,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:57:39,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:57:39,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:57:39,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:57:39,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:57:39,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:57:39,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:57:39,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:57:39,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:57:39,375 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) 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 -> 39996758d4a4793ed5619e696b4574ccdffaa666 [2019-11-15 20:57:39,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:57:39,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:57:39,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:57:39,413 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:57:39,414 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:57:39,414 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-queue-2.i [2019-11-15 20:57:39,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/data/5d103f72c/b1bfca051fd54b7483a76a401411bcb4/FLAGac80c3b6b [2019-11-15 20:57:39,887 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:57:39,888 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/sv-benchmarks/c/forester-heap/dll-queue-2.i [2019-11-15 20:57:39,908 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/data/5d103f72c/b1bfca051fd54b7483a76a401411bcb4/FLAGac80c3b6b [2019-11-15 20:57:39,922 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/data/5d103f72c/b1bfca051fd54b7483a76a401411bcb4 [2019-11-15 20:57:39,924 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:57:39,925 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 20:57:39,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:57:39,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:57:39,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:57:39,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:57:39" (1/1) ... [2019-11-15 20:57:39,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd48f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:39, skipping insertion in model container [2019-11-15 20:57:39,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:57:39" (1/1) ... [2019-11-15 20:57:39,939 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:57:39,983 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:57:40,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:57:40,344 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:57:40,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:57:40,447 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:57:40,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:40 WrapperNode [2019-11-15 20:57:40,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:57:40,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:57:40,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:57:40,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:57:40,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:40" (1/1) ... [2019-11-15 20:57:40,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:40" (1/1) ... [2019-11-15 20:57:40,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:40" (1/1) ... [2019-11-15 20:57:40,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:40" (1/1) ... [2019-11-15 20:57:40,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:40" (1/1) ... [2019-11-15 20:57:40,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:40" (1/1) ... [2019-11-15 20:57:40,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:40" (1/1) ... [2019-11-15 20:57:40,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:57:40,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:57:40,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:57:40,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:57:40,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/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 [2019-11-15 20:57:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 20:57:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:57:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 20:57:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 20:57:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 20:57:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 20:57:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 20:57:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 20:57:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 20:57:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 20:57:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 20:57:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 20:57:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 20:57:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 20:57:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 20:57:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 20:57:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 20:57:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 20:57:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 20:57:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 20:57:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 20:57:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 20:57:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 20:57:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 20:57:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 20:57:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 20:57:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 20:57:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 20:57:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 20:57:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 20:57:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 20:57:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 20:57:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 20:57:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 20:57:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 20:57:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 20:57:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 20:57:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 20:57:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 20:57:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 20:57:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 20:57:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 20:57:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 20:57:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 20:57:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 20:57:40,586 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 20:57:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 20:57:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 20:57:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 20:57:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 20:57:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 20:57:40,587 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 20:57:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 20:57:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 20:57:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 20:57:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 20:57:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 20:57:40,588 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-15 20:57:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 20:57:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 20:57:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 20:57:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 20:57:40,589 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 20:57:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 20:57:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 20:57:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 20:57:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 20:57:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 20:57:40,590 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 20:57:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 20:57:40,591 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 20:57:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 20:57:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 20:57:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 20:57:40,592 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 20:57:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 20:57:40,593 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 20:57:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 20:57:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 20:57:40,594 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 20:57:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 20:57:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 20:57:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 20:57:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 20:57:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 20:57:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 20:57:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 20:57:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 20:57:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 20:57:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 20:57:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 20:57:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 20:57:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 20:57:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 20:57:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 20:57:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 20:57:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 20:57:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 20:57:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 20:57:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 20:57:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 20:57:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 20:57:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 20:57:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 20:57:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 20:57:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 20:57:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 20:57:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-15 20:57:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 20:57:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 20:57:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-15 20:57:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:57:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-15 20:57:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:57:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:57:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 20:57:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:57:41,404 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:57:41,404 INFO L284 CfgBuilder]: Removed 31 assume(true) statements. [2019-11-15 20:57:41,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:57:41 BoogieIcfgContainer [2019-11-15 20:57:41,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:57:41,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:57:41,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:57:41,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:57:41,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:57:39" (1/3) ... [2019-11-15 20:57:41,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767670ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:57:41, skipping insertion in model container [2019-11-15 20:57:41,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:40" (2/3) ... [2019-11-15 20:57:41,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767670ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:57:41, skipping insertion in model container [2019-11-15 20:57:41,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:57:41" (3/3) ... [2019-11-15 20:57:41,414 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-queue-2.i [2019-11-15 20:57:41,424 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:57:41,431 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 62 error locations. [2019-11-15 20:57:41,444 INFO L249 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2019-11-15 20:57:41,471 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:57:41,472 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 20:57:41,475 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:57:41,476 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:57:41,476 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:57:41,476 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:57:41,477 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:57:41,477 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:57:41,508 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2019-11-15 20:57:41,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 20:57:41,518 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:41,519 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:57:41,522 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:41,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:41,535 INFO L82 PathProgramCache]: Analyzing trace with hash 560663005, now seen corresponding path program 1 times [2019-11-15 20:57:41,544 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:41,545 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550767439] [2019-11-15 20:57:41,545 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:41,545 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:41,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:41,751 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550767439] [2019-11-15 20:57:41,752 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:41,752 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:57:41,753 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434677163] [2019-11-15 20:57:41,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:57:41,757 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:41,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:57:41,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:57:41,772 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 4 states. [2019-11-15 20:57:42,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:42,230 INFO L93 Difference]: Finished difference Result 153 states and 164 transitions. [2019-11-15 20:57:42,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:57:42,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 20:57:42,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:42,245 INFO L225 Difference]: With dead ends: 153 [2019-11-15 20:57:42,247 INFO L226 Difference]: Without dead ends: 149 [2019-11-15 20:57:42,253 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:57:42,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-11-15 20:57:42,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 145. [2019-11-15 20:57:42,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-15 20:57:42,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 157 transitions. [2019-11-15 20:57:42,325 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 157 transitions. Word has length 7 [2019-11-15 20:57:42,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:42,326 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 157 transitions. [2019-11-15 20:57:42,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:57:42,326 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 157 transitions. [2019-11-15 20:57:42,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 20:57:42,327 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:42,327 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:57:42,327 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:42,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:42,328 INFO L82 PathProgramCache]: Analyzing trace with hash 560663006, now seen corresponding path program 1 times [2019-11-15 20:57:42,328 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:42,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908984418] [2019-11-15 20:57:42,329 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:42,329 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:42,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:42,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:42,410 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908984418] [2019-11-15 20:57:42,410 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:42,410 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 20:57:42,410 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526468316] [2019-11-15 20:57:42,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:57:42,412 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:42,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:57:42,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:57:42,412 INFO L87 Difference]: Start difference. First operand 145 states and 157 transitions. Second operand 4 states. [2019-11-15 20:57:42,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:42,784 INFO L93 Difference]: Finished difference Result 138 states and 148 transitions. [2019-11-15 20:57:42,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 20:57:42,785 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 20:57:42,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:42,786 INFO L225 Difference]: With dead ends: 138 [2019-11-15 20:57:42,786 INFO L226 Difference]: Without dead ends: 138 [2019-11-15 20:57:42,787 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:57:42,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2019-11-15 20:57:42,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 134. [2019-11-15 20:57:42,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-15 20:57:42,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 145 transitions. [2019-11-15 20:57:42,796 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 145 transitions. Word has length 7 [2019-11-15 20:57:42,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:42,797 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 145 transitions. [2019-11-15 20:57:42,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:57:42,797 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 145 transitions. [2019-11-15 20:57:42,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 20:57:42,797 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:42,798 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:57:42,798 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:42,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:42,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1109601498, now seen corresponding path program 1 times [2019-11-15 20:57:42,798 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:42,798 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105510870] [2019-11-15 20:57:42,799 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:42,799 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:42,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:42,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:42,885 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105510870] [2019-11-15 20:57:42,885 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:42,885 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:57:42,885 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204427018] [2019-11-15 20:57:42,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:57:42,886 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:42,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:57:42,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:57:42,886 INFO L87 Difference]: Start difference. First operand 134 states and 145 transitions. Second operand 5 states. [2019-11-15 20:57:43,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:43,212 INFO L93 Difference]: Finished difference Result 141 states and 151 transitions. [2019-11-15 20:57:43,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:57:43,213 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-15 20:57:43,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:43,215 INFO L225 Difference]: With dead ends: 141 [2019-11-15 20:57:43,215 INFO L226 Difference]: Without dead ends: 141 [2019-11-15 20:57:43,215 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:57:43,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-11-15 20:57:43,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 135. [2019-11-15 20:57:43,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-11-15 20:57:43,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 149 transitions. [2019-11-15 20:57:43,233 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 149 transitions. Word has length 13 [2019-11-15 20:57:43,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:43,234 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 149 transitions. [2019-11-15 20:57:43,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:57:43,234 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 149 transitions. [2019-11-15 20:57:43,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-15 20:57:43,239 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:43,239 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:57:43,239 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:43,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:43,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1109601497, now seen corresponding path program 1 times [2019-11-15 20:57:43,240 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:43,240 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721955549] [2019-11-15 20:57:43,241 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:43,241 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:43,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:43,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:43,352 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721955549] [2019-11-15 20:57:43,352 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:43,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:57:43,353 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726490855] [2019-11-15 20:57:43,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:57:43,353 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:43,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:57:43,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:57:43,354 INFO L87 Difference]: Start difference. First operand 135 states and 149 transitions. Second operand 5 states. [2019-11-15 20:57:43,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:43,665 INFO L93 Difference]: Finished difference Result 208 states and 223 transitions. [2019-11-15 20:57:43,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:57:43,666 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-15 20:57:43,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:43,667 INFO L225 Difference]: With dead ends: 208 [2019-11-15 20:57:43,667 INFO L226 Difference]: Without dead ends: 208 [2019-11-15 20:57:43,668 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:57:43,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2019-11-15 20:57:43,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 142. [2019-11-15 20:57:43,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-11-15 20:57:43,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 158 transitions. [2019-11-15 20:57:43,677 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 158 transitions. Word has length 13 [2019-11-15 20:57:43,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:43,678 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 158 transitions. [2019-11-15 20:57:43,678 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:57:43,678 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 158 transitions. [2019-11-15 20:57:43,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 20:57:43,679 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:43,679 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:57:43,679 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:43,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:43,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1175150295, now seen corresponding path program 1 times [2019-11-15 20:57:43,680 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:43,680 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926783685] [2019-11-15 20:57:43,680 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:43,680 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:43,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:43,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:43,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926783685] [2019-11-15 20:57:43,738 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:43,738 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:57:43,738 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926976111] [2019-11-15 20:57:43,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 20:57:43,739 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:43,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:57:43,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:57:43,739 INFO L87 Difference]: Start difference. First operand 142 states and 158 transitions. Second operand 6 states. [2019-11-15 20:57:44,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:44,184 INFO L93 Difference]: Finished difference Result 224 states and 246 transitions. [2019-11-15 20:57:44,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:57:44,185 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-15 20:57:44,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:44,186 INFO L225 Difference]: With dead ends: 224 [2019-11-15 20:57:44,186 INFO L226 Difference]: Without dead ends: 224 [2019-11-15 20:57:44,186 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:57:44,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2019-11-15 20:57:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 141. [2019-11-15 20:57:44,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-11-15 20:57:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 156 transitions. [2019-11-15 20:57:44,194 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 156 transitions. Word has length 15 [2019-11-15 20:57:44,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:44,194 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 156 transitions. [2019-11-15 20:57:44,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 20:57:44,194 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 156 transitions. [2019-11-15 20:57:44,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 20:57:44,195 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:44,195 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:57:44,195 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:44,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:44,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1175150294, now seen corresponding path program 1 times [2019-11-15 20:57:44,196 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:44,196 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080119833] [2019-11-15 20:57:44,196 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:44,196 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:44,196 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:44,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:44,303 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080119833] [2019-11-15 20:57:44,304 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:44,304 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:57:44,304 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808810025] [2019-11-15 20:57:44,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 20:57:44,304 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:44,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 20:57:44,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:57:44,305 INFO L87 Difference]: Start difference. First operand 141 states and 156 transitions. Second operand 6 states. [2019-11-15 20:57:44,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:44,765 INFO L93 Difference]: Finished difference Result 233 states and 256 transitions. [2019-11-15 20:57:44,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:57:44,766 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-11-15 20:57:44,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:44,767 INFO L225 Difference]: With dead ends: 233 [2019-11-15 20:57:44,767 INFO L226 Difference]: Without dead ends: 233 [2019-11-15 20:57:44,767 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:57:44,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-11-15 20:57:44,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 140. [2019-11-15 20:57:44,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-15 20:57:44,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2019-11-15 20:57:44,774 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 15 [2019-11-15 20:57:44,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:44,774 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2019-11-15 20:57:44,775 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 20:57:44,775 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2019-11-15 20:57:44,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 20:57:44,776 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:44,776 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:57:44,776 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:44,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:44,777 INFO L82 PathProgramCache]: Analyzing trace with hash 2130631019, now seen corresponding path program 1 times [2019-11-15 20:57:44,777 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:44,777 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716413003] [2019-11-15 20:57:44,777 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:44,777 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:44,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:44,906 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716413003] [2019-11-15 20:57:44,907 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:44,907 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-15 20:57:44,907 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915113983] [2019-11-15 20:57:44,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 20:57:44,907 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:44,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 20:57:44,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-15 20:57:44,908 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 10 states. [2019-11-15 20:57:45,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:45,499 INFO L93 Difference]: Finished difference Result 144 states and 155 transitions. [2019-11-15 20:57:45,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 20:57:45,499 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2019-11-15 20:57:45,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:45,500 INFO L225 Difference]: With dead ends: 144 [2019-11-15 20:57:45,500 INFO L226 Difference]: Without dead ends: 144 [2019-11-15 20:57:45,501 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-11-15 20:57:45,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-11-15 20:57:45,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 139. [2019-11-15 20:57:45,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-11-15 20:57:45,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2019-11-15 20:57:45,506 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 19 [2019-11-15 20:57:45,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:45,506 INFO L462 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2019-11-15 20:57:45,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 20:57:45,506 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2019-11-15 20:57:45,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 20:57:45,507 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:45,507 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:57:45,507 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:45,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:45,507 INFO L82 PathProgramCache]: Analyzing trace with hash 2130631020, now seen corresponding path program 1 times [2019-11-15 20:57:45,508 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:45,508 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585715956] [2019-11-15 20:57:45,508 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:45,508 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:45,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:45,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:45,712 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585715956] [2019-11-15 20:57:45,712 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:45,712 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-15 20:57:45,712 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527042620] [2019-11-15 20:57:45,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-15 20:57:45,713 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:45,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-15 20:57:45,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-15 20:57:45,713 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand 11 states. [2019-11-15 20:57:46,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:46,773 INFO L93 Difference]: Finished difference Result 193 states and 207 transitions. [2019-11-15 20:57:46,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-15 20:57:46,773 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2019-11-15 20:57:46,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:46,775 INFO L225 Difference]: With dead ends: 193 [2019-11-15 20:57:46,775 INFO L226 Difference]: Without dead ends: 193 [2019-11-15 20:57:46,775 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2019-11-15 20:57:46,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-15 20:57:46,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 125. [2019-11-15 20:57:46,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-15 20:57:46,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 138 transitions. [2019-11-15 20:57:46,779 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 138 transitions. Word has length 19 [2019-11-15 20:57:46,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:46,779 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 138 transitions. [2019-11-15 20:57:46,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-15 20:57:46,780 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 138 transitions. [2019-11-15 20:57:46,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-15 20:57:46,780 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:46,780 INFO L380 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] [2019-11-15 20:57:46,781 INFO L410 AbstractCegarLoop]: === Iteration 9 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:46,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:46,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1638281603, now seen corresponding path program 1 times [2019-11-15 20:57:46,781 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:46,781 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389406512] [2019-11-15 20:57:46,781 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:46,781 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:46,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:46,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:46,817 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389406512] [2019-11-15 20:57:46,817 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:46,818 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:57:46,818 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144653406] [2019-11-15 20:57:46,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:57:46,818 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:46,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:57:46,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:57:46,819 INFO L87 Difference]: Start difference. First operand 125 states and 138 transitions. Second operand 4 states. [2019-11-15 20:57:46,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:46,973 INFO L93 Difference]: Finished difference Result 180 states and 200 transitions. [2019-11-15 20:57:46,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 20:57:46,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2019-11-15 20:57:46,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:46,974 INFO L225 Difference]: With dead ends: 180 [2019-11-15 20:57:46,974 INFO L226 Difference]: Without dead ends: 180 [2019-11-15 20:57:46,975 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:57:46,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-11-15 20:57:46,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 140. [2019-11-15 20:57:46,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-15 20:57:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 154 transitions. [2019-11-15 20:57:46,979 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 154 transitions. Word has length 23 [2019-11-15 20:57:46,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:46,979 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 154 transitions. [2019-11-15 20:57:46,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:57:46,979 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 154 transitions. [2019-11-15 20:57:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 20:57:46,980 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:46,980 INFO L380 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] [2019-11-15 20:57:46,982 INFO L410 AbstractCegarLoop]: === Iteration 10 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:46,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:46,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1400903352, now seen corresponding path program 1 times [2019-11-15 20:57:46,982 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:46,982 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697589677] [2019-11-15 20:57:46,983 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:46,983 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:46,983 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:47,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697589677] [2019-11-15 20:57:47,047 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:47,047 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:57:47,047 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313694558] [2019-11-15 20:57:47,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:57:47,048 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:47,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:57:47,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:57:47,048 INFO L87 Difference]: Start difference. First operand 140 states and 154 transitions. Second operand 4 states. [2019-11-15 20:57:47,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:47,231 INFO L93 Difference]: Finished difference Result 140 states and 153 transitions. [2019-11-15 20:57:47,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 20:57:47,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-11-15 20:57:47,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:47,233 INFO L225 Difference]: With dead ends: 140 [2019-11-15 20:57:47,233 INFO L226 Difference]: Without dead ends: 140 [2019-11-15 20:57:47,233 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:57:47,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-15 20:57:47,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-11-15 20:57:47,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-15 20:57:47,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 153 transitions. [2019-11-15 20:57:47,238 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 153 transitions. Word has length 25 [2019-11-15 20:57:47,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:47,238 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 153 transitions. [2019-11-15 20:57:47,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:57:47,238 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 153 transitions. [2019-11-15 20:57:47,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 20:57:47,239 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:47,239 INFO L380 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] [2019-11-15 20:57:47,240 INFO L410 AbstractCegarLoop]: === Iteration 11 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:47,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:47,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1400879870, now seen corresponding path program 1 times [2019-11-15 20:57:47,240 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:47,240 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119179693] [2019-11-15 20:57:47,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:47,244 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:47,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:47,311 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119179693] [2019-11-15 20:57:47,312 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:47,312 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:57:47,312 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493475199] [2019-11-15 20:57:47,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:57:47,312 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:47,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:57:47,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:57:47,313 INFO L87 Difference]: Start difference. First operand 140 states and 153 transitions. Second operand 5 states. [2019-11-15 20:57:47,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:47,504 INFO L93 Difference]: Finished difference Result 173 states and 189 transitions. [2019-11-15 20:57:47,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:57:47,505 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-15 20:57:47,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:47,506 INFO L225 Difference]: With dead ends: 173 [2019-11-15 20:57:47,506 INFO L226 Difference]: Without dead ends: 173 [2019-11-15 20:57:47,506 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 20:57:47,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-15 20:57:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 151. [2019-11-15 20:57:47,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-15 20:57:47,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 168 transitions. [2019-11-15 20:57:47,509 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 168 transitions. Word has length 25 [2019-11-15 20:57:47,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:47,510 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 168 transitions. [2019-11-15 20:57:47,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:57:47,510 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 168 transitions. [2019-11-15 20:57:47,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 20:57:47,511 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:47,511 INFO L380 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] [2019-11-15 20:57:47,511 INFO L410 AbstractCegarLoop]: === Iteration 12 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:47,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:47,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1941896724, now seen corresponding path program 1 times [2019-11-15 20:57:47,512 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:47,512 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374236771] [2019-11-15 20:57:47,512 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:47,512 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:47,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:47,600 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374236771] [2019-11-15 20:57:47,600 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:47,600 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 20:57:47,601 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093779446] [2019-11-15 20:57:47,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 20:57:47,601 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:47,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 20:57:47,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 20:57:47,601 INFO L87 Difference]: Start difference. First operand 151 states and 168 transitions. Second operand 7 states. [2019-11-15 20:57:47,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:47,876 INFO L93 Difference]: Finished difference Result 149 states and 162 transitions. [2019-11-15 20:57:47,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 20:57:47,876 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-11-15 20:57:47,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:47,877 INFO L225 Difference]: With dead ends: 149 [2019-11-15 20:57:47,877 INFO L226 Difference]: Without dead ends: 149 [2019-11-15 20:57:47,878 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-15 20:57:47,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-11-15 20:57:47,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 145. [2019-11-15 20:57:47,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-15 20:57:47,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 158 transitions. [2019-11-15 20:57:47,882 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 158 transitions. Word has length 27 [2019-11-15 20:57:47,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:47,883 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 158 transitions. [2019-11-15 20:57:47,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 20:57:47,883 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 158 transitions. [2019-11-15 20:57:47,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 20:57:47,889 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:47,889 INFO L380 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] [2019-11-15 20:57:47,889 INFO L410 AbstractCegarLoop]: === Iteration 13 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:47,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:47,889 INFO L82 PathProgramCache]: Analyzing trace with hash -166889362, now seen corresponding path program 1 times [2019-11-15 20:57:47,890 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:47,890 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773929805] [2019-11-15 20:57:47,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:47,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:47,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:47,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:47,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773929805] [2019-11-15 20:57:47,982 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:47,982 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:57:47,982 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397835086] [2019-11-15 20:57:47,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:57:47,982 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:47,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:57:47,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:57:47,983 INFO L87 Difference]: Start difference. First operand 145 states and 158 transitions. Second operand 5 states. [2019-11-15 20:57:48,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:48,179 INFO L93 Difference]: Finished difference Result 145 states and 157 transitions. [2019-11-15 20:57:48,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:57:48,179 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-15 20:57:48,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:48,180 INFO L225 Difference]: With dead ends: 145 [2019-11-15 20:57:48,180 INFO L226 Difference]: Without dead ends: 145 [2019-11-15 20:57:48,181 INFO L600 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 [2019-11-15 20:57:48,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-11-15 20:57:48,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2019-11-15 20:57:48,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-15 20:57:48,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 157 transitions. [2019-11-15 20:57:48,185 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 157 transitions. Word has length 27 [2019-11-15 20:57:48,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:48,185 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 157 transitions. [2019-11-15 20:57:48,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:57:48,185 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 157 transitions. [2019-11-15 20:57:48,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 20:57:48,186 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:48,187 INFO L380 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] [2019-11-15 20:57:48,187 INFO L410 AbstractCegarLoop]: === Iteration 14 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:48,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:48,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1771572099, now seen corresponding path program 1 times [2019-11-15 20:57:48,188 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:48,188 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825137055] [2019-11-15 20:57:48,188 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:48,188 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:48,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:48,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:48,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825137055] [2019-11-15 20:57:48,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890928358] [2019-11-15 20:57:48,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:57:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:48,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-15 20:57:48,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:57:48,546 INFO L375 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 7 [2019-11-15 20:57:48,547 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:48,554 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:48,557 INFO L375 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 7 [2019-11-15 20:57:48,557 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:48,563 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:48,564 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 20:57:48,564 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:7 [2019-11-15 20:57:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:48,568 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 20:57:48,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 10 [2019-11-15 20:57:48,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42498389] [2019-11-15 20:57:48,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 20:57:48,568 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:48,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 20:57:48,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-15 20:57:48,569 INFO L87 Difference]: Start difference. First operand 145 states and 157 transitions. Second operand 10 states. [2019-11-15 20:57:49,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:49,022 INFO L93 Difference]: Finished difference Result 172 states and 188 transitions. [2019-11-15 20:57:49,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-15 20:57:49,023 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2019-11-15 20:57:49,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:49,024 INFO L225 Difference]: With dead ends: 172 [2019-11-15 20:57:49,024 INFO L226 Difference]: Without dead ends: 172 [2019-11-15 20:57:49,025 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2019-11-15 20:57:49,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-11-15 20:57:49,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 155. [2019-11-15 20:57:49,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-11-15 20:57:49,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 168 transitions. [2019-11-15 20:57:49,029 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 168 transitions. Word has length 30 [2019-11-15 20:57:49,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:49,030 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 168 transitions. [2019-11-15 20:57:49,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 20:57:49,030 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 168 transitions. [2019-11-15 20:57:49,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 20:57:49,030 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:49,031 INFO L380 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] [2019-11-15 20:57:49,235 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:57:49,235 INFO L410 AbstractCegarLoop]: === Iteration 15 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:49,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:49,235 INFO L82 PathProgramCache]: Analyzing trace with hash -915840923, now seen corresponding path program 1 times [2019-11-15 20:57:49,235 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:49,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979716375] [2019-11-15 20:57:49,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:49,236 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:49,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:49,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:49,318 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979716375] [2019-11-15 20:57:49,318 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445902816] [2019-11-15 20:57:49,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:57:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:49,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 20:57:49,438 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:57:49,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:49,533 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 20:57:49,533 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2019-11-15 20:57:49,533 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082031139] [2019-11-15 20:57:49,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-15 20:57:49,534 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:49,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-15 20:57:49,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-15 20:57:49,535 INFO L87 Difference]: Start difference. First operand 155 states and 168 transitions. Second operand 9 states. [2019-11-15 20:57:49,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:49,733 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2019-11-15 20:57:49,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:57:49,733 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2019-11-15 20:57:49,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:49,734 INFO L225 Difference]: With dead ends: 165 [2019-11-15 20:57:49,734 INFO L226 Difference]: Without dead ends: 146 [2019-11-15 20:57:49,734 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-15 20:57:49,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-15 20:57:49,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-11-15 20:57:49,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-11-15 20:57:49,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 158 transitions. [2019-11-15 20:57:49,737 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 158 transitions. Word has length 31 [2019-11-15 20:57:49,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:49,738 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 158 transitions. [2019-11-15 20:57:49,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-15 20:57:49,738 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 158 transitions. [2019-11-15 20:57:49,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-15 20:57:49,739 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:49,739 INFO L380 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] [2019-11-15 20:57:49,943 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:57:49,943 INFO L410 AbstractCegarLoop]: === Iteration 16 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:49,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:49,943 INFO L82 PathProgramCache]: Analyzing trace with hash -2016098241, now seen corresponding path program 1 times [2019-11-15 20:57:49,944 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:49,944 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716529058] [2019-11-15 20:57:49,944 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:49,944 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:49,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:49,990 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716529058] [2019-11-15 20:57:49,990 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:57:49,990 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 20:57:49,990 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189379263] [2019-11-15 20:57:49,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 20:57:49,991 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:49,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 20:57:49,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:57:49,991 INFO L87 Difference]: Start difference. First operand 146 states and 158 transitions. Second operand 4 states. [2019-11-15 20:57:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:50,202 INFO L93 Difference]: Finished difference Result 217 states and 235 transitions. [2019-11-15 20:57:50,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 20:57:50,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2019-11-15 20:57:50,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:50,203 INFO L225 Difference]: With dead ends: 217 [2019-11-15 20:57:50,203 INFO L226 Difference]: Without dead ends: 217 [2019-11-15 20:57:50,203 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 20:57:50,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-11-15 20:57:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 166. [2019-11-15 20:57:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2019-11-15 20:57:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 179 transitions. [2019-11-15 20:57:50,208 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 179 transitions. Word has length 39 [2019-11-15 20:57:50,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:50,209 INFO L462 AbstractCegarLoop]: Abstraction has 166 states and 179 transitions. [2019-11-15 20:57:50,209 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 20:57:50,209 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 179 transitions. [2019-11-15 20:57:50,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-15 20:57:50,209 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:50,210 INFO L380 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] [2019-11-15 20:57:50,210 INFO L410 AbstractCegarLoop]: === Iteration 17 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:50,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:50,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1116613087, now seen corresponding path program 1 times [2019-11-15 20:57:50,211 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:50,211 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615904822] [2019-11-15 20:57:50,211 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:50,211 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:50,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:50,457 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615904822] [2019-11-15 20:57:50,457 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082209406] [2019-11-15 20:57:50,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:57:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:50,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-15 20:57:50,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:57:50,601 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:50,602 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-15 20:57:50,602 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:50,630 INFO L567 ElimStorePlain]: treesize reduction 14, result has 60.0 percent of original size [2019-11-15 20:57:50,631 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-15 20:57:50,631 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2019-11-15 20:57:50,661 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-15 20:57:50,662 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:50,670 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:50,671 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 20:57:50,671 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:29 [2019-11-15 20:57:50,744 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:50,744 INFO L375 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 57 [2019-11-15 20:57:50,745 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-15 20:57:50,746 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:57:50,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:57:50,750 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2019-11-15 20:57:50,796 INFO L567 ElimStorePlain]: treesize reduction 136, result has 24.0 percent of original size [2019-11-15 20:57:50,796 INFO L496 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. [2019-11-15 20:57:50,797 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:50, output treesize:42 [2019-11-15 20:57:50,926 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:50,926 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 110 [2019-11-15 20:57:50,927 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:50,963 INFO L567 ElimStorePlain]: treesize reduction 54, result has 44.9 percent of original size [2019-11-15 20:57:50,963 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 20:57:50,963 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:54, output treesize:29 [2019-11-15 20:57:51,048 INFO L341 Elim1Store]: treesize reduction 38, result has 56.3 percent of original size [2019-11-15 20:57:51,048 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 79 [2019-11-15 20:57:51,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:57:51,050 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:51,065 INFO L567 ElimStorePlain]: treesize reduction 32, result has 51.5 percent of original size [2019-11-15 20:57:51,065 INFO L496 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. [2019-11-15 20:57:51,065 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:65, output treesize:34 [2019-11-15 20:57:51,122 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:51,122 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 31 [2019-11-15 20:57:51,122 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:51,132 INFO L567 ElimStorePlain]: treesize reduction 12, result has 55.6 percent of original size [2019-11-15 20:57:51,133 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 20:57:51,133 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:41, output treesize:15 [2019-11-15 20:57:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:51,194 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 20:57:51,195 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 25 [2019-11-15 20:57:51,195 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961916815] [2019-11-15 20:57:51,196 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-15 20:57:51,196 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:51,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-15 20:57:51,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2019-11-15 20:57:51,197 INFO L87 Difference]: Start difference. First operand 166 states and 179 transitions. Second operand 26 states. [2019-11-15 20:57:52,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:52,528 INFO L93 Difference]: Finished difference Result 238 states and 258 transitions. [2019-11-15 20:57:52,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-11-15 20:57:52,528 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 46 [2019-11-15 20:57:52,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:52,530 INFO L225 Difference]: With dead ends: 238 [2019-11-15 20:57:52,530 INFO L226 Difference]: Without dead ends: 238 [2019-11-15 20:57:52,531 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=501, Invalid=1653, Unknown=8, NotChecked=0, Total=2162 [2019-11-15 20:57:52,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-11-15 20:57:52,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 192. [2019-11-15 20:57:52,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-11-15 20:57:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 210 transitions. [2019-11-15 20:57:52,536 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 210 transitions. Word has length 46 [2019-11-15 20:57:52,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:52,536 INFO L462 AbstractCegarLoop]: Abstraction has 192 states and 210 transitions. [2019-11-15 20:57:52,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-15 20:57:52,536 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 210 transitions. [2019-11-15 20:57:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-15 20:57:52,537 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:52,537 INFO L380 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] [2019-11-15 20:57:52,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:57:52,743 INFO L410 AbstractCegarLoop]: === Iteration 18 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:52,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:52,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1116613086, now seen corresponding path program 1 times [2019-11-15 20:57:52,744 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:52,744 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274247138] [2019-11-15 20:57:52,744 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:52,744 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:52,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:53,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:53,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274247138] [2019-11-15 20:57:53,155 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546580797] [2019-11-15 20:57:53,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:57:53,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:53,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 38 conjunts are in the unsatisfiable core [2019-11-15 20:57:53,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:57:53,303 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_65|], 1=[|v_#valid_77|]} [2019-11-15 20:57:53,307 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select 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 [2019-11-15 20:57:53,307 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:53,319 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:53,329 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:53,329 INFO L375 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-15 20:57:53,330 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:53,344 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:53,345 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-15 20:57:53,345 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:19 [2019-11-15 20:57:53,353 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 7 [2019-11-15 20:57:53,354 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:53,371 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:53,379 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-15 20:57:53,379 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:53,396 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:53,397 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 20:57:53,397 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:31 [2019-11-15 20:57:53,485 INFO L375 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 29 treesize of output 24 [2019-11-15 20:57:53,485 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:53,506 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:53,531 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:53,531 INFO L375 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 66 [2019-11-15 20:57:53,532 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:57:53,533 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-11-15 20:57:53,584 INFO L567 ElimStorePlain]: treesize reduction 48, result has 54.7 percent of original size [2019-11-15 20:57:53,585 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 20:57:53,585 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:73, output treesize:57 [2019-11-15 20:57:53,807 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:53,808 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 119 [2019-11-15 20:57:53,809 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:53,850 INFO L567 ElimStorePlain]: treesize reduction 54, result has 55.0 percent of original size [2019-11-15 20:57:53,863 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:53,863 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 52 [2019-11-15 20:57:53,864 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:53,901 INFO L567 ElimStorePlain]: treesize reduction 16, result has 81.0 percent of original size [2019-11-15 20:57:53,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:57:53,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:57:53,902 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 20:57:53,903 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:80, output treesize:38 [2019-11-15 20:57:53,987 INFO L341 Elim1Store]: treesize reduction 38, result has 56.3 percent of original size [2019-11-15 20:57:53,987 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 105 [2019-11-15 20:57:53,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-15 20:57:53,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:57:53,989 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:57:53,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:57:53,990 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2019-11-15 20:57:54,052 INFO L567 ElimStorePlain]: treesize reduction 166, result has 32.2 percent of original size [2019-11-15 20:57:54,055 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-15 20:57:54,056 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 53 [2019-11-15 20:57:54,056 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:54,064 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:54,065 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-15 20:57:54,065 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:109, output treesize:47 [2019-11-15 20:57:54,134 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:54,135 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 38 [2019-11-15 20:57:54,135 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:54,156 INFO L567 ElimStorePlain]: treesize reduction 12, result has 72.1 percent of original size [2019-11-15 20:57:54,159 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2019-11-15 20:57:54,160 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-15 20:57:54,165 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:57:54,166 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 20:57:54,166 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:61, output treesize:9 [2019-11-15 20:57:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:57:54,211 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 20:57:54,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 23 [2019-11-15 20:57:54,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860879114] [2019-11-15 20:57:54,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-15 20:57:54,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:57:54,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-15 20:57:54,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2019-11-15 20:57:54,213 INFO L87 Difference]: Start difference. First operand 192 states and 210 transitions. Second operand 24 states. [2019-11-15 20:57:55,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:57:55,951 INFO L93 Difference]: Finished difference Result 227 states and 248 transitions. [2019-11-15 20:57:55,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-15 20:57:55,951 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 46 [2019-11-15 20:57:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:57:55,952 INFO L225 Difference]: With dead ends: 227 [2019-11-15 20:57:55,952 INFO L226 Difference]: Without dead ends: 227 [2019-11-15 20:57:55,953 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=327, Invalid=1650, Unknown=3, NotChecked=0, Total=1980 [2019-11-15 20:57:55,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-11-15 20:57:55,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 196. [2019-11-15 20:57:55,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2019-11-15 20:57:55,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 213 transitions. [2019-11-15 20:57:55,958 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 213 transitions. Word has length 46 [2019-11-15 20:57:55,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:57:55,958 INFO L462 AbstractCegarLoop]: Abstraction has 196 states and 213 transitions. [2019-11-15 20:57:55,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-15 20:57:55,959 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 213 transitions. [2019-11-15 20:57:55,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-15 20:57:55,959 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:57:55,959 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:57:56,160 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 20:57:56,161 INFO L410 AbstractCegarLoop]: === Iteration 19 === [mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION]=== [2019-11-15 20:57:56,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:57:56,161 INFO L82 PathProgramCache]: Analyzing trace with hash 38564742, now seen corresponding path program 1 times [2019-11-15 20:57:56,161 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:57:56,161 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239061023] [2019-11-15 20:57:56,161 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:56,161 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:57:56,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:57:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:57:56,216 ERROR L253 erpolLogProxyWrapper]: Interpolant 13 not inductive [2019-11-15 20:57:56,226 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:221) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:863) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:193) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 20:57:56,230 INFO L168 Benchmark]: Toolchain (without parser) took 16305.46 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 274.7 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -66.3 MB). Peak memory consumption was 208.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:56,230 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:57:56,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:56,231 INFO L168 Benchmark]: Boogie Preprocessor took 69.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:56,231 INFO L168 Benchmark]: RCFGBuilder took 887.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:56,232 INFO L168 Benchmark]: TraceAbstraction took 14822.28 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 144.7 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 30.7 MB). Peak memory consumption was 175.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:57:56,240 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 522.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.66 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 887.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14822.28 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 144.7 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 30.7 MB). Peak memory consumption was 175.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:221) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 20:57:58,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:57:58,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:57:58,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:57:58,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:57:58,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:57:58,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:57:58,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:57:58,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:57:58,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:57:58,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:57:58,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:57:58,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:57:58,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:57:58,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:57:58,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:57:58,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:57:58,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:57:58,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:57:58,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:57:58,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:57:58,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:57:58,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:57:58,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:57:58,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:57:58,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:57:58,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:57:58,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:57:58,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:57:58,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:57:58,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:57:58,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:57:58,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:57:58,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:57:58,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:57:58,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:57:58,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:57:58,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:57:58,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:57:58,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:57:58,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:57:58,443 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-11-15 20:57:58,456 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:57:58,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:57:58,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:57:58,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:57:58,458 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:57:58,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:57:58,459 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:57:58,459 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 20:57:58,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:57:58,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:57:58,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:57:58,460 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-15 20:57:58,460 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-15 20:57:58,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:57:58,460 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:57:58,460 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:57:58,461 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:57:58,461 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:57:58,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:57:58,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:57:58,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:57:58,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:57:58,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:57:58,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:57:58,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:57:58,463 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:57:58,463 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:57:58,463 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:57:58,463 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) 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 -> 39996758d4a4793ed5619e696b4574ccdffaa666 [2019-11-15 20:57:58,522 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:57:58,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:57:58,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:57:58,536 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:57:58,537 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:57:58,537 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-queue-2.i [2019-11-15 20:57:58,588 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/data/0799e1c92/bed66027c6454ec0b1ff0d6ed20e8190/FLAG6fb0aef9d [2019-11-15 20:57:59,079 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:57:59,083 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/sv-benchmarks/c/forester-heap/dll-queue-2.i [2019-11-15 20:57:59,102 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/data/0799e1c92/bed66027c6454ec0b1ff0d6ed20e8190/FLAG6fb0aef9d [2019-11-15 20:57:59,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/data/0799e1c92/bed66027c6454ec0b1ff0d6ed20e8190 [2019-11-15 20:57:59,557 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:57:59,558 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-15 20:57:59,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:57:59,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:57:59,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:57:59,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:57:59" (1/1) ... [2019-11-15 20:57:59,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d118ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:57:59, skipping insertion in model container [2019-11-15 20:57:59,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:57:59" (1/1) ... [2019-11-15 20:57:59,573 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:57:59,607 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:57:59,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:00,005 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:58:00,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:58:00,125 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:58:00,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:00 WrapperNode [2019-11-15 20:58:00,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:58:00,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:58:00,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:58:00,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:58:00,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:00" (1/1) ... [2019-11-15 20:58:00,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:00" (1/1) ... [2019-11-15 20:58:00,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:00" (1/1) ... [2019-11-15 20:58:00,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:00" (1/1) ... [2019-11-15 20:58:00,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:00" (1/1) ... [2019-11-15 20:58:00,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:00" (1/1) ... [2019-11-15 20:58:00,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:00" (1/1) ... [2019-11-15 20:58:00,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:58:00,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:58:00,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:58:00,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:58:00,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/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 [2019-11-15 20:58:00,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-15 20:58:00,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:58:00,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-15 20:58:00,273 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-15 20:58:00,274 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-15 20:58:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-15 20:58:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-15 20:58:00,275 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-15 20:58:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-15 20:58:00,276 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-15 20:58:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-15 20:58:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-15 20:58:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-15 20:58:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-15 20:58:00,277 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-15 20:58:00,278 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-15 20:58:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-15 20:58:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-15 20:58:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-15 20:58:00,280 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-15 20:58:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-15 20:58:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-15 20:58:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-15 20:58:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-15 20:58:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-15 20:58:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-15 20:58:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-15 20:58:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-15 20:58:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-15 20:58:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-15 20:58:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-15 20:58:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-15 20:58:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-15 20:58:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-15 20:58:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-15 20:58:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-15 20:58:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-15 20:58:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-15 20:58:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-15 20:58:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-15 20:58:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-15 20:58:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-15 20:58:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-15 20:58:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-15 20:58:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-15 20:58:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-15 20:58:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-15 20:58:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-15 20:58:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-15 20:58:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-15 20:58:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-15 20:58:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-15 20:58:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-15 20:58:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-15 20:58:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-15 20:58:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-15 20:58:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-15 20:58:00,289 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-15 20:58:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-15 20:58:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-15 20:58:00,290 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-15 20:58:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-15 20:58:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-15 20:58:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-15 20:58:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-15 20:58:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-15 20:58:00,291 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-15 20:58:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-15 20:58:00,292 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-15 20:58:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-15 20:58:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-15 20:58:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-15 20:58:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-15 20:58:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-15 20:58:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-15 20:58:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-15 20:58:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-15 20:58:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-15 20:58:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-15 20:58:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-15 20:58:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-15 20:58:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-15 20:58:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-15 20:58:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-15 20:58:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-15 20:58:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-15 20:58:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-15 20:58:00,298 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-15 20:58:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-15 20:58:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-15 20:58:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-15 20:58:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-15 20:58:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-15 20:58:00,299 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-15 20:58:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-15 20:58:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-15 20:58:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-15 20:58:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-15 20:58:00,300 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-15 20:58:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-15 20:58:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-15 20:58:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-15 20:58:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-15 20:58:00,301 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-15 20:58:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-15 20:58:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-15 20:58:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-15 20:58:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-15 20:58:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-15 20:58:00,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 20:58:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-15 20:58:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 20:58:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-15 20:58:00,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:58:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:58:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-15 20:58:00,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:58:01,442 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:58:01,442 INFO L284 CfgBuilder]: Removed 31 assume(true) statements. [2019-11-15 20:58:01,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:01 BoogieIcfgContainer [2019-11-15 20:58:01,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:58:01,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:58:01,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:58:01,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:58:01,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:57:59" (1/3) ... [2019-11-15 20:58:01,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2c650c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:58:01, skipping insertion in model container [2019-11-15 20:58:01,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:58:00" (2/3) ... [2019-11-15 20:58:01,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2c650c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:58:01, skipping insertion in model container [2019-11-15 20:58:01,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:58:01" (3/3) ... [2019-11-15 20:58:01,453 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-queue-2.i [2019-11-15 20:58:01,462 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:58:01,472 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 62 error locations. [2019-11-15 20:58:01,485 INFO L249 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2019-11-15 20:58:01,503 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:58:01,504 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-15 20:58:01,504 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:58:01,504 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:58:01,505 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:58:01,505 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:58:01,506 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:58:01,506 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:58:01,531 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2019-11-15 20:58:01,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 20:58:01,545 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:58:01,550 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:58:01,557 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr11REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr56REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr25REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION]=== [2019-11-15 20:58:01,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:58:01,564 INFO L82 PathProgramCache]: Analyzing trace with hash 2050322133, now seen corresponding path program 1 times [2019-11-15 20:58:01,573 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:58:01,574 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1407081891] [2019-11-15 20:58:01,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f8849be4-2075-4309-8ecd-14e125df3464/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 20:58:01,815 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 20:58:01,816 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort C_DOUBLE not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:160) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:168) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferSymbols(SmtFunctionsAndAxioms.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleTraceCheck.createExternalManagedScript(IpTcStrategyModuleTraceCheck.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 20:58:01,820 INFO L168 Benchmark]: Toolchain (without parser) took 2261.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 945.6 MB in the beginning and 1.0 GB in the end (delta: -83.6 MB). Peak memory consumption was 57.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:01,821 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:58:01,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:01,822 INFO L168 Benchmark]: Boogie Preprocessor took 71.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:01,824 INFO L168 Benchmark]: RCFGBuilder took 1245.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:01,824 INFO L168 Benchmark]: TraceAbstraction took 374.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-15 20:58:01,827 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 566.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 71.67 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1245.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 374.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Sort C_DOUBLE not declared de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Sort C_DOUBLE not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:412) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...