./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/lockfree-3.2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9281afa68f10f88b0abb59461461cab9597c1d50 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9281afa68f10f88b0abb59461461cab9597c1d50 .................................................................................................................................................................................................................................................................................................................................................................. 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 [2019-10-22 08:57:34,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:34,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:34,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:34,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:34,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:34,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:34,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:34,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:34,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:34,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:34,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:34,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:34,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:34,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:34,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:34,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:34,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:34,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:34,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:34,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:34,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:34,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:34,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:34,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:34,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:34,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:34,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:34,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:34,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:34,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:34,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:34,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:34,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:34,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:34,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:34,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:34,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:34,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:34,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:34,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:34,517 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-10-22 08:57:34,531 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:34,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:34,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:34,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:34,533 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:34,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:34,533 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:34,533 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:57:34,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:34,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:34,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:34,534 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:57:34,534 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:57:34,534 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:57:34,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:34,535 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:34,536 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:34,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:34,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:34,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:34,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:34,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:34,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:34,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:34,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:34,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:34,538 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/working_dir_847f257b-200b-493e-9221-546af1296799/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9281afa68f10f88b0abb59461461cab9597c1d50 [2019-10-22 08:57:34,570 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:34,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:34,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:34,599 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:34,600 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:34,601 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/../../sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-10-22 08:57:34,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/data/6dec165a0/cfecd6a9c28f48c9a3bf8843c00a2180/FLAGa893b8895 [2019-10-22 08:57:35,112 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:35,113 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-10-22 08:57:35,131 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/data/6dec165a0/cfecd6a9c28f48c9a3bf8843c00a2180/FLAGa893b8895 [2019-10-22 08:57:35,623 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/data/6dec165a0/cfecd6a9c28f48c9a3bf8843c00a2180 [2019-10-22 08:57:35,625 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:35,626 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:57:35,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:35,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:35,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:35,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:35" (1/1) ... [2019-10-22 08:57:35,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0e4413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:35, skipping insertion in model container [2019-10-22 08:57:35,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:35" (1/1) ... [2019-10-22 08:57:35,640 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:35,671 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:36,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:36,083 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:36,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:36,168 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:36,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:36 WrapperNode [2019-10-22 08:57:36,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:36,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:36,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:36,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:36,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:36" (1/1) ... [2019-10-22 08:57:36,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:36" (1/1) ... [2019-10-22 08:57:36,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:36" (1/1) ... [2019-10-22 08:57:36,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:36" (1/1) ... [2019-10-22 08:57:36,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:36" (1/1) ... [2019-10-22 08:57:36,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:36" (1/1) ... [2019-10-22 08:57:36,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:36" (1/1) ... [2019-10-22 08:57:36,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:36,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:36,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:36,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:36,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/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 [2019-10-22 08:57:36,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:57:36,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:36,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:57:36,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:57:36,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 08:57:36,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 08:57:36,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 08:57:36,270 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2019-10-22 08:57:36,270 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2019-10-22 08:57:36,270 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:57:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:57:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:57:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:57:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:57:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:57:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:57:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:57:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:57:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:57:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:57:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:57:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:57:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:57:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:57:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:57:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:57:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:57:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:57:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:57:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 08:57:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 08:57:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 08:57:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:57:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:57:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:57:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:57:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:57:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:57:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:57:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:57:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:57:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:57:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:57:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:57:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:57:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:57:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:57:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:57:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:57:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:57:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:57:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:57:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:57:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:57:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:57:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:57:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:57:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:57:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:57:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:57:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:57:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:57:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:57:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:57:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:57:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:57:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:57:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:57:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:57:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:57:36,279 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:57:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:57:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:57:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:57:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:57:36,283 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:57:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:57:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:57:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:57:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:57:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:57:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:57:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:57:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:57:36,284 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:57:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:57:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:57:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:57:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:57:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:57:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:57:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:57:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:57:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:57:36,285 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:57:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:57:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:57:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:57:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:57:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:57:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:57:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:57:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:57:36,286 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:57:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:57:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:57:36,287 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:57:36,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:57:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure push [2019-10-22 08:57:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:57:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:57:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2019-10-22 08:57:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:57:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:57:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:57:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:36,804 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:36,805 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-22 08:57:36,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:36 BoogieIcfgContainer [2019-10-22 08:57:36,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:36,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:36,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:36,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:36,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:35" (1/3) ... [2019-10-22 08:57:36,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b84a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:36, skipping insertion in model container [2019-10-22 08:57:36,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:36" (2/3) ... [2019-10-22 08:57:36,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b84a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:36, skipping insertion in model container [2019-10-22 08:57:36,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:36" (3/3) ... [2019-10-22 08:57:36,812 INFO L109 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2019-10-22 08:57:36,821 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:36,828 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-10-22 08:57:36,838 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-10-22 08:57:36,860 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:36,861 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:57:36,861 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:36,861 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:36,862 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:36,862 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:36,862 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:36,862 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:36,881 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-10-22 08:57:36,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 08:57:36,893 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:36,894 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:36,896 INFO L410 AbstractCegarLoop]: === Iteration 1 === [popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-10-22 08:57:36,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:36,902 INFO L82 PathProgramCache]: Analyzing trace with hash 406886108, now seen corresponding path program 1 times [2019-10-22 08:57:36,909 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:36,911 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034661421] [2019-10-22 08:57:36,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:36,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:36,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:37,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:37,185 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034661421] [2019-10-22 08:57:37,185 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:37,185 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:37,185 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135212734] [2019-10-22 08:57:37,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:37,191 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:37,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:37,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:37,208 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2019-10-22 08:57:37,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:37,435 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2019-10-22 08:57:37,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:37,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-22 08:57:37,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:37,449 INFO L225 Difference]: With dead ends: 92 [2019-10-22 08:57:37,449 INFO L226 Difference]: Without dead ends: 89 [2019-10-22 08:57:37,451 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:37,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-10-22 08:57:37,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 71. [2019-10-22 08:57:37,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-10-22 08:57:37,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2019-10-22 08:57:37,498 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 8 [2019-10-22 08:57:37,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:37,499 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2019-10-22 08:57:37,499 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:37,499 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2019-10-22 08:57:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:57:37,500 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:37,500 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:37,501 INFO L410 AbstractCegarLoop]: === Iteration 2 === [popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-10-22 08:57:37,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:37,501 INFO L82 PathProgramCache]: Analyzing trace with hash 155309773, now seen corresponding path program 1 times [2019-10-22 08:57:37,501 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:37,501 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984308251] [2019-10-22 08:57:37,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:37,502 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:37,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:37,650 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984308251] [2019-10-22 08:57:37,650 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:37,650 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:37,650 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737041445] [2019-10-22 08:57:37,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:37,652 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:37,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:37,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:37,652 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 4 states. [2019-10-22 08:57:37,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:37,915 INFO L93 Difference]: Finished difference Result 91 states and 114 transitions. [2019-10-22 08:57:37,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:37,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 08:57:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:37,918 INFO L225 Difference]: With dead ends: 91 [2019-10-22 08:57:37,918 INFO L226 Difference]: Without dead ends: 91 [2019-10-22 08:57:37,919 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:37,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-10-22 08:57:37,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 72. [2019-10-22 08:57:37,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-10-22 08:57:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2019-10-22 08:57:37,931 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 10 [2019-10-22 08:57:37,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:37,932 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2019-10-22 08:57:37,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:37,932 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2019-10-22 08:57:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:57:37,933 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:37,933 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:37,933 INFO L410 AbstractCegarLoop]: === Iteration 3 === [popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-10-22 08:57:37,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:37,934 INFO L82 PathProgramCache]: Analyzing trace with hash 155369355, now seen corresponding path program 1 times [2019-10-22 08:57:37,934 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:37,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267656030] [2019-10-22 08:57:37,934 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:37,934 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:37,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:38,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:38,106 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267656030] [2019-10-22 08:57:38,106 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:38,106 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:38,106 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643063591] [2019-10-22 08:57:38,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:38,107 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:38,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:38,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:38,108 INFO L87 Difference]: Start difference. First operand 72 states and 89 transitions. Second operand 4 states. [2019-10-22 08:57:38,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:38,354 INFO L93 Difference]: Finished difference Result 135 states and 176 transitions. [2019-10-22 08:57:38,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:38,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 08:57:38,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:38,356 INFO L225 Difference]: With dead ends: 135 [2019-10-22 08:57:38,356 INFO L226 Difference]: Without dead ends: 135 [2019-10-22 08:57:38,357 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:38,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-10-22 08:57:38,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 108. [2019-10-22 08:57:38,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-22 08:57:38,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2019-10-22 08:57:38,367 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 153 transitions. Word has length 10 [2019-10-22 08:57:38,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:38,367 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 153 transitions. [2019-10-22 08:57:38,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:38,368 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 153 transitions. [2019-10-22 08:57:38,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 08:57:38,368 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:38,368 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:38,369 INFO L410 AbstractCegarLoop]: === Iteration 4 === [popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-10-22 08:57:38,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:38,369 INFO L82 PathProgramCache]: Analyzing trace with hash 521481310, now seen corresponding path program 1 times [2019-10-22 08:57:38,369 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:38,369 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231538090] [2019-10-22 08:57:38,370 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:38,370 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:38,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:38,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:38,440 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231538090] [2019-10-22 08:57:38,441 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:38,441 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:38,441 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011625621] [2019-10-22 08:57:38,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:38,441 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:38,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:38,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:38,442 INFO L87 Difference]: Start difference. First operand 108 states and 153 transitions. Second operand 4 states. [2019-10-22 08:57:38,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:38,613 INFO L93 Difference]: Finished difference Result 149 states and 214 transitions. [2019-10-22 08:57:38,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:57:38,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 08:57:38,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:38,615 INFO L225 Difference]: With dead ends: 149 [2019-10-22 08:57:38,615 INFO L226 Difference]: Without dead ends: 144 [2019-10-22 08:57:38,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:38,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-22 08:57:38,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2019-10-22 08:57:38,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-10-22 08:57:38,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 183 transitions. [2019-10-22 08:57:38,627 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 183 transitions. Word has length 11 [2019-10-22 08:57:38,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:38,628 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 183 transitions. [2019-10-22 08:57:38,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:38,628 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 183 transitions. [2019-10-22 08:57:38,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:57:38,628 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:38,628 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:38,629 INFO L410 AbstractCegarLoop]: === Iteration 5 === [popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-10-22 08:57:38,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:38,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1196811089, now seen corresponding path program 1 times [2019-10-22 08:57:38,629 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:38,629 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669562237] [2019-10-22 08:57:38,630 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:38,630 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:38,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:38,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:38,703 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669562237] [2019-10-22 08:57:38,703 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:38,703 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:38,703 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417050478] [2019-10-22 08:57:38,704 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:38,704 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:38,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:38,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:38,705 INFO L87 Difference]: Start difference. First operand 126 states and 183 transitions. Second operand 4 states. [2019-10-22 08:57:39,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:39,000 INFO L93 Difference]: Finished difference Result 220 states and 325 transitions. [2019-10-22 08:57:39,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:39,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-22 08:57:39,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:39,002 INFO L225 Difference]: With dead ends: 220 [2019-10-22 08:57:39,002 INFO L226 Difference]: Without dead ends: 220 [2019-10-22 08:57:39,002 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:39,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-10-22 08:57:39,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 193. [2019-10-22 08:57:39,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-10-22 08:57:39,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 298 transitions. [2019-10-22 08:57:39,017 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 298 transitions. Word has length 13 [2019-10-22 08:57:39,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:39,017 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 298 transitions. [2019-10-22 08:57:39,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:39,017 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 298 transitions. [2019-10-22 08:57:39,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:57:39,017 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:39,018 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:39,018 INFO L410 AbstractCegarLoop]: === Iteration 6 === [popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-10-22 08:57:39,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:39,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1196811090, now seen corresponding path program 1 times [2019-10-22 08:57:39,018 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:39,018 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144999589] [2019-10-22 08:57:39,019 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,019 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:39,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:39,093 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144999589] [2019-10-22 08:57:39,094 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:39,094 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:39,094 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005884484] [2019-10-22 08:57:39,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:39,094 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:39,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:39,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:39,095 INFO L87 Difference]: Start difference. First operand 193 states and 298 transitions. Second operand 4 states. [2019-10-22 08:57:39,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:39,406 INFO L93 Difference]: Finished difference Result 271 states and 408 transitions. [2019-10-22 08:57:39,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:39,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-10-22 08:57:39,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:39,408 INFO L225 Difference]: With dead ends: 271 [2019-10-22 08:57:39,408 INFO L226 Difference]: Without dead ends: 271 [2019-10-22 08:57:39,409 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:39,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-10-22 08:57:39,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 247. [2019-10-22 08:57:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-10-22 08:57:39,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2019-10-22 08:57:39,425 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 13 [2019-10-22 08:57:39,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:39,426 INFO L462 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2019-10-22 08:57:39,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:39,426 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2019-10-22 08:57:39,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 08:57:39,426 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:39,426 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:39,427 INFO L410 AbstractCegarLoop]: === Iteration 7 === [popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-10-22 08:57:39,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:39,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1553554911, now seen corresponding path program 1 times [2019-10-22 08:57:39,434 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:39,434 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035335044] [2019-10-22 08:57:39,435 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,435 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:39,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:39,539 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035335044] [2019-10-22 08:57:39,539 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:39,539 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:57:39,539 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166344214] [2019-10-22 08:57:39,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:57:39,540 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:39,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:57:39,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:57:39,540 INFO L87 Difference]: Start difference. First operand 247 states and 382 transitions. Second operand 6 states. [2019-10-22 08:57:39,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:39,791 INFO L93 Difference]: Finished difference Result 473 states and 709 transitions. [2019-10-22 08:57:39,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:57:39,792 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-10-22 08:57:39,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:39,794 INFO L225 Difference]: With dead ends: 473 [2019-10-22 08:57:39,794 INFO L226 Difference]: Without dead ends: 473 [2019-10-22 08:57:39,795 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:39,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-10-22 08:57:39,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 439. [2019-10-22 08:57:39,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2019-10-22 08:57:39,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 675 transitions. [2019-10-22 08:57:39,814 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 675 transitions. Word has length 14 [2019-10-22 08:57:39,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:39,814 INFO L462 AbstractCegarLoop]: Abstraction has 439 states and 675 transitions. [2019-10-22 08:57:39,814 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:57:39,814 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 675 transitions. [2019-10-22 08:57:39,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:57:39,814 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:39,815 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:39,815 INFO L410 AbstractCegarLoop]: === Iteration 8 === [popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-10-22 08:57:39,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:39,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1849836300, now seen corresponding path program 1 times [2019-10-22 08:57:39,816 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:39,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143220697] [2019-10-22 08:57:39,816 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,816 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:39,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:39,923 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143220697] [2019-10-22 08:57:39,923 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:39,923 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:57:39,923 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108878388] [2019-10-22 08:57:39,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:57:39,924 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:39,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:57:39,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:57:39,924 INFO L87 Difference]: Start difference. First operand 439 states and 675 transitions. Second operand 6 states. [2019-10-22 08:57:40,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:40,177 INFO L93 Difference]: Finished difference Result 825 states and 1195 transitions. [2019-10-22 08:57:40,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:57:40,178 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-10-22 08:57:40,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:40,182 INFO L225 Difference]: With dead ends: 825 [2019-10-22 08:57:40,182 INFO L226 Difference]: Without dead ends: 825 [2019-10-22 08:57:40,183 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:40,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-10-22 08:57:40,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 787. [2019-10-22 08:57:40,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-10-22 08:57:40,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1155 transitions. [2019-10-22 08:57:40,213 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1155 transitions. Word has length 15 [2019-10-22 08:57:40,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:40,213 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1155 transitions. [2019-10-22 08:57:40,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:57:40,213 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1155 transitions. [2019-10-22 08:57:40,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:57:40,214 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:40,214 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] [2019-10-22 08:57:40,215 INFO L410 AbstractCegarLoop]: === Iteration 9 === [popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-10-22 08:57:40,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:40,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1460861468, now seen corresponding path program 1 times [2019-10-22 08:57:40,215 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:40,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269433119] [2019-10-22 08:57:40,215 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:40,216 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:40,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:40,365 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:40,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269433119] [2019-10-22 08:57:40,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857626740] [2019-10-22 08:57:40,365 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/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 [2019-10-22 08:57:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:40,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-22 08:57:40,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:40,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 08:57:40,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:40,581 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:57:40,581 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2019-10-22 08:57:40,582 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550586254] [2019-10-22 08:57:40,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 08:57:40,582 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:40,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 08:57:40,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:57:40,583 INFO L87 Difference]: Start difference. First operand 787 states and 1155 transitions. Second operand 12 states. [2019-10-22 08:57:40,947 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-10-22 08:57:41,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:41,856 INFO L93 Difference]: Finished difference Result 2623 states and 3920 transitions. [2019-10-22 08:57:41,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-22 08:57:41,860 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-10-22 08:57:41,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:41,874 INFO L225 Difference]: With dead ends: 2623 [2019-10-22 08:57:41,874 INFO L226 Difference]: Without dead ends: 2623 [2019-10-22 08:57:41,874 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=541, Unknown=0, NotChecked=0, Total=756 [2019-10-22 08:57:41,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2019-10-22 08:57:41,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2455. [2019-10-22 08:57:41,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2455 states. [2019-10-22 08:57:41,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3589 transitions. [2019-10-22 08:57:41,973 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3589 transitions. Word has length 22 [2019-10-22 08:57:41,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:41,973 INFO L462 AbstractCegarLoop]: Abstraction has 2455 states and 3589 transitions. [2019-10-22 08:57:41,973 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 08:57:41,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3589 transitions. [2019-10-22 08:57:41,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:57:41,974 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:41,974 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] [2019-10-22 08:57:42,179 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:57:42,179 INFO L410 AbstractCegarLoop]: === Iteration 10 === [popErr0REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, pushErr0REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-10-22 08:57:42,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:42,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1813037474, now seen corresponding path program 1 times [2019-10-22 08:57:42,180 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:42,180 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762525012] [2019-10-22 08:57:42,180 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:42,180 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:42,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:42,267 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:42,267 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:57:42,294 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-10-22 08:57:42,304 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-22 08:57:42,305 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-22 08:57:42,306 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-10-22 08:57:42,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:42 BoogieIcfgContainer [2019-10-22 08:57:42,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:42,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:42,335 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:42,335 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:42,335 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:36" (3/4) ... [2019-10-22 08:57:42,338 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:57:42,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:42,340 INFO L168 Benchmark]: Toolchain (without parser) took 6713.55 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 318.2 MB). Free memory was 939.1 MB in the beginning and 1.0 GB in the end (delta: -108.3 MB). Peak memory consumption was 209.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:42,340 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:42,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 939.1 MB in the beginning and 1.2 GB in the end (delta: -222.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:42,341 INFO L168 Benchmark]: Boogie Preprocessor took 51.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:42,341 INFO L168 Benchmark]: RCFGBuilder took 584.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:42,342 INFO L168 Benchmark]: TraceAbstraction took 5528.04 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 137.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.8 MB). Peak memory consumption was 189.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:42,342 INFO L168 Benchmark]: Witness Printer took 3.86 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:42,344 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 541.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 939.1 MB in the beginning and 1.2 GB in the end (delta: -222.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 584.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5528.04 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 137.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.8 MB). Peak memory consumption was 189.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.86 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch3 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 581]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 581. Possible FailurePath: [L517] struct cell *S; [L518] int pc1 = 1; [L519] int pc4 = 1; [L520] static struct cell *t1 = ((void *)0); [L521] static struct cell *x1 = ((void *)0); [L550] struct cell* garbage; [L551] static struct cell *t4 = ((void *)0); [L552] static struct cell *x4 = ((void *)0); [L555] static int res4; VAL [\old(garbage)=18, \old(garbage)=21, \old(pc1)=13, \old(pc4)=22, \old(res4)=14, \old(S)=10, \old(S)=15, \old(t1)=20, \old(t1)=27, \old(t4)=11, \old(t4)=16, \old(x1)=19, \old(x1)=23, \old(x4)=25, \old(x4)=26, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L583] S || 1 != pc4 || __VERIFIER_nondet_int() [L583] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, __VERIFIER_nondet_int()=1, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, S || 1 != pc4 || __VERIFIER_nondet_int()=1, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L583] COND TRUE S || 1 != pc4 || __VERIFIER_nondet_int() [L584] COND TRUE __VERIFIER_nondet_int() [L585] CALL push() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L524] pc1++ [L525] case 1: [L526] x1 = malloc(sizeof(*x1)) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={2:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={2:0}, x4={0:0}] [L527] x1->data = 0 VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={2:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={2:0}, x4={0:0}] [L528] x1->next = ((void *)0) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={2:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={2:0}, x4={0:0}] [L585] RET push() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={2:0}, x4={0:0}] [L583] S || 1 != pc4 || __VERIFIER_nondet_int() [L583] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, __VERIFIER_nondet_int()=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, S || 1 != pc4 || __VERIFIER_nondet_int()=0, t1={0:0}, t4={0:0}, x1={2:0}, x4={0:0}] [L583] COND FALSE !(S || 1 != pc4 || __VERIFIER_nondet_int()) [L589] COND FALSE !(\read(*garbage)) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={2:0}, x4={0:0}] [L594] S = ((void *)0) [L595] t1 = ((void *)0) [L596] x1 = ((void *)0) [L597] t4 = ((void *)0) [L598] x4 = ((void *)0) [L599] return !!garbage; VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, \result=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 89 locations, 20 error locations. Result: UNSAFE, OverallTime: 5.4s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 797 SDtfs, 1018 SDslu, 960 SDs, 0 SdLazy, 1533 SolverSat, 294 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2455occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 373 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 12263 SizeOfPredicates, 8 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 2/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:44,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:44,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:44,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:44,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:44,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:44,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:44,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:44,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:44,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:44,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:44,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:44,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:44,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:44,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:44,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:44,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:44,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:44,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:44,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:44,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:44,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:44,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:44,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:44,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:44,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:44,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:44,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:44,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:44,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:44,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:44,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:44,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:44,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:44,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:44,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:44,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:44,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:44,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:44,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:44,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:44,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-10-22 08:57:44,568 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:44,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:44,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:44,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:44,570 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:44,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:44,570 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:44,570 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:57:44,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:44,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:44,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:44,581 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 08:57:44,581 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 08:57:44,581 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-10-22 08:57:44,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:44,581 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:57:44,581 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:57:44,581 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:44,582 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:44,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:44,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:44,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:44,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:44,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:44,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:44,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:44,583 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:57:44,583 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:57:44,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:57:44,583 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/working_dir_847f257b-200b-493e-9221-546af1296799/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9281afa68f10f88b0abb59461461cab9597c1d50 [2019-10-22 08:57:44,620 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:44,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:44,638 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:44,640 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:44,640 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:44,641 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/../../sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-10-22 08:57:44,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/data/e9717b456/cde8148aa07d4eec9b6c37e90b0d59c7/FLAG88ee6e442 [2019-10-22 08:57:45,153 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:45,154 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-10-22 08:57:45,165 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/data/e9717b456/cde8148aa07d4eec9b6c37e90b0d59c7/FLAG88ee6e442 [2019-10-22 08:57:45,470 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/bin/uautomizer/data/e9717b456/cde8148aa07d4eec9b6c37e90b0d59c7 [2019-10-22 08:57:45,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:45,473 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-10-22 08:57:45,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:45,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:45,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:45,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:45" (1/1) ... [2019-10-22 08:57:45,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1cf3d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:45, skipping insertion in model container [2019-10-22 08:57:45,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:45" (1/1) ... [2019-10-22 08:57:45,489 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:45,523 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:45,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:45,913 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:45,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:46,035 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:46,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:46 WrapperNode [2019-10-22 08:57:46,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:46,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:46,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:46,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:46,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:46" (1/1) ... [2019-10-22 08:57:46,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:46" (1/1) ... [2019-10-22 08:57:46,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:46" (1/1) ... [2019-10-22 08:57:46,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:46" (1/1) ... [2019-10-22 08:57:46,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:46" (1/1) ... [2019-10-22 08:57:46,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:46" (1/1) ... [2019-10-22 08:57:46,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:46" (1/1) ... [2019-10-22 08:57:46,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:46,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:46,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:46,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:46,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/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 [2019-10-22 08:57:46,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-22 08:57:46,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-22 08:57:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-22 08:57:46,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-10-22 08:57:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-10-22 08:57:46,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-10-22 08:57:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2019-10-22 08:57:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2019-10-22 08:57:46,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-22 08:57:46,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-22 08:57:46,171 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-22 08:57:46,171 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-22 08:57:46,171 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-22 08:57:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-22 08:57:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-22 08:57:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-22 08:57:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-22 08:57:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-22 08:57:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-22 08:57:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-22 08:57:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-22 08:57:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-22 08:57:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-22 08:57:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-22 08:57:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-22 08:57:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-22 08:57:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-22 08:57:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-22 08:57:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-10-22 08:57:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-10-22 08:57:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-10-22 08:57:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-22 08:57:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-22 08:57:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-22 08:57:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-22 08:57:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-22 08:57:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-22 08:57:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-22 08:57:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-22 08:57:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-22 08:57:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-22 08:57:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-22 08:57:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-22 08:57:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-22 08:57:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-22 08:57:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-22 08:57:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-22 08:57:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-22 08:57:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-22 08:57:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-22 08:57:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-22 08:57:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-22 08:57:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-22 08:57:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-22 08:57:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-22 08:57:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-22 08:57:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-22 08:57:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-22 08:57:46,179 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-22 08:57:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-22 08:57:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-22 08:57:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-22 08:57:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-22 08:57:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-22 08:57:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-22 08:57:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-22 08:57:46,180 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-22 08:57:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-22 08:57:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-22 08:57:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-22 08:57:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-22 08:57:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-22 08:57:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-22 08:57:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-22 08:57:46,181 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-22 08:57:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-22 08:57:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-22 08:57:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-22 08:57:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-22 08:57:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-22 08:57:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-22 08:57:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-22 08:57:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-22 08:57:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-22 08:57:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-22 08:57:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-22 08:57:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-22 08:57:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-22 08:57:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-22 08:57:46,186 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-22 08:57:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-22 08:57:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-22 08:57:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-22 08:57:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-22 08:57:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-22 08:57:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-22 08:57:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-22 08:57:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-22 08:57:46,187 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-22 08:57:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-22 08:57:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-22 08:57:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-22 08:57:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-22 08:57:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-22 08:57:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-22 08:57:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-22 08:57:46,188 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-22 08:57:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-22 08:57:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-22 08:57:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-22 08:57:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-22 08:57:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-22 08:57:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-22 08:57:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-22 08:57:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-22 08:57:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-22 08:57:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-22 08:57:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-22 08:57:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure push [2019-10-22 08:57:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:57:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:57:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:57:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2019-10-22 08:57:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:57:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:57:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-22 08:57:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-22 08:57:46,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:46,736 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:46,736 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-22 08:57:46,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:46 BoogieIcfgContainer [2019-10-22 08:57:46,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:46,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:46,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:46,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:46,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:45" (1/3) ... [2019-10-22 08:57:46,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c569e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:46, skipping insertion in model container [2019-10-22 08:57:46,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:46" (2/3) ... [2019-10-22 08:57:46,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c569e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:46, skipping insertion in model container [2019-10-22 08:57:46,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:46" (3/3) ... [2019-10-22 08:57:46,746 INFO L109 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2019-10-22 08:57:46,755 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:46,763 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-10-22 08:57:46,774 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-10-22 08:57:46,803 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:46,803 INFO L374 AbstractCegarLoop]: Hoare is false [2019-10-22 08:57:46,803 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:46,803 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:46,803 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:46,803 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:46,804 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:46,804 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:46,822 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2019-10-22 08:57:46,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 08:57:46,834 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:46,835 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:46,837 INFO L410 AbstractCegarLoop]: === Iteration 1 === [popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr4REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION]=== [2019-10-22 08:57:46,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:46,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1085435516, now seen corresponding path program 1 times [2019-10-22 08:57:46,853 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:46,853 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1148169749] [2019-10-22 08:57:46,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_847f257b-200b-493e-9221-546af1296799/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 [2019-10-22 08:57:47,082 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 08:57:47,082 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 08:57:47,087 INFO L168 Benchmark]: Toolchain (without parser) took 1612.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 945.6 MB in the beginning and 1.0 GB in the end (delta: -72.4 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:47,088 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:47,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:47,090 INFO L168 Benchmark]: Boogie Preprocessor took 64.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:47,092 INFO L168 Benchmark]: RCFGBuilder took 637.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:47,095 INFO L168 Benchmark]: TraceAbstraction took 345.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:47,097 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 561.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 637.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 345.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 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...