./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/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/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/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: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:43:57,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:43:57,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:43:57,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:43:57,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:43:57,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:43:57,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:43:57,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:43:57,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:43:57,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:43:57,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:43:57,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:43:57,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:43:57,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:43:57,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:43:57,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:43:57,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:43:57,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:43:57,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:43:57,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:43:57,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:43:57,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:43:57,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:43:57,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:43:57,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:43:57,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:43:57,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:43:57,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:43:57,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:43:57,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:43:57,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:43:57,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:43:57,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:43:57,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:43:57,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:43:57,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:43:57,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:43:57,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:43:57,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:43:57,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:43:57,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:43:57,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-12-07 11:43:57,884 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:43:57,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:43:57,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:43:57,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:43:57,885 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:43:57,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:43:57,886 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:43:57,886 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:43:57,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:43:57,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:43:57,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:43:57,886 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 11:43:57,886 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 11:43:57,887 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 11:43:57,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:43:57,887 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:43:57,887 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:43:57,887 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:43:57,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:43:57,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:43:57,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:43:57,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:43:57,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:43:57,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:43:57,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:43:57,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:43:57,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:43:57,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:43:57,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/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 [2019-12-07 11:43:57,990 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:43:58,001 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:43:58,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:43:58,005 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:43:58,005 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:43:58,006 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/../../sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-12-07 11:43:58,044 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/data/17f79653d/5ffd965314ee45348d45038ba4d34801/FLAGc2c2e4dfe [2019-12-07 11:43:58,509 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:43:58,510 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-12-07 11:43:58,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/data/17f79653d/5ffd965314ee45348d45038ba4d34801/FLAGc2c2e4dfe [2019-12-07 11:43:59,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/data/17f79653d/5ffd965314ee45348d45038ba4d34801 [2019-12-07 11:43:59,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:43:59,027 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 11:43:59,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:43:59,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:43:59,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:43:59,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:43:59" (1/1) ... [2019-12-07 11:43:59,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@551fb3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:59, skipping insertion in model container [2019-12-07 11:43:59,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:43:59" (1/1) ... [2019-12-07 11:43:59,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:43:59,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:43:59,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:43:59,289 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:43:59,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:43:59,349 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:43:59,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:59 WrapperNode [2019-12-07 11:43:59,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:43:59,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:43:59,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:43:59,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:43:59,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:59" (1/1) ... [2019-12-07 11:43:59,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:59" (1/1) ... [2019-12-07 11:43:59,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:59" (1/1) ... [2019-12-07 11:43:59,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:59" (1/1) ... [2019-12-07 11:43:59,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:59" (1/1) ... [2019-12-07 11:43:59,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:59" (1/1) ... [2019-12-07 11:43:59,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:59" (1/1) ... [2019-12-07 11:43:59,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:43:59,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:43:59,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:43:59,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:43:59,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/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 [2019-12-07 11:43:59,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 11:43:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:43:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 11:43:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 11:43:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 11:43:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 11:43:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 11:43:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2019-12-07 11:43:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2019-12-07 11:43:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 11:43:59,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 11:43:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 11:43:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 11:43:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 11:43:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 11:43:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 11:43:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 11:43:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 11:43:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 11:43:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 11:43:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 11:43:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 11:43:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 11:43:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 11:43:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 11:43:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 11:43:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 11:43:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 11:43:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 11:43:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 11:43:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 11:43:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 11:43:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 11:43:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 11:43:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 11:43:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 11:43:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 11:43:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 11:43:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 11:43:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 11:43:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 11:43:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 11:43:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 11:43:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 11:43:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 11:43:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 11:43:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 11:43:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 11:43:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 11:43:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 11:43:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 11:43:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 11:43:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 11:43:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 11:43:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 11:43:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 11:43:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 11:43:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 11:43:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 11:43:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 11:43:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 11:43:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 11:43:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 11:43:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 11:43:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 11:43:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 11:43:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 11:43:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 11:43:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure push [2019-12-07 11:43:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 11:43:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:43:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 11:43:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2019-12-07 11:43:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 11:43:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:43:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 11:43:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:43:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 11:43:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:43:59,731 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:43:59,731 INFO L287 CfgBuilder]: Removed 2 assume(true) statements. [2019-12-07 11:43:59,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:43:59 BoogieIcfgContainer [2019-12-07 11:43:59,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:43:59,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:43:59,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:43:59,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:43:59,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:43:59" (1/3) ... [2019-12-07 11:43:59,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f44877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:43:59, skipping insertion in model container [2019-12-07 11:43:59,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:43:59" (2/3) ... [2019-12-07 11:43:59,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49f44877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:43:59, skipping insertion in model container [2019-12-07 11:43:59,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:43:59" (3/3) ... [2019-12-07 11:43:59,737 INFO L109 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2019-12-07 11:43:59,743 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:43:59,748 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-12-07 11:43:59,755 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-12-07 11:43:59,767 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:43:59,767 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 11:43:59,767 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:43:59,767 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:43:59,767 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:43:59,768 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:43:59,768 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:43:59,768 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:43:59,779 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-12-07 11:43:59,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 11:43:59,784 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:43:59,785 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:43:59,785 INFO L410 AbstractCegarLoop]: === Iteration 1 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:43:59,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:43:59,789 INFO L82 PathProgramCache]: Analyzing trace with hash 406886108, now seen corresponding path program 1 times [2019-12-07 11:43:59,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:43:59,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245376324] [2019-12-07 11:43:59,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:43:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:43:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:43:59,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:43:59,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245376324] [2019-12-07 11:43:59,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:43:59,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 11:43:59,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703574573] [2019-12-07 11:43:59,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:43:59,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:43:59,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:43:59,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:43:59,969 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2019-12-07 11:44:00,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:00,151 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2019-12-07 11:44:00,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:44:00,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 11:44:00,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:00,160 INFO L225 Difference]: With dead ends: 92 [2019-12-07 11:44:00,161 INFO L226 Difference]: Without dead ends: 89 [2019-12-07 11:44:00,162 INFO L630 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 [2019-12-07 11:44:00,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-12-07 11:44:00,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 71. [2019-12-07 11:44:00,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-12-07 11:44:00,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2019-12-07 11:44:00,192 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 8 [2019-12-07 11:44:00,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:00,192 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2019-12-07 11:44:00,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:44:00,193 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2019-12-07 11:44:00,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 11:44:00,193 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:00,193 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:00,193 INFO L410 AbstractCegarLoop]: === Iteration 2 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:00,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:00,194 INFO L82 PathProgramCache]: Analyzing trace with hash 155309773, now seen corresponding path program 1 times [2019-12-07 11:44:00,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:44:00,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510152556] [2019-12-07 11:44:00,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:44:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:00,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:00,271 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510152556] [2019-12-07 11:44:00,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:00,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 11:44:00,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60231192] [2019-12-07 11:44:00,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:44:00,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:44:00,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:44:00,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:44:00,273 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 4 states. [2019-12-07 11:44:00,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:00,445 INFO L93 Difference]: Finished difference Result 91 states and 114 transitions. [2019-12-07 11:44:00,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:44:00,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 11:44:00,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:00,447 INFO L225 Difference]: With dead ends: 91 [2019-12-07 11:44:00,447 INFO L226 Difference]: Without dead ends: 91 [2019-12-07 11:44:00,448 INFO L630 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 [2019-12-07 11:44:00,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-12-07 11:44:00,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 72. [2019-12-07 11:44:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-12-07 11:44:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2019-12-07 11:44:00,455 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 10 [2019-12-07 11:44:00,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:00,456 INFO L462 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2019-12-07 11:44:00,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:44:00,456 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2019-12-07 11:44:00,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 11:44:00,456 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:00,456 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:00,456 INFO L410 AbstractCegarLoop]: === Iteration 3 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:00,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:00,457 INFO L82 PathProgramCache]: Analyzing trace with hash 155369355, now seen corresponding path program 1 times [2019-12-07 11:44:00,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:44:00,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963738368] [2019-12-07 11:44:00,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:44:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:00,546 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963738368] [2019-12-07 11:44:00,546 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:00,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 11:44:00,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810546332] [2019-12-07 11:44:00,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:44:00,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:44:00,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:44:00,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:44:00,548 INFO L87 Difference]: Start difference. First operand 72 states and 89 transitions. Second operand 4 states. [2019-12-07 11:44:00,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:00,736 INFO L93 Difference]: Finished difference Result 135 states and 176 transitions. [2019-12-07 11:44:00,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:44:00,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 11:44:00,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:00,738 INFO L225 Difference]: With dead ends: 135 [2019-12-07 11:44:00,738 INFO L226 Difference]: Without dead ends: 135 [2019-12-07 11:44:00,738 INFO L630 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 [2019-12-07 11:44:00,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-12-07 11:44:00,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 108. [2019-12-07 11:44:00,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-12-07 11:44:00,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2019-12-07 11:44:00,747 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 153 transitions. Word has length 10 [2019-12-07 11:44:00,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:00,748 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 153 transitions. [2019-12-07 11:44:00,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:44:00,748 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 153 transitions. [2019-12-07 11:44:00,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:44:00,748 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:00,748 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:00,749 INFO L410 AbstractCegarLoop]: === Iteration 4 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:00,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:00,749 INFO L82 PathProgramCache]: Analyzing trace with hash 521481310, now seen corresponding path program 1 times [2019-12-07 11:44:00,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:44:00,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890114238] [2019-12-07 11:44:00,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:44:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:00,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:00,817 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890114238] [2019-12-07 11:44:00,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:00,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 11:44:00,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239821803] [2019-12-07 11:44:00,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:44:00,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:44:00,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:44:00,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:44:00,818 INFO L87 Difference]: Start difference. First operand 108 states and 153 transitions. Second operand 4 states. [2019-12-07 11:44:00,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:00,938 INFO L93 Difference]: Finished difference Result 149 states and 214 transitions. [2019-12-07 11:44:00,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:44:00,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 11:44:00,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:00,940 INFO L225 Difference]: With dead ends: 149 [2019-12-07 11:44:00,940 INFO L226 Difference]: Without dead ends: 144 [2019-12-07 11:44:00,940 INFO L630 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 [2019-12-07 11:44:00,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-12-07 11:44:00,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2019-12-07 11:44:00,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-12-07 11:44:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 183 transitions. [2019-12-07 11:44:00,950 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 183 transitions. Word has length 11 [2019-12-07 11:44:00,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:00,950 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 183 transitions. [2019-12-07 11:44:00,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:44:00,950 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 183 transitions. [2019-12-07 11:44:00,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 11:44:00,950 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:00,950 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:00,951 INFO L410 AbstractCegarLoop]: === Iteration 5 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:00,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:00,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1196811089, now seen corresponding path program 1 times [2019-12-07 11:44:00,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:44:00,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389031123] [2019-12-07 11:44:00,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:44:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:01,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:01,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389031123] [2019-12-07 11:44:01,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:01,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 11:44:01,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154464469] [2019-12-07 11:44:01,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:44:01,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:44:01,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:44:01,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:44:01,003 INFO L87 Difference]: Start difference. First operand 126 states and 183 transitions. Second operand 4 states. [2019-12-07 11:44:01,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:01,228 INFO L93 Difference]: Finished difference Result 220 states and 325 transitions. [2019-12-07 11:44:01,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:44:01,229 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-07 11:44:01,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:01,231 INFO L225 Difference]: With dead ends: 220 [2019-12-07 11:44:01,231 INFO L226 Difference]: Without dead ends: 220 [2019-12-07 11:44:01,231 INFO L630 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 [2019-12-07 11:44:01,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-12-07 11:44:01,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 193. [2019-12-07 11:44:01,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-12-07 11:44:01,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 298 transitions. [2019-12-07 11:44:01,243 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 298 transitions. Word has length 13 [2019-12-07 11:44:01,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:01,243 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 298 transitions. [2019-12-07 11:44:01,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:44:01,243 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 298 transitions. [2019-12-07 11:44:01,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 11:44:01,244 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:01,244 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:01,244 INFO L410 AbstractCegarLoop]: === Iteration 6 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:01,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:01,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1196811090, now seen corresponding path program 1 times [2019-12-07 11:44:01,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:44:01,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500505976] [2019-12-07 11:44:01,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:44:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:01,307 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500505976] [2019-12-07 11:44:01,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:01,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 11:44:01,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116573946] [2019-12-07 11:44:01,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:44:01,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:44:01,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:44:01,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:44:01,308 INFO L87 Difference]: Start difference. First operand 193 states and 298 transitions. Second operand 4 states. [2019-12-07 11:44:01,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:01,529 INFO L93 Difference]: Finished difference Result 271 states and 408 transitions. [2019-12-07 11:44:01,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:44:01,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-07 11:44:01,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:01,531 INFO L225 Difference]: With dead ends: 271 [2019-12-07 11:44:01,531 INFO L226 Difference]: Without dead ends: 271 [2019-12-07 11:44:01,532 INFO L630 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 [2019-12-07 11:44:01,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-12-07 11:44:01,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 247. [2019-12-07 11:44:01,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2019-12-07 11:44:01,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2019-12-07 11:44:01,544 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 13 [2019-12-07 11:44:01,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:01,544 INFO L462 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2019-12-07 11:44:01,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:44:01,544 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2019-12-07 11:44:01,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 11:44:01,545 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:01,545 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:01,545 INFO L410 AbstractCegarLoop]: === Iteration 7 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:01,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:01,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1553554911, now seen corresponding path program 1 times [2019-12-07 11:44:01,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:44:01,546 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778001221] [2019-12-07 11:44:01,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:44:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:01,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:01,617 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778001221] [2019-12-07 11:44:01,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:01,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 11:44:01,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639367223] [2019-12-07 11:44:01,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:44:01,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:44:01,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:44:01,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:44:01,618 INFO L87 Difference]: Start difference. First operand 247 states and 382 transitions. Second operand 6 states. [2019-12-07 11:44:01,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:01,803 INFO L93 Difference]: Finished difference Result 473 states and 709 transitions. [2019-12-07 11:44:01,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 11:44:01,803 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-12-07 11:44:01,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:01,806 INFO L225 Difference]: With dead ends: 473 [2019-12-07 11:44:01,806 INFO L226 Difference]: Without dead ends: 473 [2019-12-07 11:44:01,806 INFO L630 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 [2019-12-07 11:44:01,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-12-07 11:44:01,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 439. [2019-12-07 11:44:01,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2019-12-07 11:44:01,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 675 transitions. [2019-12-07 11:44:01,823 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 675 transitions. Word has length 14 [2019-12-07 11:44:01,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:01,823 INFO L462 AbstractCegarLoop]: Abstraction has 439 states and 675 transitions. [2019-12-07 11:44:01,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:44:01,823 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 675 transitions. [2019-12-07 11:44:01,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 11:44:01,824 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:01,824 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:01,824 INFO L410 AbstractCegarLoop]: === Iteration 8 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:01,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:01,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1849836300, now seen corresponding path program 1 times [2019-12-07 11:44:01,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:44:01,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809367998] [2019-12-07 11:44:01,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:44:01,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:01,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:01,899 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809367998] [2019-12-07 11:44:01,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:01,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 11:44:01,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252701483] [2019-12-07 11:44:01,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:44:01,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:44:01,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:44:01,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:44:01,901 INFO L87 Difference]: Start difference. First operand 439 states and 675 transitions. Second operand 6 states. [2019-12-07 11:44:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:02,071 INFO L93 Difference]: Finished difference Result 825 states and 1195 transitions. [2019-12-07 11:44:02,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 11:44:02,071 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-12-07 11:44:02,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:02,075 INFO L225 Difference]: With dead ends: 825 [2019-12-07 11:44:02,075 INFO L226 Difference]: Without dead ends: 825 [2019-12-07 11:44:02,075 INFO L630 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 [2019-12-07 11:44:02,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2019-12-07 11:44:02,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 787. [2019-12-07 11:44:02,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-12-07 11:44:02,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1155 transitions. [2019-12-07 11:44:02,096 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1155 transitions. Word has length 15 [2019-12-07 11:44:02,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:02,096 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1155 transitions. [2019-12-07 11:44:02,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:44:02,096 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1155 transitions. [2019-12-07 11:44:02,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 11:44:02,097 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:02,097 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:02,097 INFO L410 AbstractCegarLoop]: === Iteration 9 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:02,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:02,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1460861468, now seen corresponding path program 1 times [2019-12-07 11:44:02,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:44:02,098 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921798255] [2019-12-07 11:44:02,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:44:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:02,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:02,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921798255] [2019-12-07 11:44:02,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846066308] [2019-12-07 11:44:02,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/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 [2019-12-07 11:44:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:02,296 INFO L264 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 16 conjunts are in the unsatisfiable core [2019-12-07 11:44:02,300 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:44:02,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:44:02,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:02,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 11:44:02,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2019-12-07 11:44:02,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841046872] [2019-12-07 11:44:02,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 11:44:02,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:44:02,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 11:44:02,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-12-07 11:44:02,359 INFO L87 Difference]: Start difference. First operand 787 states and 1155 transitions. Second operand 12 states. [2019-12-07 11:44:03,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:03,293 INFO L93 Difference]: Finished difference Result 2623 states and 3920 transitions. [2019-12-07 11:44:03,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-12-07 11:44:03,294 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2019-12-07 11:44:03,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:03,309 INFO L225 Difference]: With dead ends: 2623 [2019-12-07 11:44:03,309 INFO L226 Difference]: Without dead ends: 2623 [2019-12-07 11:44:03,310 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=541, Unknown=0, NotChecked=0, Total=756 [2019-12-07 11:44:03,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2019-12-07 11:44:03,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2455. [2019-12-07 11:44:03,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2455 states. [2019-12-07 11:44:03,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 3589 transitions. [2019-12-07 11:44:03,404 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 3589 transitions. Word has length 22 [2019-12-07 11:44:03,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:03,404 INFO L462 AbstractCegarLoop]: Abstraction has 2455 states and 3589 transitions. [2019-12-07 11:44:03,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 11:44:03,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 3589 transitions. [2019-12-07 11:44:03,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 11:44:03,406 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:03,406 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:03,606 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:44:03,607 INFO L410 AbstractCegarLoop]: === Iteration 10 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:03,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:03,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1813037474, now seen corresponding path program 1 times [2019-12-07 11:44:03,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:44:03,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520143186] [2019-12-07 11:44:03,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:44:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:44:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:44:03,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:44:03,656 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:44:03,674 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 11:44:03,682 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 [2019-12-07 11:44:03,683 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 [2019-12-07 11:44:03,684 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 [2019-12-07 11:44:03,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:44:03 BoogieIcfgContainer [2019-12-07 11:44:03,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:44:03,693 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:44:03,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:44:03,693 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:44:03,694 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:43:59" (3/4) ... [2019-12-07 11:44:03,696 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:44:03,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:44:03,698 INFO L168 Benchmark]: Toolchain (without parser) took 4669.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -99.6 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:44:03,698 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:44:03,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:44:03,699 INFO L168 Benchmark]: Boogie Preprocessor took 41.98 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:44:03,699 INFO L168 Benchmark]: RCFGBuilder took 340.74 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:44:03,700 INFO L168 Benchmark]: TraceAbstraction took 3959.54 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 60.8 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -12.3 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. [2019-12-07 11:44:03,700 INFO L168 Benchmark]: Witness Printer took 3.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:44:03,702 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 321.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.8 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.98 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 340.74 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3959.54 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 60.8 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -12.3 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.29 ms. Allocated memory is still 1.2 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)=15, \old(S)=10, \old(t1)=20, \old(t1)=27, \old(t4)=16, \old(t4)=11, \old(x1)=23, \old(x1)=19, \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))={-1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, 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))={-1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, 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))={-1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, 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={-1:0}, 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={-1:0}, 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={-1:0}, 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: 3.8s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 797 SDtfs, 1018 SDslu, 960 SDs, 0 SdLazy, 1533 SolverSat, 294 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.0s 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 373 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 12263 SizeOfPredicates, 8 NumberOfNonLiveVariables, 294 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 0.1.25-f470102 [2019-12-07 11:44:05,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:44:05,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:44:05,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:44:05,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:44:05,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:44:05,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:44:05,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:44:05,043 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:44:05,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:44:05,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:44:05,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:44:05,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:44:05,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:44:05,046 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:44:05,047 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:44:05,048 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:44:05,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:44:05,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:44:05,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:44:05,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:44:05,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:44:05,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:44:05,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:44:05,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:44:05,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:44:05,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:44:05,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:44:05,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:44:05,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:44:05,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:44:05,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:44:05,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:44:05,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:44:05,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:44:05,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:44:05,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:44:05,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:44:05,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:44:05,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:44:05,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:44:05,063 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-12-07 11:44:05,072 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:44:05,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:44:05,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:44:05,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:44:05,074 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:44:05,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:44:05,074 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:44:05,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 11:44:05,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:44:05,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:44:05,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:44:05,074 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 11:44:05,075 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 11:44:05,075 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 11:44:05,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:44:05,075 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:44:05,075 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:44:05,075 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:44:05,075 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:44:05,075 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:44:05,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:44:05,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:44:05,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:44:05,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:44:05,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:44:05,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:44:05,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:44:05,077 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 11:44:05,077 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:44:05,077 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:44:05,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:44:05,077 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/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 [2019-12-07 11:44:05,255 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:44:05,263 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:44:05,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:44:05,266 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:44:05,267 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:44:05,267 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/../../sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-12-07 11:44:05,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/data/461a0ac31/5529a46f8b964dc78e6c1593c27e7203/FLAG827a13bd0 [2019-12-07 11:44:05,644 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:44:05,645 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/sv-benchmarks/c/memsafety/lockfree-3.2.i [2019-12-07 11:44:05,654 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/data/461a0ac31/5529a46f8b964dc78e6c1593c27e7203/FLAG827a13bd0 [2019-12-07 11:44:05,663 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/data/461a0ac31/5529a46f8b964dc78e6c1593c27e7203 [2019-12-07 11:44:05,664 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:44:05,665 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-07 11:44:05,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:44:05,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:44:05,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:44:05,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:44:05" (1/1) ... [2019-12-07 11:44:05,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ee44331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:44:05, skipping insertion in model container [2019-12-07 11:44:05,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:44:05" (1/1) ... [2019-12-07 11:44:05,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:44:05,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:44:05,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:44:05,908 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:44:05,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:44:05,971 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:44:05,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:44:05 WrapperNode [2019-12-07 11:44:05,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:44:05,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:44:05,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:44:05,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:44:05,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:44:05" (1/1) ... [2019-12-07 11:44:05,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:44:05" (1/1) ... [2019-12-07 11:44:05,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:44:05" (1/1) ... [2019-12-07 11:44:05,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:44:05" (1/1) ... [2019-12-07 11:44:06,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:44:05" (1/1) ... [2019-12-07 11:44:06,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:44:05" (1/1) ... [2019-12-07 11:44:06,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:44:05" (1/1) ... [2019-12-07 11:44:06,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:44:06,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:44:06,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:44:06,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:44:06,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:44:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/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 [2019-12-07 11:44:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-12-07 11:44:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:44:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 11:44:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-12-07 11:44:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-12-07 11:44:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-12-07 11:44:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-12-07 11:44:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-12-07 11:44:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2019-12-07 11:44:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2019-12-07 11:44:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-12-07 11:44:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-12-07 11:44:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-12-07 11:44:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-12-07 11:44:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-12-07 11:44:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-12-07 11:44:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-12-07 11:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-12-07 11:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-12-07 11:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-12-07 11:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-12-07 11:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-12-07 11:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-12-07 11:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-12-07 11:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-12-07 11:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-12-07 11:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-12-07 11:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-12-07 11:44:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-12-07 11:44:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-12-07 11:44:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-12-07 11:44:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-12-07 11:44:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-12-07 11:44:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-12-07 11:44:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-12-07 11:44:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-12-07 11:44:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-12-07 11:44:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-12-07 11:44:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-12-07 11:44:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-12-07 11:44:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-12-07 11:44:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-12-07 11:44:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-12-07 11:44:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-12-07 11:44:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-12-07 11:44:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-12-07 11:44:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-12-07 11:44:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-12-07 11:44:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-12-07 11:44:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-12-07 11:44:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-12-07 11:44:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-12-07 11:44:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-12-07 11:44:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-12-07 11:44:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-12-07 11:44:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-12-07 11:44:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-12-07 11:44:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-12-07 11:44:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-12-07 11:44:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-12-07 11:44:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure push [2019-12-07 11:44:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 11:44:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 11:44:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-07 11:44:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2019-12-07 11:44:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-07 11:44:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 11:44:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-12-07 11:44:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:44:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-12-07 11:44:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:44:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-12-07 11:44:06,443 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:44:06,444 INFO L287 CfgBuilder]: Removed 2 assume(true) statements. [2019-12-07 11:44:06,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:44:06 BoogieIcfgContainer [2019-12-07 11:44:06,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:44:06,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:44:06,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:44:06,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:44:06,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:44:05" (1/3) ... [2019-12-07 11:44:06,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4322a9e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:44:06, skipping insertion in model container [2019-12-07 11:44:06,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:44:05" (2/3) ... [2019-12-07 11:44:06,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4322a9e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:44:06, skipping insertion in model container [2019-12-07 11:44:06,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:44:06" (3/3) ... [2019-12-07 11:44:06,449 INFO L109 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2019-12-07 11:44:06,455 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:44:06,459 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2019-12-07 11:44:06,467 INFO L249 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2019-12-07 11:44:06,480 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:44:06,480 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 11:44:06,480 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:44:06,480 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:44:06,480 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:44:06,480 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:44:06,480 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:44:06,480 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:44:06,490 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2019-12-07 11:44:06,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 11:44:06,496 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:06,496 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:06,497 INFO L410 AbstractCegarLoop]: === Iteration 1 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:06,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:06,500 INFO L82 PathProgramCache]: Analyzing trace with hash -526373776, now seen corresponding path program 1 times [2019-12-07 11:44:06,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:44:06,508 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [882912896] [2019-12-07 11:44:06,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 11:44:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:06,640 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 11:44:06,644 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:44:06,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:06,679 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:44:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:06,707 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [882912896] [2019-12-07 11:44:06,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:06,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 11:44:06,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244573322] [2019-12-07 11:44:06,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:44:06,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:44:06,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:44:06,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:44:06,722 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 3 states. [2019-12-07 11:44:06,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:06,785 INFO L93 Difference]: Finished difference Result 123 states and 156 transitions. [2019-12-07 11:44:06,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:44:06,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-07 11:44:06,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:06,795 INFO L225 Difference]: With dead ends: 123 [2019-12-07 11:44:06,795 INFO L226 Difference]: Without dead ends: 120 [2019-12-07 11:44:06,796 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:44:06,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-12-07 11:44:06,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 102. [2019-12-07 11:44:06,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-12-07 11:44:06,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2019-12-07 11:44:06,831 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 8 [2019-12-07 11:44:06,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:06,831 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2019-12-07 11:44:06,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:44:06,832 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2019-12-07 11:44:06,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 11:44:06,832 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:06,832 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:07,033 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:44:07,033 INFO L410 AbstractCegarLoop]: === Iteration 2 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:07,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:07,033 INFO L82 PathProgramCache]: Analyzing trace with hash 862280744, now seen corresponding path program 1 times [2019-12-07 11:44:07,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:44:07,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522070868] [2019-12-07 11:44:07,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 11:44:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:07,129 INFO L264 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 11:44:07,130 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:44:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:07,135 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:44:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:07,140 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522070868] [2019-12-07 11:44:07,140 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:07,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:44:07,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329320645] [2019-12-07 11:44:07,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:44:07,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:44:07,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:44:07,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:44:07,143 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand 3 states. [2019-12-07 11:44:07,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:07,235 INFO L93 Difference]: Finished difference Result 128 states and 182 transitions. [2019-12-07 11:44:07,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:44:07,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-07 11:44:07,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:07,237 INFO L225 Difference]: With dead ends: 128 [2019-12-07 11:44:07,237 INFO L226 Difference]: Without dead ends: 125 [2019-12-07 11:44:07,237 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:44:07,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-12-07 11:44:07,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 115. [2019-12-07 11:44:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-12-07 11:44:07,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-12-07 11:44:07,250 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 9 [2019-12-07 11:44:07,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:07,250 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-12-07 11:44:07,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:44:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-12-07 11:44:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:44:07,251 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:07,251 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:07,451 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:44:07,452 INFO L410 AbstractCegarLoop]: === Iteration 3 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:07,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:07,452 INFO L82 PathProgramCache]: Analyzing trace with hash -232399835, now seen corresponding path program 1 times [2019-12-07 11:44:07,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:44:07,453 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212043285] [2019-12-07 11:44:07,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 11:44:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:07,617 INFO L264 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 11:44:07,618 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:44:07,648 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-12-07 11:44:07,648 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:44:07,654 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:44:07,654 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:44:07,655 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-12-07 11:44:07,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:07,663 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:44:07,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:07,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212043285] [2019-12-07 11:44:07,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:07,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 11:44:07,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511705868] [2019-12-07 11:44:07,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:44:07,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:44:07,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:44:07,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:44:07,712 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 4 states. [2019-12-07 11:44:08,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:08,024 INFO L93 Difference]: Finished difference Result 275 states and 397 transitions. [2019-12-07 11:44:08,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:44:08,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 11:44:08,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:08,028 INFO L225 Difference]: With dead ends: 275 [2019-12-07 11:44:08,028 INFO L226 Difference]: Without dead ends: 275 [2019-12-07 11:44:08,028 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:44:08,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2019-12-07 11:44:08,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 233. [2019-12-07 11:44:08,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-12-07 11:44:08,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 370 transitions. [2019-12-07 11:44:08,047 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 370 transitions. Word has length 11 [2019-12-07 11:44:08,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:08,047 INFO L462 AbstractCegarLoop]: Abstraction has 233 states and 370 transitions. [2019-12-07 11:44:08,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:44:08,047 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 370 transitions. [2019-12-07 11:44:08,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:44:08,048 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:08,048 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:08,248 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:44:08,249 INFO L410 AbstractCegarLoop]: === Iteration 4 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:08,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:08,249 INFO L82 PathProgramCache]: Analyzing trace with hash -232399836, now seen corresponding path program 1 times [2019-12-07 11:44:08,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:44:08,250 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223554489] [2019-12-07 11:44:08,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 11:44:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:08,374 INFO L264 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:44:08,375 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:44:08,380 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-12-07 11:44:08,380 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:44:08,382 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:44:08,382 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:44:08,382 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-12-07 11:44:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:08,385 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:44:08,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:08,390 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223554489] [2019-12-07 11:44:08,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:08,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:44:08,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230338870] [2019-12-07 11:44:08,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:44:08,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:44:08,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:44:08,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:44:08,392 INFO L87 Difference]: Start difference. First operand 233 states and 370 transitions. Second operand 3 states. [2019-12-07 11:44:08,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:08,488 INFO L93 Difference]: Finished difference Result 316 states and 486 transitions. [2019-12-07 11:44:08,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:44:08,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-07 11:44:08,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:08,491 INFO L225 Difference]: With dead ends: 316 [2019-12-07 11:44:08,491 INFO L226 Difference]: Without dead ends: 316 [2019-12-07 11:44:08,491 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:44:08,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2019-12-07 11:44:08,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 295. [2019-12-07 11:44:08,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2019-12-07 11:44:08,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 472 transitions. [2019-12-07 11:44:08,505 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 472 transitions. Word has length 11 [2019-12-07 11:44:08,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:08,506 INFO L462 AbstractCegarLoop]: Abstraction has 295 states and 472 transitions. [2019-12-07 11:44:08,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:44:08,506 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 472 transitions. [2019-12-07 11:44:08,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 11:44:08,506 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:08,506 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:08,707 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:44:08,708 INFO L410 AbstractCegarLoop]: === Iteration 5 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:08,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:08,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1385546692, now seen corresponding path program 1 times [2019-12-07 11:44:08,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:44:08,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192817195] [2019-12-07 11:44:08,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 11:44:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:08,823 INFO L264 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 11:44:08,825 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:44:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:08,836 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:44:08,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:44:08,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:08,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192817195] [2019-12-07 11:44:08,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:08,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 11:44:08,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471047421] [2019-12-07 11:44:08,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:44:08,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:44:08,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:44:08,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:44:08,851 INFO L87 Difference]: Start difference. First operand 295 states and 472 transitions. Second operand 4 states. [2019-12-07 11:44:08,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:08,876 INFO L93 Difference]: Finished difference Result 212 states and 298 transitions. [2019-12-07 11:44:08,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:44:08,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-07 11:44:08,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:08,877 INFO L225 Difference]: With dead ends: 212 [2019-12-07 11:44:08,878 INFO L226 Difference]: Without dead ends: 212 [2019-12-07 11:44:08,878 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:44:08,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2019-12-07 11:44:08,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 181. [2019-12-07 11:44:08,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-12-07 11:44:08,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 271 transitions. [2019-12-07 11:44:08,886 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 271 transitions. Word has length 12 [2019-12-07 11:44:08,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:08,887 INFO L462 AbstractCegarLoop]: Abstraction has 181 states and 271 transitions. [2019-12-07 11:44:08,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:44:08,887 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 271 transitions. [2019-12-07 11:44:08,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 11:44:08,887 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:08,887 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:09,088 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 11:44:09,089 INFO L410 AbstractCegarLoop]: === Iteration 6 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:09,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:09,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1527294497, now seen corresponding path program 1 times [2019-12-07 11:44:09,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:44:09,091 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034148351] [2019-12-07 11:44:09,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 11:44:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:44:09,217 INFO L264 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 11:44:09,218 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:44:09,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:09,226 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:44:09,227 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:44:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:44:09,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034148351] [2019-12-07 11:44:09,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:44:09,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 11:44:09,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095389887] [2019-12-07 11:44:09,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:44:09,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:44:09,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:44:09,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:44:09,236 INFO L87 Difference]: Start difference. First operand 181 states and 271 transitions. Second operand 4 states. [2019-12-07 11:44:09,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:44:09,264 INFO L93 Difference]: Finished difference Result 281 states and 404 transitions. [2019-12-07 11:44:09,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:44:09,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-07 11:44:09,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:44:09,266 INFO L225 Difference]: With dead ends: 281 [2019-12-07 11:44:09,266 INFO L226 Difference]: Without dead ends: 281 [2019-12-07 11:44:09,266 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:44:09,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-12-07 11:44:09,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2019-12-07 11:44:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2019-12-07 11:44:09,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 404 transitions. [2019-12-07 11:44:09,275 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 404 transitions. Word has length 13 [2019-12-07 11:44:09,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:44:09,275 INFO L462 AbstractCegarLoop]: Abstraction has 281 states and 404 transitions. [2019-12-07 11:44:09,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:44:09,275 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 404 transitions. [2019-12-07 11:44:09,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 11:44:09,276 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:44:09,276 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:44:09,476 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 11:44:09,477 INFO L410 AbstractCegarLoop]: === Iteration 7 === [popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2019-12-07 11:44:09,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:44:09,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1430811419, now seen corresponding path program 1 times [2019-12-07 11:44:09,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:44:09,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127213358] [2019-12-07 11:44:09,478 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ad7239f-669b-4034-95e7-b24835e02794/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 11:44:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:44:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:44:09,702 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 11:44:09,702 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:44:09,902 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 11:44:09,934 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-12-07 11:44:09,942 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 16bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,943 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 13bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,943 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 3bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,943 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 15bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,943 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 9bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,944 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,944 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 19bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,944 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,944 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,945 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 18bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,945 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 20bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,945 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 12bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,947 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,948 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,948 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,948 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,948 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,949 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,949 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,949 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,950 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,950 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,950 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,950 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,952 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,952 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,953 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,953 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 [2019-12-07 11:44:09,953 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,954 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,954 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,955 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,955 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,955 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,956 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,956 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,956 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,959 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,959 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,959 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,960 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 [2019-12-07 11:44:09,960 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,960 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,960 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,961 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,961 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,961 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,962 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,962 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,963 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,963 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,963 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,963 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 [2019-12-07 11:44:09,964 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,964 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,964 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,964 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,965 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,965 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,965 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,966 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,966 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,966 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,967 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,967 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,967 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,967 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,967 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,968 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,968 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,968 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,968 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,969 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,969 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,969 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,970 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,970 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,970 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,970 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,971 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,971 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,971 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,971 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,972 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,972 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,972 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,973 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,973 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,973 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,973 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,974 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,974 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,974 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,974 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,975 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,975 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2019-12-07 11:44:09,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:44:09 BoogieIcfgContainer [2019-12-07 11:44:09,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:44:09,986 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:44:09,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:44:09,986 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:44:09,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:44:06" (3/4) ... [2019-12-07 11:44:09,991 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:44:09,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:44:09,993 INFO L168 Benchmark]: Toolchain (without parser) took 4326.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -130.8 MB). Peak memory consumption was 88.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:44:09,993 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:44:09,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:44:09,995 INFO L168 Benchmark]: Boogie Preprocessor took 45.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:44:09,996 INFO L168 Benchmark]: RCFGBuilder took 426.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.6 MB). Peak memory consumption was 66.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:44:09,996 INFO L168 Benchmark]: TraceAbstraction took 3540.30 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -28.8 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:44:09,997 INFO L168 Benchmark]: Witness Printer took 5.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:44:10,001 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 426.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.6 MB). Peak memory consumption was 66.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3540.30 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -28.8 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 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: BitvecLiteral 16bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 13bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 3bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 15bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 9bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 6bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 19bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 5bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 10bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 18bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 20bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 12bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - 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: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - 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: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - 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: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell * 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)=null, \old(garbage)=null, \old(pc1)=17, \old(pc4)=14, \old(res4)=21, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, 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] COND TRUE S || 1 != pc4 || __VERIFIER_nondet_int() [L584] COND TRUE __VERIFIER_nondet_int() [L585] CALL push() VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, 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)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L527] x1->data = 0 VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L528] x1->next = ((void *)0) VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L585] RET push() VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L583] COND FALSE !(S || 1 != pc4 || __VERIFIER_nondet_int()) [L589] COND FALSE !(\read(*garbage)) VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, 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)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, \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 11 procedures, 93 locations, 20 error locations. Result: UNSAFE, OverallTime: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 633 SDtfs, 462 SDslu, 552 SDs, 0 SdLazy, 198 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=295occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 122 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 2688 SizeOfPredicates, 15 NumberOfNonLiveVariables, 800 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 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...