./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5302a66f3e1b957c89e781f7f052efe6572f798a ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5302a66f3e1b957c89e781f7f052efe6572f798a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:35:02,899 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:35:02,900 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:35:02,908 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:35:02,908 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:35:02,909 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:35:02,909 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:35:02,910 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:35:02,911 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:35:02,912 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:35:02,912 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:35:02,913 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:35:02,913 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:35:02,914 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:35:02,915 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:35:02,915 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:35:02,916 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:35:02,917 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:35:02,918 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:35:02,919 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:35:02,920 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:35:02,921 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:35:02,922 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:35:02,923 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:35:02,923 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:35:02,924 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:35:02,924 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:35:02,925 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:35:02,925 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:35:02,926 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:35:02,926 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:35:02,927 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:35:02,927 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:35:02,927 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:35:02,928 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:35:02,928 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:35:02,928 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 10:35:02,938 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:35:02,938 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:35:02,939 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 10:35:02,939 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 10:35:02,939 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:35:02,939 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:35:02,940 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:35:02,940 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:35:02,940 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 10:35:02,940 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:35:02,940 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 10:35:02,940 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:35:02,940 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 10:35:02,940 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 10:35:02,940 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 10:35:02,940 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 10:35:02,941 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:35:02,941 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:35:02,941 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 10:35:02,941 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:35:02,941 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:35:02,941 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 10:35:02,941 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 10:35:02,941 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 10:35:02,941 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:35:02,942 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 10:35:02,942 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 10:35:02,942 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:35:02,942 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 10:35:02,942 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 10:35:02,942 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5302a66f3e1b957c89e781f7f052efe6572f798a [2018-11-28 10:35:02,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:35:02,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:35:02,977 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:35:02,978 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:35:02,979 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:35:02,979 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-11-28 10:35:03,017 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/data/735c706a2/b18f469ac4544d9fb9dc0ac8e8027141/FLAGf1d10faa3 [2018-11-28 10:35:03,509 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:35:03,509 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-11-28 10:35:03,522 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/data/735c706a2/b18f469ac4544d9fb9dc0ac8e8027141/FLAGf1d10faa3 [2018-11-28 10:35:04,006 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/data/735c706a2/b18f469ac4544d9fb9dc0ac8e8027141 [2018-11-28 10:35:04,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:35:04,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:35:04,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:35:04,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:35:04,013 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:35:04,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:35:04" (1/1) ... [2018-11-28 10:35:04,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251798c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04, skipping insertion in model container [2018-11-28 10:35:04,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:35:04" (1/1) ... [2018-11-28 10:35:04,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:35:04,062 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:35:04,598 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:35:04,607 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:35:04,651 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:35:04,856 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:35:04,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04 WrapperNode [2018-11-28 10:35:04,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:35:04,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:35:04,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:35:04,857 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:35:04,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04" (1/1) ... [2018-11-28 10:35:04,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04" (1/1) ... [2018-11-28 10:35:04,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:35:04,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:35:04,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:35:04,906 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:35:04,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04" (1/1) ... [2018-11-28 10:35:04,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04" (1/1) ... [2018-11-28 10:35:04,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04" (1/1) ... [2018-11-28 10:35:04,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04" (1/1) ... [2018-11-28 10:35:04,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04" (1/1) ... [2018-11-28 10:35:04,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04" (1/1) ... [2018-11-28 10:35:04,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04" (1/1) ... [2018-11-28 10:35:04,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:35:04,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:35:04,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:35:04,941 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:35:04,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 10:35:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 10:35:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 10:35:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 10:35:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-28 10:35:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 10:35:04,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:35:04,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:35:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-11-28 10:35:04,987 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-11-28 10:35:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 10:35:04,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 10:35:04,988 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 10:35:05,429 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:35:05,429 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-11-28 10:35:05,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:35:05 BoogieIcfgContainer [2018-11-28 10:35:05,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:35:05,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 10:35:05,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 10:35:05,433 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 10:35:05,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:35:04" (1/3) ... [2018-11-28 10:35:05,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511f6113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:35:05, skipping insertion in model container [2018-11-28 10:35:05,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:04" (2/3) ... [2018-11-28 10:35:05,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511f6113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:35:05, skipping insertion in model container [2018-11-28 10:35:05,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:35:05" (3/3) ... [2018-11-28 10:35:05,436 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of_false-unreach-call.i [2018-11-28 10:35:05,461 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,461 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,461 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,462 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,462 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,462 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,462 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,462 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,462 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,463 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,463 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,463 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,463 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,463 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,463 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,464 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,464 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,464 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,464 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,464 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,464 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,465 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,465 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,465 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,465 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,465 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,465 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,466 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,466 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,466 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,466 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,466 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,467 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,467 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,467 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,467 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,467 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,467 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,468 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,468 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,468 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,468 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,468 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,468 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,469 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,469 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,469 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,469 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,469 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,469 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,470 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,470 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,470 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,470 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,470 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,470 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,471 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,471 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,471 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,471 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,472 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,472 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,472 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,472 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,472 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,472 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,473 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,473 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,473 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,473 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:05,491 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 10:35:05,491 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 10:35:05,497 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 10:35:05,509 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 10:35:05,527 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:35:05,528 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 10:35:05,528 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 10:35:05,528 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 10:35:05,528 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:35:05,528 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:35:05,528 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 10:35:05,528 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:35:05,528 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 10:35:05,538 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146places, 154 transitions [2018-11-28 10:35:05,940 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12658 states. [2018-11-28 10:35:05,942 INFO L276 IsEmpty]: Start isEmpty. Operand 12658 states. [2018-11-28 10:35:05,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-28 10:35:05,952 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:05,952 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:05,954 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:05,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:05,959 INFO L82 PathProgramCache]: Analyzing trace with hash -124987563, now seen corresponding path program 1 times [2018-11-28 10:35:05,961 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:35:05,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:35:06,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:06,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:06,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:06,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:06,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:06,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 10:35:06,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 10:35:06,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 10:35:06,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 10:35:06,332 INFO L87 Difference]: Start difference. First operand 12658 states. Second operand 6 states. [2018-11-28 10:35:06,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:06,984 INFO L93 Difference]: Finished difference Result 16553 states and 46657 transitions. [2018-11-28 10:35:06,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 10:35:06,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-11-28 10:35:06,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:07,052 INFO L225 Difference]: With dead ends: 16553 [2018-11-28 10:35:07,053 INFO L226 Difference]: Without dead ends: 14482 [2018-11-28 10:35:07,054 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-28 10:35:07,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14482 states. [2018-11-28 10:35:07,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14482 to 11906. [2018-11-28 10:35:07,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11906 states. [2018-11-28 10:35:07,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11906 states to 11906 states and 33521 transitions. [2018-11-28 10:35:07,487 INFO L78 Accepts]: Start accepts. Automaton has 11906 states and 33521 transitions. Word has length 43 [2018-11-28 10:35:07,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:07,487 INFO L480 AbstractCegarLoop]: Abstraction has 11906 states and 33521 transitions. [2018-11-28 10:35:07,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 10:35:07,488 INFO L276 IsEmpty]: Start isEmpty. Operand 11906 states and 33521 transitions. [2018-11-28 10:35:07,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-28 10:35:07,490 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:07,492 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:07,493 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:07,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:07,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1215746383, now seen corresponding path program 1 times [2018-11-28 10:35:07,493 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:35:07,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:35:07,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:07,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:07,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:07,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:07,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 10:35:07,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 10:35:07,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 10:35:07,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 10:35:07,657 INFO L87 Difference]: Start difference. First operand 11906 states and 33521 transitions. Second operand 6 states. [2018-11-28 10:35:08,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:08,295 INFO L93 Difference]: Finished difference Result 17604 states and 49533 transitions. [2018-11-28 10:35:08,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 10:35:08,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-11-28 10:35:08,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:08,342 INFO L225 Difference]: With dead ends: 17604 [2018-11-28 10:35:08,343 INFO L226 Difference]: Without dead ends: 17604 [2018-11-28 10:35:08,343 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-28 10:35:08,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17604 states. [2018-11-28 10:35:08,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17604 to 12744. [2018-11-28 10:35:08,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12744 states. [2018-11-28 10:35:08,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12744 states to 12744 states and 35855 transitions. [2018-11-28 10:35:08,672 INFO L78 Accepts]: Start accepts. Automaton has 12744 states and 35855 transitions. Word has length 43 [2018-11-28 10:35:08,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:08,673 INFO L480 AbstractCegarLoop]: Abstraction has 12744 states and 35855 transitions. [2018-11-28 10:35:08,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 10:35:08,673 INFO L276 IsEmpty]: Start isEmpty. Operand 12744 states and 35855 transitions. [2018-11-28 10:35:08,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-28 10:35:08,676 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:08,676 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:08,676 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:08,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:08,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1032075219, now seen corresponding path program 1 times [2018-11-28 10:35:08,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:35:08,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:35:08,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:08,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:08,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:08,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:08,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 10:35:08,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 10:35:08,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 10:35:08,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-28 10:35:08,882 INFO L87 Difference]: Start difference. First operand 12744 states and 35855 transitions. Second operand 8 states. [2018-11-28 10:35:09,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:09,678 INFO L93 Difference]: Finished difference Result 16000 states and 44665 transitions. [2018-11-28 10:35:09,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 10:35:09,678 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-11-28 10:35:09,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:09,709 INFO L225 Difference]: With dead ends: 16000 [2018-11-28 10:35:09,709 INFO L226 Difference]: Without dead ends: 14206 [2018-11-28 10:35:09,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2018-11-28 10:35:09,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14206 states. [2018-11-28 10:35:09,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14206 to 13884. [2018-11-28 10:35:09,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13884 states. [2018-11-28 10:35:09,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13884 states to 13884 states and 39043 transitions. [2018-11-28 10:35:09,978 INFO L78 Accepts]: Start accepts. Automaton has 13884 states and 39043 transitions. Word has length 49 [2018-11-28 10:35:09,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:09,979 INFO L480 AbstractCegarLoop]: Abstraction has 13884 states and 39043 transitions. [2018-11-28 10:35:09,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 10:35:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand 13884 states and 39043 transitions. [2018-11-28 10:35:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-28 10:35:09,981 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:09,981 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:09,982 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:09,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:09,982 INFO L82 PathProgramCache]: Analyzing trace with hash -542381444, now seen corresponding path program 1 times [2018-11-28 10:35:09,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:35:09,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:35:09,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:09,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:09,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:10,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:10,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:10,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 10:35:10,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 10:35:10,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 10:35:10,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-28 10:35:10,167 INFO L87 Difference]: Start difference. First operand 13884 states and 39043 transitions. Second operand 8 states. [2018-11-28 10:35:10,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:10,776 INFO L93 Difference]: Finished difference Result 22964 states and 64349 transitions. [2018-11-28 10:35:10,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 10:35:10,776 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-11-28 10:35:10,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:10,815 INFO L225 Difference]: With dead ends: 22964 [2018-11-28 10:35:10,816 INFO L226 Difference]: Without dead ends: 22964 [2018-11-28 10:35:10,816 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-11-28 10:35:10,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22964 states. [2018-11-28 10:35:11,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22964 to 16171. [2018-11-28 10:35:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16171 states. [2018-11-28 10:35:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16171 states to 16171 states and 45615 transitions. [2018-11-28 10:35:11,200 INFO L78 Accepts]: Start accepts. Automaton has 16171 states and 45615 transitions. Word has length 49 [2018-11-28 10:35:11,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:11,200 INFO L480 AbstractCegarLoop]: Abstraction has 16171 states and 45615 transitions. [2018-11-28 10:35:11,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 10:35:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 16171 states and 45615 transitions. [2018-11-28 10:35:11,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-28 10:35:11,202 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:11,203 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:11,203 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:11,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:11,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1057507681, now seen corresponding path program 1 times [2018-11-28 10:35:11,203 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:35:11,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:35:11,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:11,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:11,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:35:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:35:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:35:11,260 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.createATESequence(IcfgProgramExecution.java:179) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.create(IcfgProgramExecution.java:110) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.create(IcfgProgramExecution.java:87) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.IcfgProgramExecutionBuilder.computeIcfgProgramExecution(IcfgProgramExecutionBuilder.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.IcfgProgramExecutionBuilder.getIcfgProgramExecution(IcfgProgramExecutionBuilder.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecution(TraceCheck.java:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:344) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-28 10:35:11,263 INFO L168 Benchmark]: Toolchain (without parser) took 7253.90 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 428.3 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 259.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:11,265 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:35:11,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 846.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 949.6 MB in the beginning and 989.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 94.0 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:11,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.53 ms. Allocated memory is still 1.1 GB. Free memory is still 989.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:35:11,271 INFO L168 Benchmark]: Boogie Preprocessor took 34.60 ms. Allocated memory is still 1.1 GB. Free memory was 989.5 MB in the beginning and 984.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:11,271 INFO L168 Benchmark]: RCFGBuilder took 488.52 ms. Allocated memory is still 1.1 GB. Free memory was 984.1 MB in the beginning and 938.1 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:11,272 INFO L168 Benchmark]: TraceAbstraction took 5832.62 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 308.3 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 127.9 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:11,275 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 846.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 949.6 MB in the beginning and 989.5 MB in the end (delta: -39.9 MB). Peak memory consumption was 94.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.53 ms. Allocated memory is still 1.1 GB. Free memory is still 989.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.60 ms. Allocated memory is still 1.1 GB. Free memory was 989.5 MB in the beginning and 984.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 488.52 ms. Allocated memory is still 1.1 GB. Free memory was 984.1 MB in the beginning and 938.1 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5832.62 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 308.3 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 127.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.createATESequence(IcfgProgramExecution.java:179) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:35:12,740 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:35:12,741 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:35:12,750 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:35:12,750 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:35:12,751 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:35:12,752 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:35:12,753 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:35:12,754 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:35:12,754 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:35:12,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:35:12,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:35:12,756 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:35:12,757 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:35:12,758 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:35:12,758 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:35:12,759 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:35:12,760 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:35:12,762 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:35:12,763 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:35:12,764 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:35:12,765 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:35:12,767 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:35:12,767 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:35:12,767 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:35:12,768 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:35:12,769 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:35:12,769 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:35:12,770 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:35:12,770 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:35:12,771 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:35:12,771 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:35:12,771 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:35:12,771 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:35:12,772 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:35:12,773 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:35:12,773 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 10:35:12,784 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:35:12,784 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:35:12,785 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 10:35:12,785 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 10:35:12,785 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:35:12,786 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:35:12,786 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:35:12,786 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:35:12,786 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 10:35:12,786 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 10:35:12,786 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:35:12,787 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 10:35:12,787 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 10:35:12,787 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 10:35:12,787 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 10:35:12,787 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 10:35:12,787 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 10:35:12,787 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:35:12,787 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:35:12,788 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 10:35:12,788 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:35:12,788 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:35:12,788 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 10:35:12,788 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 10:35:12,788 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 10:35:12,788 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:35:12,789 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 10:35:12,791 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 10:35:12,791 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 10:35:12,791 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 10:35:12,791 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 10:35:12,791 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 10:35:12,791 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5302a66f3e1b957c89e781f7f052efe6572f798a [2018-11-28 10:35:12,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:35:12,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:35:12,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:35:12,829 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:35:12,829 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:35:12,830 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-11-28 10:35:12,874 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/data/6cc91e336/ab26e25666f24e709c121325be000138/FLAGee2b9a9c2 [2018-11-28 10:35:13,348 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:35:13,349 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-11-28 10:35:13,362 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/data/6cc91e336/ab26e25666f24e709c121325be000138/FLAGee2b9a9c2 [2018-11-28 10:35:13,374 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/data/6cc91e336/ab26e25666f24e709c121325be000138 [2018-11-28 10:35:13,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:35:13,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:35:13,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:35:13,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:35:13,381 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:35:13,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:35:13" (1/1) ... [2018-11-28 10:35:13,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3170e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:13, skipping insertion in model container [2018-11-28 10:35:13,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:35:13" (1/1) ... [2018-11-28 10:35:13,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:35:13,434 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:35:13,927 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:35:13,936 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:35:14,044 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:35:14,250 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:35:14,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14 WrapperNode [2018-11-28 10:35:14,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:35:14,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:35:14,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:35:14,251 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:35:14,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14" (1/1) ... [2018-11-28 10:35:14,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14" (1/1) ... [2018-11-28 10:35:14,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:35:14,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:35:14,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:35:14,296 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:35:14,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14" (1/1) ... [2018-11-28 10:35:14,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14" (1/1) ... [2018-11-28 10:35:14,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14" (1/1) ... [2018-11-28 10:35:14,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14" (1/1) ... [2018-11-28 10:35:14,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14" (1/1) ... [2018-11-28 10:35:14,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14" (1/1) ... [2018-11-28 10:35:14,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14" (1/1) ... [2018-11-28 10:35:14,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:35:14,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:35:14,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:35:14,336 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:35:14,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 10:35:14,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 10:35:14,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-11-28 10:35:14,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 10:35:14,378 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-28 10:35:14,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 10:35:14,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:35:14,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:35:14,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 10:35:14,379 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-11-28 10:35:14,379 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-11-28 10:35:14,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 10:35:14,381 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 10:35:14,928 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:35:14,929 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-11-28 10:35:14,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:35:14 BoogieIcfgContainer [2018-11-28 10:35:14,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:35:14,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 10:35:14,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 10:35:14,932 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 10:35:14,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:35:13" (1/3) ... [2018-11-28 10:35:14,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a4d1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:35:14, skipping insertion in model container [2018-11-28 10:35:14,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:35:14" (2/3) ... [2018-11-28 10:35:14,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a4d1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:35:14, skipping insertion in model container [2018-11-28 10:35:14,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:35:14" (3/3) ... [2018-11-28 10:35:14,935 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of_false-unreach-call.i [2018-11-28 10:35:14,960 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,961 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,961 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,961 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,961 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,962 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,962 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,962 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,962 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,962 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,962 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,963 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,963 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,963 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,963 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,963 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,963 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,963 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,964 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,964 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,964 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,964 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,964 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,965 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,968 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,968 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,968 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,969 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,969 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,969 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,969 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,969 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,969 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,970 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,970 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,970 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,970 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,970 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,971 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,971 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,971 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,971 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,971 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,971 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,972 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,972 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,972 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,972 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,972 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,972 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,973 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,973 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,973 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,973 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,973 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,973 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,973 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,974 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,974 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,974 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,974 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,975 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,975 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,975 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,975 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,975 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,975 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,976 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,976 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:14,976 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 10:35:15,000 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 10:35:15,001 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 10:35:15,006 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 10:35:15,016 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 10:35:15,032 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:35:15,032 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 10:35:15,032 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 10:35:15,032 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 10:35:15,032 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:35:15,033 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:35:15,033 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 10:35:15,033 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:35:15,033 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 10:35:15,042 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 143places, 151 transitions [2018-11-28 10:35:15,339 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12430 states. [2018-11-28 10:35:15,341 INFO L276 IsEmpty]: Start isEmpty. Operand 12430 states. [2018-11-28 10:35:15,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-28 10:35:15,349 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:15,349 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:15,351 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:15,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:15,355 INFO L82 PathProgramCache]: Analyzing trace with hash 2056417981, now seen corresponding path program 1 times [2018-11-28 10:35:15,359 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 10:35:15,359 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 10:35:15,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:15,656 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:35:15,712 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 10:35:15,716 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 10:35:15,716 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:35:15,722 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:15,732 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:15,732 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-28 10:35:15,756 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-11-28 10:35:15,762 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 10:35:15,763 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2018-11-28 10:35:15,764 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:35:15,775 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:15,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:15,789 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-11-28 10:35:15,849 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2018-11-28 10:35:15,854 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 5 [2018-11-28 10:35:15,854 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:35:15,857 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:15,860 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:15,861 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:5 [2018-11-28 10:35:15,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:15,904 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 10:35:15,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:15,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 10:35:15,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 10:35:15,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 10:35:15,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-28 10:35:15,923 INFO L87 Difference]: Start difference. First operand 12430 states. Second operand 8 states. [2018-11-28 10:35:17,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:17,579 INFO L93 Difference]: Finished difference Result 16325 states and 46009 transitions. [2018-11-28 10:35:17,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 10:35:17,581 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2018-11-28 10:35:17,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:17,638 INFO L225 Difference]: With dead ends: 16325 [2018-11-28 10:35:17,638 INFO L226 Difference]: Without dead ends: 14254 [2018-11-28 10:35:17,640 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2018-11-28 10:35:17,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14254 states. [2018-11-28 10:35:17,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14254 to 11678. [2018-11-28 10:35:17,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11678 states. [2018-11-28 10:35:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11678 states to 11678 states and 32873 transitions. [2018-11-28 10:35:17,963 INFO L78 Accepts]: Start accepts. Automaton has 11678 states and 32873 transitions. Word has length 40 [2018-11-28 10:35:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:17,963 INFO L480 AbstractCegarLoop]: Abstraction has 11678 states and 32873 transitions. [2018-11-28 10:35:17,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 10:35:17,964 INFO L276 IsEmpty]: Start isEmpty. Operand 11678 states and 32873 transitions. [2018-11-28 10:35:17,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-28 10:35:17,966 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:17,966 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:17,966 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:17,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:17,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1377584212, now seen corresponding path program 1 times [2018-11-28 10:35:17,967 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 10:35:17,968 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 10:35:18,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:18,274 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:35:18,310 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 10:35:18,313 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 10:35:18,313 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:35:18,316 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:18,323 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:18,323 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-28 10:35:18,348 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-11-28 10:35:18,356 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 10:35:18,357 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 29 [2018-11-28 10:35:18,358 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:35:18,366 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:18,377 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:18,377 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-11-28 10:35:18,405 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-11-28 10:35:18,415 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 3 [2018-11-28 10:35:18,415 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:35:18,418 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:18,420 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:18,421 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:3 [2018-11-28 10:35:18,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:18,464 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 10:35:18,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:18,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 10:35:18,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 10:35:18,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 10:35:18,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-28 10:35:18,469 INFO L87 Difference]: Start difference. First operand 11678 states and 32873 transitions. Second operand 10 states. [2018-11-28 10:35:20,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:20,401 INFO L93 Difference]: Finished difference Result 17215 states and 48432 transitions. [2018-11-28 10:35:20,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-28 10:35:20,402 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2018-11-28 10:35:20,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:20,445 INFO L225 Difference]: With dead ends: 17215 [2018-11-28 10:35:20,446 INFO L226 Difference]: Without dead ends: 17215 [2018-11-28 10:35:20,446 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2018-11-28 10:35:20,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17215 states. [2018-11-28 10:35:20,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17215 to 12516. [2018-11-28 10:35:20,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12516 states. [2018-11-28 10:35:20,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12516 states to 12516 states and 35207 transitions. [2018-11-28 10:35:20,716 INFO L78 Accepts]: Start accepts. Automaton has 12516 states and 35207 transitions. Word has length 41 [2018-11-28 10:35:20,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:20,716 INFO L480 AbstractCegarLoop]: Abstraction has 12516 states and 35207 transitions. [2018-11-28 10:35:20,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 10:35:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 12516 states and 35207 transitions. [2018-11-28 10:35:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 10:35:20,719 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:20,719 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:20,719 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:20,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:20,720 INFO L82 PathProgramCache]: Analyzing trace with hash -891356043, now seen corresponding path program 1 times [2018-11-28 10:35:20,720 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 10:35:20,720 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 10:35:20,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:20,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:35:20,910 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 10:35:20,913 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 10:35:20,913 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:35:20,916 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:20,919 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:20,919 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-28 10:35:20,929 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-28 10:35:20,932 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 5 [2018-11-28 10:35:20,933 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:35:20,935 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:20,937 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:20,938 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-11-28 10:35:20,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:20,965 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 10:35:20,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:20,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 10:35:20,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 10:35:20,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 10:35:20,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 10:35:20,968 INFO L87 Difference]: Start difference. First operand 12516 states and 35207 transitions. Second operand 6 states. [2018-11-28 10:35:21,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:21,711 INFO L93 Difference]: Finished difference Result 15767 states and 44012 transitions. [2018-11-28 10:35:21,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 10:35:21,711 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-11-28 10:35:21,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:21,749 INFO L225 Difference]: With dead ends: 15767 [2018-11-28 10:35:21,749 INFO L226 Difference]: Without dead ends: 13979 [2018-11-28 10:35:21,750 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-28 10:35:21,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13979 states. [2018-11-28 10:35:21,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13979 to 13657. [2018-11-28 10:35:21,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13657 states. [2018-11-28 10:35:21,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13657 states to 13657 states and 38396 transitions. [2018-11-28 10:35:21,991 INFO L78 Accepts]: Start accepts. Automaton has 13657 states and 38396 transitions. Word has length 46 [2018-11-28 10:35:21,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:21,991 INFO L480 AbstractCegarLoop]: Abstraction has 13657 states and 38396 transitions. [2018-11-28 10:35:21,991 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 10:35:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 13657 states and 38396 transitions. [2018-11-28 10:35:21,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-28 10:35:21,994 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:21,994 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:21,994 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:21,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:21,994 INFO L82 PathProgramCache]: Analyzing trace with hash -345150056, now seen corresponding path program 1 times [2018-11-28 10:35:21,995 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 10:35:21,995 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 10:35:22,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:35:22,247 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:35:22,257 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-28 10:35:22,260 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-28 10:35:22,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:35:22,264 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:22,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:22,268 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-28 10:35:22,279 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-28 10:35:22,284 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-28 10:35:22,285 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 10:35:22,288 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:22,290 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 10:35:22,290 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-11-28 10:35:22,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:35:22,328 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 10:35:22,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:35:22,330 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 10:35:22,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 10:35:22,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 10:35:22,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 10:35:22,331 INFO L87 Difference]: Start difference. First operand 13657 states and 38396 transitions. Second operand 6 states. [2018-11-28 10:35:23,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:35:23,121 INFO L93 Difference]: Finished difference Result 22939 states and 64256 transitions. [2018-11-28 10:35:23,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 10:35:23,121 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-11-28 10:35:23,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:35:23,147 INFO L225 Difference]: With dead ends: 22939 [2018-11-28 10:35:23,148 INFO L226 Difference]: Without dead ends: 22939 [2018-11-28 10:35:23,148 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2018-11-28 10:35:23,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22939 states. [2018-11-28 10:35:23,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22939 to 15944. [2018-11-28 10:35:23,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15944 states. [2018-11-28 10:35:23,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15944 states to 15944 states and 44968 transitions. [2018-11-28 10:35:23,415 INFO L78 Accepts]: Start accepts. Automaton has 15944 states and 44968 transitions. Word has length 47 [2018-11-28 10:35:23,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:35:23,415 INFO L480 AbstractCegarLoop]: Abstraction has 15944 states and 44968 transitions. [2018-11-28 10:35:23,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 10:35:23,415 INFO L276 IsEmpty]: Start isEmpty. Operand 15944 states and 44968 transitions. [2018-11-28 10:35:23,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-28 10:35:23,419 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:35:23,419 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:35:23,419 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:35:23,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:35:23,419 INFO L82 PathProgramCache]: Analyzing trace with hash 171676906, now seen corresponding path program 1 times [2018-11-28 10:35:23,420 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 10:35:23,420 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_544cd7ff-2b06-45df-bdbb-cc089deec5fe/bin-2019/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 10:35:23,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:35:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:35:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:35:24,192 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 10:35:24,192 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.createATESequence(IcfgProgramExecution.java:179) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.create(IcfgProgramExecution.java:110) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.create(IcfgProgramExecution.java:87) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.IcfgProgramExecutionBuilder.computeIcfgProgramExecution(IcfgProgramExecutionBuilder.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.IcfgProgramExecutionBuilder.getIcfgProgramExecution(IcfgProgramExecutionBuilder.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecution(TraceCheck.java:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:344) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-28 10:35:24,195 INFO L168 Benchmark]: Toolchain (without parser) took 10817.74 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 334.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -131.1 MB). Peak memory consumption was 202.9 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:24,196 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:35:24,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 871.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -62.7 MB). Peak memory consumption was 94.6 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:24,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.89 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. [2018-11-28 10:35:24,197 INFO L168 Benchmark]: Boogie Preprocessor took 39.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:24,197 INFO L168 Benchmark]: RCFGBuilder took 593.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 949.7 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:24,197 INFO L168 Benchmark]: TraceAbstraction took 9264.22 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 191.9 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -126.1 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. [2018-11-28 10:35:24,199 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 871.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -62.7 MB). Peak memory consumption was 94.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.89 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. * Boogie Preprocessor took 39.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 593.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 949.7 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9264.22 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 191.9 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -126.1 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.createATESequence(IcfgProgramExecution.java:179) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...