./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_4-container_of_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/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 dae69c3a5994f0236815dc66269f749edc55ae48 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_4-container_of_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/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 dae69c3a5994f0236815dc66269f749edc55ae48 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 05:57:47,436 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:57:47,437 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:57:47,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:57:47,444 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:57:47,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:57:47,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:57:47,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:57:47,448 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:57:47,449 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:57:47,450 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:57:47,450 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:57:47,450 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:57:47,451 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:57:47,452 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:57:47,452 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:57:47,453 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:57:47,454 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:57:47,456 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:57:47,457 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:57:47,457 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:57:47,458 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:57:47,460 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:57:47,460 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:57:47,460 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:57:47,461 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:57:47,462 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:57:47,462 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:57:47,463 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:57:47,463 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:57:47,464 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:57:47,464 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:57:47,464 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:57:47,464 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:57:47,465 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:57:47,466 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:57:47,466 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 05:57:47,476 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:57:47,476 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:57:47,476 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:57:47,477 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:57:47,477 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 05:57:47,477 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 05:57:47,477 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 05:57:47,478 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:57:47,478 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:57:47,478 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:57:47,478 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:57:47,478 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:57:47,478 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:57:47,478 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:57:47,479 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:57:47,479 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:57:47,479 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:57:47,479 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:57:47,479 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:57:47,479 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:57:47,479 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:57:47,480 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:57:47,480 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:57:47,480 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:57:47,480 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:57:47,480 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:57:47,480 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:57:47,480 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 05:57:47,481 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:57:47,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 05:57:47,481 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/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 -> dae69c3a5994f0236815dc66269f749edc55ae48 [2018-11-23 05:57:47,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:57:47,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:57:47,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:57:47,516 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:57:47,516 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:57:47,517 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2018-11-23 05:57:47,556 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/data/8743174ab/2e8fbd3b63374b8c866745d0ce5b4a6a/FLAG022a0362a [2018-11-23 05:57:48,045 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:57:48,045 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/sv-benchmarks/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2018-11-23 05:57:48,058 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/data/8743174ab/2e8fbd3b63374b8c866745d0ce5b4a6a/FLAG022a0362a [2018-11-23 05:57:48,537 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/data/8743174ab/2e8fbd3b63374b8c866745d0ce5b4a6a [2018-11-23 05:57:48,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:57:48,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:57:48,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:57:48,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:57:48,543 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:57:48,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:57:48" (1/1) ... [2018-11-23 05:57:48,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e1fb88e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:48, skipping insertion in model container [2018-11-23 05:57:48,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:57:48" (1/1) ... [2018-11-23 05:57:48,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:57:48,588 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:57:49,073 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:57:49,080 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:57:49,189 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:57:49,365 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:57:49,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49 WrapperNode [2018-11-23 05:57:49,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:57:49,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:57:49,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:57:49,366 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:57:49,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49" (1/1) ... [2018-11-23 05:57:49,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49" (1/1) ... [2018-11-23 05:57:49,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:57:49,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:57:49,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:57:49,406 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:57:49,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49" (1/1) ... [2018-11-23 05:57:49,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49" (1/1) ... [2018-11-23 05:57:49,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49" (1/1) ... [2018-11-23 05:57:49,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49" (1/1) ... [2018-11-23 05:57:49,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49" (1/1) ... [2018-11-23 05:57:49,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49" (1/1) ... [2018-11-23 05:57:49,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49" (1/1) ... [2018-11-23 05:57:49,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:57:49,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:57:49,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:57:49,440 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:57:49,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/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 [2018-11-23 05:57:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 05:57:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 05:57:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 05:57:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-23 05:57:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 05:57:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:57:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:57:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-11-23 05:57:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-11-23 05:57:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 05:57:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 05:57:49,482 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 05:57:49,920 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:57:49,920 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-11-23 05:57:49,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:57:49 BoogieIcfgContainer [2018-11-23 05:57:49,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:57:49,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:57:49,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:57:49,924 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:57:49,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:57:48" (1/3) ... [2018-11-23 05:57:49,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3871456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:57:49, skipping insertion in model container [2018-11-23 05:57:49,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:49" (2/3) ... [2018-11-23 05:57:49,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3871456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:57:49, skipping insertion in model container [2018-11-23 05:57:49,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:57:49" (3/3) ... [2018-11-23 05:57:49,927 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of_false-unreach-call.i [2018-11-23 05:57:49,949 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,949 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,949 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,949 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,949 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,949 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,950 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,950 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,950 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,950 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,950 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,950 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,950 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,951 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,951 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,951 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,951 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,951 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,951 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,951 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,952 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,952 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,952 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,952 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,952 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,952 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,952 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,953 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,953 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,953 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,953 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,954 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,954 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,954 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,954 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,954 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,955 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,955 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,955 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,955 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,955 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,955 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,955 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,956 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,956 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,956 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,956 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,956 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,956 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,956 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,957 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,957 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,957 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,957 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,957 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,957 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,958 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,958 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,958 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,958 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,958 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,958 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,959 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,959 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,959 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,959 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,959 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,959 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,960 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,960 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:49,986 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 05:57:49,986 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:57:49,992 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-23 05:57:50,002 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-23 05:57:50,019 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 05:57:50,019 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:57:50,019 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:57:50,019 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:57:50,019 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:57:50,020 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:57:50,020 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:57:50,020 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:57:50,020 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:57:50,029 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146places, 154 transitions [2018-11-23 05:57:50,334 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12676 states. [2018-11-23 05:57:50,336 INFO L276 IsEmpty]: Start isEmpty. Operand 12676 states. [2018-11-23 05:57:50,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 05:57:50,347 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:57:50,348 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] [2018-11-23 05:57:50,350 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:57:50,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:57:50,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1462003864, now seen corresponding path program 1 times [2018-11-23 05:57:50,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:57:50,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:57:50,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:50,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:57:50,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:50,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:57:50,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:57:50,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:57:50,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 05:57:50,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 05:57:50,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 05:57:50,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:57:50,693 INFO L87 Difference]: Start difference. First operand 12676 states. Second operand 6 states. [2018-11-23 05:57:51,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:57:51,347 INFO L93 Difference]: Finished difference Result 16571 states and 46675 transitions. [2018-11-23 05:57:51,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 05:57:51,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-11-23 05:57:51,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:57:51,416 INFO L225 Difference]: With dead ends: 16571 [2018-11-23 05:57:51,416 INFO L226 Difference]: Without dead ends: 14503 [2018-11-23 05:57:51,417 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 [2018-11-23 05:57:51,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14503 states. [2018-11-23 05:57:51,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14503 to 11927. [2018-11-23 05:57:51,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11927 states. [2018-11-23 05:57:51,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11927 states to 11927 states and 33542 transitions. [2018-11-23 05:57:51,805 INFO L78 Accepts]: Start accepts. Automaton has 11927 states and 33542 transitions. Word has length 43 [2018-11-23 05:57:51,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:57:51,806 INFO L480 AbstractCegarLoop]: Abstraction has 11927 states and 33542 transitions. [2018-11-23 05:57:51,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 05:57:51,806 INFO L276 IsEmpty]: Start isEmpty. Operand 11927 states and 33542 transitions. [2018-11-23 05:57:51,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 05:57:51,809 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:57:51,810 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] [2018-11-23 05:57:51,811 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:57:51,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:57:51,811 INFO L82 PathProgramCache]: Analyzing trace with hash -674595693, now seen corresponding path program 1 times [2018-11-23 05:57:51,811 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:57:51,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:57:51,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:51,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:57:51,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:57:51,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:57:51,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:57:51,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 05:57:51,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:57:51,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:57:51,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:57:51,903 INFO L87 Difference]: Start difference. First operand 11927 states and 33542 transitions. Second operand 5 states. [2018-11-23 05:57:52,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:57:52,073 INFO L93 Difference]: Finished difference Result 11921 states and 33535 transitions. [2018-11-23 05:57:52,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 05:57:52,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-11-23 05:57:52,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:57:52,103 INFO L225 Difference]: With dead ends: 11921 [2018-11-23 05:57:52,104 INFO L226 Difference]: Without dead ends: 11921 [2018-11-23 05:57:52,104 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 05:57:52,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2018-11-23 05:57:52,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 11906. [2018-11-23 05:57:52,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11906 states. [2018-11-23 05:57:52,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11906 states to 11906 states and 33521 transitions. [2018-11-23 05:57:52,361 INFO L78 Accepts]: Start accepts. Automaton has 11906 states and 33521 transitions. Word has length 47 [2018-11-23 05:57:52,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:57:52,361 INFO L480 AbstractCegarLoop]: Abstraction has 11906 states and 33521 transitions. [2018-11-23 05:57:52,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:57:52,361 INFO L276 IsEmpty]: Start isEmpty. Operand 11906 states and 33521 transitions. [2018-11-23 05:57:52,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-23 05:57:52,364 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:57:52,364 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] [2018-11-23 05:57:52,365 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:57:52,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:57:52,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1682576984, now seen corresponding path program 1 times [2018-11-23 05:57:52,365 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:57:52,365 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:57:52,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:52,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:57:52,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:57:52,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:57:52,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:57:52,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 05:57:52,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 05:57:52,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 05:57:52,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-23 05:57:52,566 INFO L87 Difference]: Start difference. First operand 11906 states and 33521 transitions. Second operand 8 states. [2018-11-23 05:57:53,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:57:53,259 INFO L93 Difference]: Finished difference Result 15162 states and 42331 transitions. [2018-11-23 05:57:53,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 05:57:53,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-11-23 05:57:53,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:57:53,281 INFO L225 Difference]: With dead ends: 15162 [2018-11-23 05:57:53,281 INFO L226 Difference]: Without dead ends: 13368 [2018-11-23 05:57:53,281 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2018-11-23 05:57:53,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13368 states. [2018-11-23 05:57:53,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13368 to 13046. [2018-11-23 05:57:53,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13046 states. [2018-11-23 05:57:53,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13046 states to 13046 states and 36709 transitions. [2018-11-23 05:57:53,459 INFO L78 Accepts]: Start accepts. Automaton has 13046 states and 36709 transitions. Word has length 49 [2018-11-23 05:57:53,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:57:53,459 INFO L480 AbstractCegarLoop]: Abstraction has 13046 states and 36709 transitions. [2018-11-23 05:57:53,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 05:57:53,459 INFO L276 IsEmpty]: Start isEmpty. Operand 13046 states and 36709 transitions. [2018-11-23 05:57:53,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-23 05:57:53,463 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:57:53,463 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, 1, 1] [2018-11-23 05:57:53,463 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:57:53,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:57:53,464 INFO L82 PathProgramCache]: Analyzing trace with hash 772654246, now seen corresponding path program 1 times [2018-11-23 05:57:53,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:57:53,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:57:53,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:53,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:57:53,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:57:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:57:53,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:57:53,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 05:57:53,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 05:57:53,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 05:57:53,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:57:53,568 INFO L87 Difference]: Start difference. First operand 13046 states and 36709 transitions. Second operand 6 states. [2018-11-23 05:57:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:57:53,931 INFO L93 Difference]: Finished difference Result 16973 states and 47577 transitions. [2018-11-23 05:57:53,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 05:57:53,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2018-11-23 05:57:53,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:57:53,952 INFO L225 Difference]: With dead ends: 16973 [2018-11-23 05:57:53,952 INFO L226 Difference]: Without dead ends: 16973 [2018-11-23 05:57:53,952 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-23 05:57:54,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16973 states. [2018-11-23 05:57:54,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16973 to 13884. [2018-11-23 05:57:54,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13884 states. [2018-11-23 05:57:54,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13884 states to 13884 states and 39043 transitions. [2018-11-23 05:57:54,174 INFO L78 Accepts]: Start accepts. Automaton has 13884 states and 39043 transitions. Word has length 53 [2018-11-23 05:57:54,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:57:54,175 INFO L480 AbstractCegarLoop]: Abstraction has 13884 states and 39043 transitions. [2018-11-23 05:57:54,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 05:57:54,176 INFO L276 IsEmpty]: Start isEmpty. Operand 13884 states and 39043 transitions. [2018-11-23 05:57:54,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-23 05:57:54,185 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:57:54,185 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, 1, 1, 1, 1, 1, 1] [2018-11-23 05:57:54,185 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:57:54,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:57:54,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1132716599, now seen corresponding path program 1 times [2018-11-23 05:57:54,186 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:57:54,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:57:54,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:54,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:57:54,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:57:54,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:57:54,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:57:54,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 05:57:54,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:57:54,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:57:54,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:57:54,269 INFO L87 Difference]: Start difference. First operand 13884 states and 39043 transitions. Second operand 5 states. [2018-11-23 05:57:54,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:57:54,338 INFO L93 Difference]: Finished difference Result 8059 states and 22533 transitions. [2018-11-23 05:57:54,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 05:57:54,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2018-11-23 05:57:54,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:57:54,350 INFO L225 Difference]: With dead ends: 8059 [2018-11-23 05:57:54,350 INFO L226 Difference]: Without dead ends: 8059 [2018-11-23 05:57:54,350 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 05:57:54,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8059 states. [2018-11-23 05:57:54,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8059 to 8059. [2018-11-23 05:57:54,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8059 states. [2018-11-23 05:57:54,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8059 states to 8059 states and 22533 transitions. [2018-11-23 05:57:54,488 INFO L78 Accepts]: Start accepts. Automaton has 8059 states and 22533 transitions. Word has length 57 [2018-11-23 05:57:54,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:57:54,489 INFO L480 AbstractCegarLoop]: Abstraction has 8059 states and 22533 transitions. [2018-11-23 05:57:54,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:57:54,489 INFO L276 IsEmpty]: Start isEmpty. Operand 8059 states and 22533 transitions. [2018-11-23 05:57:54,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-23 05:57:54,493 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:57:54,493 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:57:54,493 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:57:54,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:57:54,494 INFO L82 PathProgramCache]: Analyzing trace with hash -524066288, now seen corresponding path program 1 times [2018-11-23 05:57:54,494 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:57:54,494 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:57:54,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:54,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:57:54,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:57:54,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:57:54,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:57:54,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 05:57:54,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 05:57:54,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 05:57:54,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-23 05:57:54,648 INFO L87 Difference]: Start difference. First operand 8059 states and 22533 transitions. Second operand 8 states. [2018-11-23 05:57:55,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:57:55,255 INFO L93 Difference]: Finished difference Result 12465 states and 34445 transitions. [2018-11-23 05:57:55,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 05:57:55,256 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2018-11-23 05:57:55,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:57:55,266 INFO L225 Difference]: With dead ends: 12465 [2018-11-23 05:57:55,266 INFO L226 Difference]: Without dead ends: 12465 [2018-11-23 05:57:55,266 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 [2018-11-23 05:57:55,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12465 states. [2018-11-23 05:57:55,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12465 to 10346. [2018-11-23 05:57:55,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10346 states. [2018-11-23 05:57:55,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10346 states to 10346 states and 29105 transitions. [2018-11-23 05:57:55,387 INFO L78 Accepts]: Start accepts. Automaton has 10346 states and 29105 transitions. Word has length 59 [2018-11-23 05:57:55,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:57:55,387 INFO L480 AbstractCegarLoop]: Abstraction has 10346 states and 29105 transitions. [2018-11-23 05:57:55,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 05:57:55,387 INFO L276 IsEmpty]: Start isEmpty. Operand 10346 states and 29105 transitions. [2018-11-23 05:57:55,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-23 05:57:55,394 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:57:55,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:57:55,395 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:57:55,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:57:55,395 INFO L82 PathProgramCache]: Analyzing trace with hash -2100637634, now seen corresponding path program 1 times [2018-11-23 05:57:55,395 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:57:55,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:57:55,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:55,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:57:55,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:57:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:57:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:57:55,454 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) [2018-11-23 05:57:55,457 INFO L168 Benchmark]: Toolchain (without parser) took 6917.08 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 327.7 MB). Free memory was 956.5 MB in the beginning and 921.0 MB in the end (delta: 35.4 MB). Peak memory consumption was 363.1 MB. Max. memory is 11.5 GB. [2018-11-23 05:57:55,458 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:57:55,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 825.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 953.8 MB in the beginning and 1.0 GB in the end (delta: -70.2 MB). Peak memory consumption was 87.1 MB. Max. memory is 11.5 GB. [2018-11-23 05:57:55,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.20 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:57:55,459 INFO L168 Benchmark]: Boogie Preprocessor took 34.36 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:57:55,460 INFO L168 Benchmark]: RCFGBuilder took 480.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 968.0 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 11.5 GB. [2018-11-23 05:57:55,460 INFO L168 Benchmark]: TraceAbstraction took 5534.68 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.6 MB). Free memory was 968.0 MB in the beginning and 921.0 MB in the end (delta: 47.0 MB). Peak memory consumption was 232.6 MB. Max. memory is 11.5 GB. [2018-11-23 05:57:55,463 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 825.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 953.8 MB in the beginning and 1.0 GB in the end (delta: -70.2 MB). Peak memory consumption was 87.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.20 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.36 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 480.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 968.0 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5534.68 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 185.6 MB). Free memory was 968.0 MB in the beginning and 921.0 MB in the end (delta: 47.0 MB). Peak memory consumption was 232.6 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-aa41828 [2018-11-23 05:57:56,939 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:57:56,940 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:57:56,949 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:57:56,949 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:57:56,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:57:56,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:57:56,952 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:57:56,953 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:57:56,954 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:57:56,954 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:57:56,954 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:57:56,955 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:57:56,956 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:57:56,956 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:57:56,957 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:57:56,958 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:57:56,959 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:57:56,961 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:57:56,962 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:57:56,963 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:57:56,963 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:57:56,965 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:57:56,969 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:57:56,969 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:57:56,970 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:57:56,971 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:57:56,971 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:57:56,972 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:57:56,972 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:57:56,973 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:57:56,973 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:57:56,974 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:57:56,974 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:57:56,975 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:57:56,975 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:57:56,976 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 05:57:56,986 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:57:56,986 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:57:56,986 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:57:56,987 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:57:56,987 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 05:57:56,987 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 05:57:56,987 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 05:57:56,988 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:57:56,988 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:57:56,988 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:57:56,988 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:57:56,988 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:57:56,988 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:57:56,988 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:57:56,988 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 05:57:56,989 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 05:57:56,989 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:57:56,989 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:57:56,989 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:57:56,989 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:57:56,991 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:57:56,991 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:57:56,991 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:57:56,991 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:57:56,991 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:57:56,992 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:57:56,992 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:57:56,992 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:57:56,992 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 05:57:56,992 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:57:56,992 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 05:57:56,992 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 05:57:56,993 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_8c6ec355-4342-4262-a68f-901f0b4653b6/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 -> dae69c3a5994f0236815dc66269f749edc55ae48 [2018-11-23 05:57:57,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:57:57,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:57:57,034 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:57:57,036 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:57:57,036 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:57:57,036 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2018-11-23 05:57:57,077 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/data/70bbad55e/a843bd4e61c548a092059cc7c851714b/FLAG456b2ac08 [2018-11-23 05:57:57,561 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:57:57,562 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/sv-benchmarks/c/ldv-races/race-2_4-container_of_false-unreach-call.i [2018-11-23 05:57:57,574 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/data/70bbad55e/a843bd4e61c548a092059cc7c851714b/FLAG456b2ac08 [2018-11-23 05:57:58,055 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/data/70bbad55e/a843bd4e61c548a092059cc7c851714b [2018-11-23 05:57:58,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:57:58,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:57:58,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:57:58,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:57:58,061 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:57:58,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:57:58" (1/1) ... [2018-11-23 05:57:58,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e66d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58, skipping insertion in model container [2018-11-23 05:57:58,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:57:58" (1/1) ... [2018-11-23 05:57:58,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:57:58,110 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:57:58,653 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:57:58,663 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:57:58,760 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:57:58,917 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:57:58,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58 WrapperNode [2018-11-23 05:57:58,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:57:58,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:57:58,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:57:58,919 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:57:58,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58" (1/1) ... [2018-11-23 05:57:58,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58" (1/1) ... [2018-11-23 05:57:58,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:57:58,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:57:58,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:57:58,968 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:57:58,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58" (1/1) ... [2018-11-23 05:57:58,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58" (1/1) ... [2018-11-23 05:57:58,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58" (1/1) ... [2018-11-23 05:57:58,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58" (1/1) ... [2018-11-23 05:57:58,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58" (1/1) ... [2018-11-23 05:57:58,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58" (1/1) ... [2018-11-23 05:57:59,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58" (1/1) ... [2018-11-23 05:57:59,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:57:59,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:57:59,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:57:59,007 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:57:59,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/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 [2018-11-23 05:57:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 05:57:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-11-23 05:57:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 05:57:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-23 05:57:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 05:57:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:57:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:57:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 05:57:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-11-23 05:57:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-11-23 05:57:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 05:57:59,047 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 05:57:59,596 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:57:59,596 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-11-23 05:57:59,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:57:59 BoogieIcfgContainer [2018-11-23 05:57:59,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:57:59,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:57:59,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:57:59,599 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:57:59,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:57:58" (1/3) ... [2018-11-23 05:57:59,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f1161d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:57:59, skipping insertion in model container [2018-11-23 05:57:59,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:57:58" (2/3) ... [2018-11-23 05:57:59,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f1161d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:57:59, skipping insertion in model container [2018-11-23 05:57:59,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:57:59" (3/3) ... [2018-11-23 05:57:59,601 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of_false-unreach-call.i [2018-11-23 05:57:59,626 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,627 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,627 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,627 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,627 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,627 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,628 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,628 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,628 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,628 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,628 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,628 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,629 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,629 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,629 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,629 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,629 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,629 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,630 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,630 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,630 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,630 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,630 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,631 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,631 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,631 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,631 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,631 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,631 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,632 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,632 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,632 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,632 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,632 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,633 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,633 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,633 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,633 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,633 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,633 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,634 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,634 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,634 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,634 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,634 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,634 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,634 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,635 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,635 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,635 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,635 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,635 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,636 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,636 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,636 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,636 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,636 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,637 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,637 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,637 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,637 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,637 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,637 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,638 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,638 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,638 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,638 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,638 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,638 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,639 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:57:59,658 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 05:57:59,658 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:57:59,663 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-23 05:57:59,673 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-23 05:57:59,688 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 05:57:59,688 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:57:59,688 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:57:59,689 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:57:59,689 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:57:59,689 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:57:59,689 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:57:59,689 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:57:59,689 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:57:59,698 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 143places, 151 transitions [2018-11-23 05:57:59,998 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12448 states. [2018-11-23 05:57:59,999 INFO L276 IsEmpty]: Start isEmpty. Operand 12448 states. [2018-11-23 05:58:00,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-23 05:58:00,008 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:58:00,009 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] [2018-11-23 05:58:00,011 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:58:00,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:58:00,014 INFO L82 PathProgramCache]: Analyzing trace with hash 712452213, now seen corresponding path program 1 times [2018-11-23 05:58:00,018 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 05:58:00,019 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 05:58:00,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:58:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:58:00,299 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:58:00,363 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 [2018-11-23 05:58:00,370 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 [2018-11-23 05:58:00,370 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 05:58:00,378 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:00,391 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:00,391 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-23 05:58:00,414 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 [2018-11-23 05:58:00,420 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 05:58:00,421 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 [2018-11-23 05:58:00,422 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 05:58:00,432 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:00,496 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:00,496 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-11-23 05:58:00,540 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 [2018-11-23 05:58:00,545 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 [2018-11-23 05:58:00,545 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 05:58:00,549 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:00,558 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:00,558 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:5 [2018-11-23 05:58:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:58:00,628 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 05:58:00,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:58:00,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 05:58:00,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 05:58:00,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 05:58:00,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-23 05:58:00,650 INFO L87 Difference]: Start difference. First operand 12448 states. Second operand 8 states. [2018-11-23 05:58:02,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:58:02,127 INFO L93 Difference]: Finished difference Result 16343 states and 46027 transitions. [2018-11-23 05:58:02,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 05:58:02,128 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2018-11-23 05:58:02,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:58:02,201 INFO L225 Difference]: With dead ends: 16343 [2018-11-23 05:58:02,201 INFO L226 Difference]: Without dead ends: 14275 [2018-11-23 05:58:02,202 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 [2018-11-23 05:58:02,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2018-11-23 05:58:02,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 11699. [2018-11-23 05:58:02,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11699 states. [2018-11-23 05:58:02,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 32894 transitions. [2018-11-23 05:58:02,536 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 32894 transitions. Word has length 40 [2018-11-23 05:58:02,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:58:02,537 INFO L480 AbstractCegarLoop]: Abstraction has 11699 states and 32894 transitions. [2018-11-23 05:58:02,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 05:58:02,537 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 32894 transitions. [2018-11-23 05:58:02,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-23 05:58:02,540 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:58:02,540 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] [2018-11-23 05:58:02,541 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:58:02,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:58:02,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1790706994, now seen corresponding path program 1 times [2018-11-23 05:58:02,542 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 05:58:02,542 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 05:58:02,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:58:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:58:02,635 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:58:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:58:02,665 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 05:58:02,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:58:02,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 05:58:02,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:58:02,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:58:02,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:58:02,669 INFO L87 Difference]: Start difference. First operand 11699 states and 32894 transitions. Second operand 5 states. [2018-11-23 05:58:02,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:58:02,790 INFO L93 Difference]: Finished difference Result 11693 states and 32887 transitions. [2018-11-23 05:58:02,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 05:58:02,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-11-23 05:58:02,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:58:02,817 INFO L225 Difference]: With dead ends: 11693 [2018-11-23 05:58:02,818 INFO L226 Difference]: Without dead ends: 11693 [2018-11-23 05:58:02,819 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 05:58:02,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11693 states. [2018-11-23 05:58:02,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11693 to 11678. [2018-11-23 05:58:02,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11678 states. [2018-11-23 05:58:03,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11678 states to 11678 states and 32873 transitions. [2018-11-23 05:58:03,000 INFO L78 Accepts]: Start accepts. Automaton has 11678 states and 32873 transitions. Word has length 44 [2018-11-23 05:58:03,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:58:03,000 INFO L480 AbstractCegarLoop]: Abstraction has 11678 states and 32873 transitions. [2018-11-23 05:58:03,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:58:03,001 INFO L276 IsEmpty]: Start isEmpty. Operand 11678 states and 32873 transitions. [2018-11-23 05:58:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 05:58:03,003 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:58:03,003 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] [2018-11-23 05:58:03,003 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:58:03,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:58:03,004 INFO L82 PathProgramCache]: Analyzing trace with hash -935718427, now seen corresponding path program 1 times [2018-11-23 05:58:03,004 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 05:58:03,005 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 05:58:03,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:58:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:58:03,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:58:03,183 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 [2018-11-23 05:58:03,190 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 [2018-11-23 05:58:03,190 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 05:58:03,194 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:03,199 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:03,199 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-23 05:58:03,210 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 [2018-11-23 05:58:03,220 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 [2018-11-23 05:58:03,220 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 05:58:03,223 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:03,225 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:03,225 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-11-23 05:58:03,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:58:03,259 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 05:58:03,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:58:03,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 05:58:03,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 05:58:03,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 05:58:03,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:58:03,298 INFO L87 Difference]: Start difference. First operand 11678 states and 32873 transitions. Second operand 6 states. [2018-11-23 05:58:04,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:58:04,110 INFO L93 Difference]: Finished difference Result 14929 states and 41678 transitions. [2018-11-23 05:58:04,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 05:58:04,111 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-11-23 05:58:04,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:58:04,134 INFO L225 Difference]: With dead ends: 14929 [2018-11-23 05:58:04,134 INFO L226 Difference]: Without dead ends: 13141 [2018-11-23 05:58:04,134 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 [2018-11-23 05:58:04,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13141 states. [2018-11-23 05:58:04,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13141 to 12819. [2018-11-23 05:58:04,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12819 states. [2018-11-23 05:58:04,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12819 states to 12819 states and 36062 transitions. [2018-11-23 05:58:04,329 INFO L78 Accepts]: Start accepts. Automaton has 12819 states and 36062 transitions. Word has length 46 [2018-11-23 05:58:04,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:58:04,330 INFO L480 AbstractCegarLoop]: Abstraction has 12819 states and 36062 transitions. [2018-11-23 05:58:04,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 05:58:04,330 INFO L276 IsEmpty]: Start isEmpty. Operand 12819 states and 36062 transitions. [2018-11-23 05:58:04,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-23 05:58:04,335 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:58:04,335 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] [2018-11-23 05:58:04,335 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:58:04,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:58:04,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1539300962, now seen corresponding path program 1 times [2018-11-23 05:58:04,336 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 05:58:04,336 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 05:58:04,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:58:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:58:04,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:58:04,597 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 [2018-11-23 05:58:04,599 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 [2018-11-23 05:58:04,600 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 05:58:04,603 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:04,611 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:04,611 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-23 05:58:04,642 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 [2018-11-23 05:58:04,645 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 05:58:04,646 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 [2018-11-23 05:58:04,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 05:58:04,655 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:04,666 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:04,666 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-11-23 05:58:04,692 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 24 treesize of output 18 [2018-11-23 05:58:04,695 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 18 treesize of output 9 [2018-11-23 05:58:04,696 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 05:58:04,700 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:04,703 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:04,703 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:5 [2018-11-23 05:58:04,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:58:04,743 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 05:58:04,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:58:04,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 05:58:04,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 05:58:04,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 05:58:04,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-23 05:58:04,754 INFO L87 Difference]: Start difference. First operand 12819 states and 36062 transitions. Second operand 10 states. [2018-11-23 05:58:06,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:58:06,144 INFO L93 Difference]: Finished difference Result 16746 states and 46930 transitions. [2018-11-23 05:58:06,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-23 05:58:06,145 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2018-11-23 05:58:06,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:58:06,165 INFO L225 Difference]: With dead ends: 16746 [2018-11-23 05:58:06,165 INFO L226 Difference]: Without dead ends: 16746 [2018-11-23 05:58:06,165 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2018-11-23 05:58:06,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16746 states. [2018-11-23 05:58:06,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16746 to 13657. [2018-11-23 05:58:06,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13657 states. [2018-11-23 05:58:06,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13657 states to 13657 states and 38396 transitions. [2018-11-23 05:58:06,371 INFO L78 Accepts]: Start accepts. Automaton has 13657 states and 38396 transitions. Word has length 50 [2018-11-23 05:58:06,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:58:06,372 INFO L480 AbstractCegarLoop]: Abstraction has 13657 states and 38396 transitions. [2018-11-23 05:58:06,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 05:58:06,372 INFO L276 IsEmpty]: Start isEmpty. Operand 13657 states and 38396 transitions. [2018-11-23 05:58:06,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-23 05:58:06,380 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:58:06,381 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, 1, 1, 1] [2018-11-23 05:58:06,381 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:58:06,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:58:06,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1576432961, now seen corresponding path program 1 times [2018-11-23 05:58:06,382 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 05:58:06,382 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 05:58:06,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:58:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:58:06,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:58:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:58:06,578 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 05:58:06,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:58:06,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 05:58:06,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:58:06,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:58:06,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:58:06,580 INFO L87 Difference]: Start difference. First operand 13657 states and 38396 transitions. Second operand 5 states. [2018-11-23 05:58:06,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:58:06,638 INFO L93 Difference]: Finished difference Result 7832 states and 21886 transitions. [2018-11-23 05:58:06,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 05:58:06,639 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2018-11-23 05:58:06,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:58:06,644 INFO L225 Difference]: With dead ends: 7832 [2018-11-23 05:58:06,645 INFO L226 Difference]: Without dead ends: 7832 [2018-11-23 05:58:06,645 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 05:58:06,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7832 states. [2018-11-23 05:58:06,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7832 to 7832. [2018-11-23 05:58:06,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7832 states. [2018-11-23 05:58:06,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7832 states to 7832 states and 21886 transitions. [2018-11-23 05:58:06,743 INFO L78 Accepts]: Start accepts. Automaton has 7832 states and 21886 transitions. Word has length 54 [2018-11-23 05:58:06,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:58:06,744 INFO L480 AbstractCegarLoop]: Abstraction has 7832 states and 21886 transitions. [2018-11-23 05:58:06,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:58:06,744 INFO L276 IsEmpty]: Start isEmpty. Operand 7832 states and 21886 transitions. [2018-11-23 05:58:06,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-23 05:58:06,747 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:58:06,747 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, 1, 1, 1, 1, 1] [2018-11-23 05:58:06,747 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:58:06,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:58:06,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1530247818, now seen corresponding path program 1 times [2018-11-23 05:58:06,748 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 05:58:06,748 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 05:58:06,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:58:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:58:06,922 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:58:06,932 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 [2018-11-23 05:58:06,935 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 [2018-11-23 05:58:06,936 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 05:58:06,941 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:06,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:06,948 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-23 05:58:06,961 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 [2018-11-23 05:58:06,964 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 [2018-11-23 05:58:06,964 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 05:58:06,967 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:06,970 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 05:58:06,970 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-11-23 05:58:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:58:07,004 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 05:58:07,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:58:07,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 05:58:07,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 05:58:07,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 05:58:07,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:58:07,007 INFO L87 Difference]: Start difference. First operand 7832 states and 21886 transitions. Second operand 6 states. [2018-11-23 05:58:07,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:58:07,740 INFO L93 Difference]: Finished difference Result 12239 states and 33799 transitions. [2018-11-23 05:58:07,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 05:58:07,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-11-23 05:58:07,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:58:07,749 INFO L225 Difference]: With dead ends: 12239 [2018-11-23 05:58:07,749 INFO L226 Difference]: Without dead ends: 12239 [2018-11-23 05:58:07,750 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2018-11-23 05:58:07,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12239 states. [2018-11-23 05:58:07,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12239 to 10119. [2018-11-23 05:58:07,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10119 states. [2018-11-23 05:58:07,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10119 states to 10119 states and 28458 transitions. [2018-11-23 05:58:07,868 INFO L78 Accepts]: Start accepts. Automaton has 10119 states and 28458 transitions. Word has length 56 [2018-11-23 05:58:07,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:58:07,868 INFO L480 AbstractCegarLoop]: Abstraction has 10119 states and 28458 transitions. [2018-11-23 05:58:07,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 05:58:07,868 INFO L276 IsEmpty]: Start isEmpty. Operand 10119 states and 28458 transitions. [2018-11-23 05:58:07,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-23 05:58:07,872 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:58:07,872 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:58:07,872 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:58:07,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:58:07,873 INFO L82 PathProgramCache]: Analyzing trace with hash 2073069998, now seen corresponding path program 1 times [2018-11-23 05:58:07,873 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 05:58:07,873 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c6ec355-4342-4262-a68f-901f0b4653b6/bin-2019/uautomizer/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 05:58:07,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:58:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:58:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:58:08,696 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 05:58:08,696 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) [2018-11-23 05:58:08,699 INFO L168 Benchmark]: Toolchain (without parser) took 10641.14 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 326.6 MB). Free memory was 943.3 MB in the beginning and 880.3 MB in the end (delta: 62.9 MB). Peak memory consumption was 389.6 MB. Max. memory is 11.5 GB. [2018-11-23 05:58:08,700 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:58:08,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 859.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 943.3 MB in the beginning and 999.7 MB in the end (delta: -56.4 MB). Peak memory consumption was 93.9 MB. Max. memory is 11.5 GB. [2018-11-23 05:58:08,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.62 ms. Allocated memory is still 1.2 GB. Free memory is still 999.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:58:08,701 INFO L168 Benchmark]: Boogie Preprocessor took 38.84 ms. Allocated memory is still 1.2 GB. Free memory was 999.7 MB in the beginning and 993.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:58:08,702 INFO L168 Benchmark]: RCFGBuilder took 589.87 ms. Allocated memory is still 1.2 GB. Free memory was 993.0 MB in the beginning and 941.9 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. [2018-11-23 05:58:08,702 INFO L168 Benchmark]: TraceAbstraction took 9101.89 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 191.9 MB). Free memory was 941.9 MB in the beginning and 880.3 MB in the end (delta: 61.6 MB). Peak memory consumption was 253.5 MB. Max. memory is 11.5 GB. [2018-11-23 05:58:08,704 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 859.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 943.3 MB in the beginning and 999.7 MB in the end (delta: -56.4 MB). Peak memory consumption was 93.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.62 ms. Allocated memory is still 1.2 GB. Free memory is still 999.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.84 ms. Allocated memory is still 1.2 GB. Free memory was 999.7 MB in the beginning and 993.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 589.87 ms. Allocated memory is still 1.2 GB. Free memory was 993.0 MB in the beginning and 941.9 MB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9101.89 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 191.9 MB). Free memory was 941.9 MB in the beginning and 880.3 MB in the end (delta: 61.6 MB). Peak memory consumption was 253.5 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...