./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5302a66f3e1b957c89e781f7f052efe6572f798a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5302a66f3e1b957c89e781f7f052efe6572f798a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:22:16,678 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:22:16,679 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:22:16,685 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:22:16,686 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:22:16,686 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:22:16,687 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:22:16,688 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:22:16,690 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:22:16,690 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:22:16,691 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:22:16,691 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:22:16,692 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:22:16,692 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:22:16,693 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:22:16,693 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:22:16,693 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:22:16,695 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:22:16,696 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:22:16,696 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:22:16,697 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:22:16,698 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:22:16,699 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:22:16,699 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:22:16,700 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:22:16,700 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:22:16,701 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:22:16,701 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:22:16,701 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:22:16,702 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:22:16,702 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:22:16,702 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:22:16,703 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:22:16,703 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:22:16,703 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:22:16,704 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:22:16,704 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 03:22:16,713 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:22:16,714 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:22:16,714 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:22:16,714 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:22:16,715 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:22:16,715 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:22:16,715 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:22:16,715 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:22:16,715 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:22:16,715 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:22:16,716 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:22:16,716 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:22:16,716 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:22:16,716 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:22:16,716 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:22:16,716 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:22:16,716 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:22:16,717 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:22:16,717 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:22:16,717 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:22:16,717 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:22:16,717 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:22:16,717 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:22:16,717 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:22:16,717 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:22:16,718 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:22:16,718 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:22:16,718 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 03:22:16,718 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:22:16,718 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:22:16,718 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_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5302a66f3e1b957c89e781f7f052efe6572f798a [2018-11-23 03:22:16,744 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:22:16,753 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:22:16,755 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:22:16,756 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:22:16,757 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:22:16,757 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-11-23 03:22:16,795 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/data/998a1f1db/d0d8bc0697114705bd96bf9662c87030/FLAGf627a1800 [2018-11-23 03:22:17,274 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:22:17,274 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-11-23 03:22:17,289 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/data/998a1f1db/d0d8bc0697114705bd96bf9662c87030/FLAGf627a1800 [2018-11-23 03:22:17,302 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/data/998a1f1db/d0d8bc0697114705bd96bf9662c87030 [2018-11-23 03:22:17,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:22:17,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:22:17,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:22:17,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:22:17,309 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:22:17,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:17" (1/1) ... [2018-11-23 03:22:17,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75230f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:17, skipping insertion in model container [2018-11-23 03:22:17,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:17" (1/1) ... [2018-11-23 03:22:17,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:22:17,364 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:22:17,907 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:22:17,915 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:22:18,046 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:22:18,221 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:22:18,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18 WrapperNode [2018-11-23 03:22:18,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:22:18,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:22:18,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:22:18,223 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:22:18,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18" (1/1) ... [2018-11-23 03:22:18,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18" (1/1) ... [2018-11-23 03:22:18,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:22:18,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:22:18,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:22:18,274 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:22:18,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18" (1/1) ... [2018-11-23 03:22:18,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18" (1/1) ... [2018-11-23 03:22:18,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18" (1/1) ... [2018-11-23 03:22:18,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18" (1/1) ... [2018-11-23 03:22:18,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18" (1/1) ... [2018-11-23 03:22:18,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18" (1/1) ... [2018-11-23 03:22:18,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18" (1/1) ... [2018-11-23 03:22:18,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:22:18,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:22:18,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:22:18,305 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:22:18,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/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 03:22:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 03:22:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 03:22:18,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 03:22:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-23 03:22:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 03:22:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:22:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:22:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-11-23 03:22:18,340 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-11-23 03:22:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 03:22:18,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 03:22:18,341 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 03:22:18,816 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:22:18,816 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-11-23 03:22:18,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:18 BoogieIcfgContainer [2018-11-23 03:22:18,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:22:18,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:22:18,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:22:18,819 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:22:18,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:22:17" (1/3) ... [2018-11-23 03:22:18,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef32898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:18, skipping insertion in model container [2018-11-23 03:22:18,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:18" (2/3) ... [2018-11-23 03:22:18,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef32898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:18, skipping insertion in model container [2018-11-23 03:22:18,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:18" (3/3) ... [2018-11-23 03:22:18,821 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of_false-unreach-call.i [2018-11-23 03:22:18,844 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,844 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,845 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,845 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,845 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,845 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,845 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,845 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,846 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,846 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,846 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,846 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,846 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,846 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,846 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,847 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,847 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,847 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,847 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,847 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,847 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,848 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,848 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,848 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,848 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,848 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,848 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,849 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,849 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,849 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,849 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,849 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,850 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,850 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,850 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,850 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,850 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,851 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,851 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,851 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,851 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,851 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,851 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,851 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,852 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,852 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,852 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,852 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,852 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,852 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,853 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,853 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,853 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,853 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,853 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,853 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,854 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,854 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,854 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,854 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,854 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,854 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,855 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,855 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,855 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,855 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,855 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,855 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,856 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,856 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:18,873 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 03:22:18,873 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:22:18,880 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-23 03:22:18,893 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-23 03:22:18,913 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:22:18,914 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:22:18,914 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:22:18,914 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:22:18,914 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:22:18,914 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:22:18,915 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:22:18,915 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:22:18,915 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:22:18,923 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146places, 154 transitions [2018-11-23 03:22:19,241 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12658 states. [2018-11-23 03:22:19,242 INFO L276 IsEmpty]: Start isEmpty. Operand 12658 states. [2018-11-23 03:22:19,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 03:22:19,252 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:22:19,253 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 03:22:19,255 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:22:19,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:22:19,258 INFO L82 PathProgramCache]: Analyzing trace with hash -124987563, now seen corresponding path program 1 times [2018-11-23 03:22:19,259 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:22:19,260 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:22:19,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:22:19,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:22:19,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:22:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:22:19,555 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 03:22:19,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:22:19,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:22:19,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:22:19,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:22:19,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:22:19,574 INFO L87 Difference]: Start difference. First operand 12658 states. Second operand 6 states. [2018-11-23 03:22:20,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:22:20,192 INFO L93 Difference]: Finished difference Result 16553 states and 46657 transitions. [2018-11-23 03:22:20,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 03:22:20,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-11-23 03:22:20,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:22:20,247 INFO L225 Difference]: With dead ends: 16553 [2018-11-23 03:22:20,247 INFO L226 Difference]: Without dead ends: 14482 [2018-11-23 03:22:20,248 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 03:22:20,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14482 states. [2018-11-23 03:22:20,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14482 to 11906. [2018-11-23 03:22:20,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11906 states. [2018-11-23 03:22:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11906 states to 11906 states and 33521 transitions. [2018-11-23 03:22:20,583 INFO L78 Accepts]: Start accepts. Automaton has 11906 states and 33521 transitions. Word has length 43 [2018-11-23 03:22:20,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:22:20,583 INFO L480 AbstractCegarLoop]: Abstraction has 11906 states and 33521 transitions. [2018-11-23 03:22:20,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:22:20,584 INFO L276 IsEmpty]: Start isEmpty. Operand 11906 states and 33521 transitions. [2018-11-23 03:22:20,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 03:22:20,586 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:22:20,586 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 03:22:20,587 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:22:20,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:22:20,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1215746383, now seen corresponding path program 1 times [2018-11-23 03:22:20,587 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:22:20,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:22:20,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:22:20,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:22:20,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:22:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:22:20,777 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 03:22:20,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:22:20,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:22:20,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:22:20,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:22:20,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:22:20,786 INFO L87 Difference]: Start difference. First operand 11906 states and 33521 transitions. Second operand 6 states. [2018-11-23 03:22:21,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:22:21,293 INFO L93 Difference]: Finished difference Result 17604 states and 49533 transitions. [2018-11-23 03:22:21,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-23 03:22:21,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-11-23 03:22:21,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:22:21,337 INFO L225 Difference]: With dead ends: 17604 [2018-11-23 03:22:21,337 INFO L226 Difference]: Without dead ends: 17604 [2018-11-23 03:22:21,338 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 03:22:21,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17604 states. [2018-11-23 03:22:21,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17604 to 12744. [2018-11-23 03:22:21,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12744 states. [2018-11-23 03:22:21,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12744 states to 12744 states and 35855 transitions. [2018-11-23 03:22:21,661 INFO L78 Accepts]: Start accepts. Automaton has 12744 states and 35855 transitions. Word has length 43 [2018-11-23 03:22:21,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:22:21,662 INFO L480 AbstractCegarLoop]: Abstraction has 12744 states and 35855 transitions. [2018-11-23 03:22:21,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:22:21,662 INFO L276 IsEmpty]: Start isEmpty. Operand 12744 states and 35855 transitions. [2018-11-23 03:22:21,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-23 03:22:21,667 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:22:21,667 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 03:22:21,667 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:22:21,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:22:21,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1032075219, now seen corresponding path program 1 times [2018-11-23 03:22:21,668 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:22:21,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:22:21,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:22:21,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:22:21,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:22:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:22:21,862 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 03:22:21,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:22:21,862 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 03:22:21,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 03:22:21,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 03:22:21,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-23 03:22:21,863 INFO L87 Difference]: Start difference. First operand 12744 states and 35855 transitions. Second operand 8 states. [2018-11-23 03:22:22,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:22:22,651 INFO L93 Difference]: Finished difference Result 16000 states and 44665 transitions. [2018-11-23 03:22:22,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 03:22:22,651 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-11-23 03:22:22,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:22:22,677 INFO L225 Difference]: With dead ends: 16000 [2018-11-23 03:22:22,677 INFO L226 Difference]: Without dead ends: 14206 [2018-11-23 03:22:22,678 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 03:22:22,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14206 states. [2018-11-23 03:22:22,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14206 to 13884. [2018-11-23 03:22:22,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13884 states. [2018-11-23 03:22:22,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13884 states to 13884 states and 39043 transitions. [2018-11-23 03:22:22,883 INFO L78 Accepts]: Start accepts. Automaton has 13884 states and 39043 transitions. Word has length 49 [2018-11-23 03:22:22,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:22:22,884 INFO L480 AbstractCegarLoop]: Abstraction has 13884 states and 39043 transitions. [2018-11-23 03:22:22,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 03:22:22,884 INFO L276 IsEmpty]: Start isEmpty. Operand 13884 states and 39043 transitions. [2018-11-23 03:22:22,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-23 03:22:22,885 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:22:22,885 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 03:22:22,886 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:22:22,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:22:22,886 INFO L82 PathProgramCache]: Analyzing trace with hash -542381444, now seen corresponding path program 1 times [2018-11-23 03:22:22,886 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:22:22,886 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:22:22,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:22:22,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:22:22,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:22:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:22:23,042 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 03:22:23,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:22:23,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 03:22:23,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 03:22:23,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 03:22:23,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-23 03:22:23,043 INFO L87 Difference]: Start difference. First operand 13884 states and 39043 transitions. Second operand 8 states. [2018-11-23 03:22:23,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:22:23,635 INFO L93 Difference]: Finished difference Result 22964 states and 64349 transitions. [2018-11-23 03:22:23,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 03:22:23,635 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-11-23 03:22:23,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:22:23,661 INFO L225 Difference]: With dead ends: 22964 [2018-11-23 03:22:23,661 INFO L226 Difference]: Without dead ends: 22964 [2018-11-23 03:22:23,662 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 03:22:23,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22964 states. [2018-11-23 03:22:23,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22964 to 16171. [2018-11-23 03:22:23,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16171 states. [2018-11-23 03:22:23,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16171 states to 16171 states and 45615 transitions. [2018-11-23 03:22:23,959 INFO L78 Accepts]: Start accepts. Automaton has 16171 states and 45615 transitions. Word has length 49 [2018-11-23 03:22:23,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:22:23,960 INFO L480 AbstractCegarLoop]: Abstraction has 16171 states and 45615 transitions. [2018-11-23 03:22:23,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 03:22:23,960 INFO L276 IsEmpty]: Start isEmpty. Operand 16171 states and 45615 transitions. [2018-11-23 03:22:23,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-11-23 03:22:23,962 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:22:23,962 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:22:23,962 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:22:23,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:22:23,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1057507681, now seen corresponding path program 1 times [2018-11-23 03:22:23,963 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:22:23,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:22:23,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:22:23,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:22:23,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:22:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 03:22:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 03:22:24,015 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 03:22:24,018 INFO L168 Benchmark]: Toolchain (without parser) took 6713.39 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 343.4 MB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -93.8 MB). Peak memory consumption was 249.6 MB. Max. memory is 11.5 GB. [2018-11-23 03:22:24,020 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:22:24,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 915.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 956.5 MB in the beginning and 1.0 GB in the end (delta: -73.8 MB). Peak memory consumption was 94.0 MB. Max. memory is 11.5 GB. [2018-11-23 03:22:24,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:22:24,021 INFO L168 Benchmark]: Boogie Preprocessor took 31.30 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:22:24,021 INFO L168 Benchmark]: RCFGBuilder took 511.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 978.3 MB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2018-11-23 03:22:24,022 INFO L168 Benchmark]: TraceAbstraction took 5200.75 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 190.8 MB). Free memory was 978.3 MB in the beginning and 1.1 GB in the end (delta: -72.0 MB). Peak memory consumption was 118.9 MB. Max. memory is 11.5 GB. [2018-11-23 03:22:24,025 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 915.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 956.5 MB in the beginning and 1.0 GB in the end (delta: -73.8 MB). Peak memory consumption was 94.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.30 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 511.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 978.3 MB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5200.75 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 190.8 MB). Free memory was 978.3 MB in the beginning and 1.1 GB in the end (delta: -72.0 MB). Peak memory consumption was 118.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.createATESequence(IcfgProgramExecution.java:179) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 03:22:25,503 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:22:25,505 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:22:25,514 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:22:25,514 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:22:25,515 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:22:25,515 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:22:25,517 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:22:25,518 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:22:25,518 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:22:25,519 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:22:25,520 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:22:25,521 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:22:25,522 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:22:25,522 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:22:25,523 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:22:25,524 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:22:25,525 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:22:25,527 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:22:25,528 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:22:25,528 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:22:25,530 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:22:25,531 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:22:25,531 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:22:25,531 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:22:25,532 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:22:25,533 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:22:25,534 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:22:25,535 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:22:25,536 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:22:25,536 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:22:25,537 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:22:25,537 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:22:25,537 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:22:25,538 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:22:25,539 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:22:25,539 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 03:22:25,550 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:22:25,550 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:22:25,551 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:22:25,551 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:22:25,551 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:22:25,552 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:22:25,552 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:22:25,552 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:22:25,552 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:22:25,552 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:22:25,552 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:22:25,552 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:22:25,552 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:22:25,552 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:22:25,553 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 03:22:25,553 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 03:22:25,553 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:22:25,553 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:22:25,553 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:22:25,553 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:22:25,553 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:22:25,553 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:22:25,554 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:22:25,554 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:22:25,554 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:22:25,554 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:22:25,554 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:22:25,554 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:22:25,554 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 03:22:25,554 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:22:25,555 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 03:22:25,555 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 03:22:25,555 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_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5302a66f3e1b957c89e781f7f052efe6572f798a [2018-11-23 03:22:25,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:22:25,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:22:25,593 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:22:25,594 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:22:25,594 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:22:25,595 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-11-23 03:22:25,630 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/data/27e33080b/22e63b65777f473a83fc9d525e7ec8c4/FLAG05e20f39b [2018-11-23 03:22:26,041 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:22:26,042 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-11-23 03:22:26,054 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/data/27e33080b/22e63b65777f473a83fc9d525e7ec8c4/FLAG05e20f39b [2018-11-23 03:22:26,387 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/bin-2019/uautomizer/data/27e33080b/22e63b65777f473a83fc9d525e7ec8c4 [2018-11-23 03:22:26,389 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:22:26,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:22:26,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:22:26,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:22:26,394 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:22:26,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:26" (1/1) ... [2018-11-23 03:22:26,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2b6cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:26, skipping insertion in model container [2018-11-23 03:22:26,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:22:26" (1/1) ... [2018-11-23 03:22:26,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:22:26,451 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:22:26,996 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:22:27,007 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:22:27,060 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:22:27,344 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:22:27,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27 WrapperNode [2018-11-23 03:22:27,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:22:27,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:22:27,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:22:27,345 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:22:27,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27" (1/1) ... [2018-11-23 03:22:27,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27" (1/1) ... [2018-11-23 03:22:27,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:22:27,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:22:27,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:22:27,388 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:22:27,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27" (1/1) ... [2018-11-23 03:22:27,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27" (1/1) ... [2018-11-23 03:22:27,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27" (1/1) ... [2018-11-23 03:22:27,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27" (1/1) ... [2018-11-23 03:22:27,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27" (1/1) ... [2018-11-23 03:22:27,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27" (1/1) ... [2018-11-23 03:22:27,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27" (1/1) ... [2018-11-23 03:22:27,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:22:27,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:22:27,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:22:27,425 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:22:27,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/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 03:22:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 03:22:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-11-23 03:22:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 03:22:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-23 03:22:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 03:22:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:22:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:22:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 03:22:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-11-23 03:22:27,465 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-11-23 03:22:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 03:22:27,467 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 03:22:28,000 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:22:28,000 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-11-23 03:22:28,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:28 BoogieIcfgContainer [2018-11-23 03:22:28,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:22:28,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:22:28,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:22:28,004 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:22:28,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:22:26" (1/3) ... [2018-11-23 03:22:28,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcc557f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:28, skipping insertion in model container [2018-11-23 03:22:28,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:22:27" (2/3) ... [2018-11-23 03:22:28,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcc557f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:22:28, skipping insertion in model container [2018-11-23 03:22:28,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:22:28" (3/3) ... [2018-11-23 03:22:28,006 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of_false-unreach-call.i [2018-11-23 03:22:28,032 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,032 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,032 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,033 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,033 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,033 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,033 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,033 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,033 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,033 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,034 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,034 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,034 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,034 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,034 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,034 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,034 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,034 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,035 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,035 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,035 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,035 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,035 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,035 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,036 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,036 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,036 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,036 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,036 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,036 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,036 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,041 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,041 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,041 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,041 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,041 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,042 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,042 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,042 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,042 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,042 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,042 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,042 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,042 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,043 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,043 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,043 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,043 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,043 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,043 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,043 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,043 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,044 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,044 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,044 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,044 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,044 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,044 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,044 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,045 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,045 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,045 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,045 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,045 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,045 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,046 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,046 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,046 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,046 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,046 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 03:22:28,068 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 03:22:28,068 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:22:28,073 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-23 03:22:28,084 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-23 03:22:28,098 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:22:28,099 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:22:28,099 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:22:28,099 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:22:28,099 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:22:28,099 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:22:28,099 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:22:28,100 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:22:28,100 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:22:28,107 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 143places, 151 transitions [2018-11-23 03:22:28,427 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12430 states. [2018-11-23 03:22:28,429 INFO L276 IsEmpty]: Start isEmpty. Operand 12430 states. [2018-11-23 03:22:28,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-23 03:22:28,440 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:22:28,441 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 03:22:28,443 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:22:28,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:22:28,447 INFO L82 PathProgramCache]: Analyzing trace with hash 2056417981, now seen corresponding path program 1 times [2018-11-23 03:22:28,452 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:22:28,452 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/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 03:22:28,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:22:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:22:28,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:22:28,897 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 03:22:28,901 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 03:22:28,901 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:22:28,909 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:28,924 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:28,924 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-23 03:22:28,960 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 03:22:28,968 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:22:28,969 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 03:22:28,970 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:22:28,992 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:29,014 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:29,015 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-11-23 03:22:29,046 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 03:22:29,051 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 03:22:29,051 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:22:29,054 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:29,058 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 03:22:29,058 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:5 [2018-11-23 03:22:29,107 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 03:22:29,107 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:22:29,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:22:29,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 03:22:29,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 03:22:29,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 03:22:29,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-23 03:22:29,129 INFO L87 Difference]: Start difference. First operand 12430 states. Second operand 8 states. [2018-11-23 03:22:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:22:30,674 INFO L93 Difference]: Finished difference Result 16325 states and 46009 transitions. [2018-11-23 03:22:30,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-23 03:22:30,675 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2018-11-23 03:22:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:22:30,736 INFO L225 Difference]: With dead ends: 16325 [2018-11-23 03:22:30,736 INFO L226 Difference]: Without dead ends: 14254 [2018-11-23 03:22:30,737 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 03:22:30,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14254 states. [2018-11-23 03:22:31,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14254 to 11678. [2018-11-23 03:22:31,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11678 states. [2018-11-23 03:22:31,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11678 states to 11678 states and 32873 transitions. [2018-11-23 03:22:31,111 INFO L78 Accepts]: Start accepts. Automaton has 11678 states and 32873 transitions. Word has length 40 [2018-11-23 03:22:31,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:22:31,111 INFO L480 AbstractCegarLoop]: Abstraction has 11678 states and 32873 transitions. [2018-11-23 03:22:31,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 03:22:31,111 INFO L276 IsEmpty]: Start isEmpty. Operand 11678 states and 32873 transitions. [2018-11-23 03:22:31,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 03:22:31,114 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:22:31,114 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:22:31,115 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:22:31,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:22:31,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1377584212, now seen corresponding path program 1 times [2018-11-23 03:22:31,116 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:22:31,116 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/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 03:22:31,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:22:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:22:31,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:22:31,432 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 03:22:31,434 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 03:22:31,435 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:22:31,438 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:31,446 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:31,447 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-11-23 03:22:31,473 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 03:22:31,478 INFO L701 Elim1Store]: detected not equals via solver [2018-11-23 03:22:31,479 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 03:22:31,479 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:22:31,489 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:31,500 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:31,501 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-11-23 03:22:31,533 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2018-11-23 03:22:31,536 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 3 [2018-11-23 03:22:31,537 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:22:31,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:31,542 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 03:22:31,542 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:3 [2018-11-23 03:22:31,593 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 03:22:31,593 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:22:31,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:22:31,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 03:22:31,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 03:22:31,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 03:22:31,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-23 03:22:31,602 INFO L87 Difference]: Start difference. First operand 11678 states and 32873 transitions. Second operand 10 states. [2018-11-23 03:22:33,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:22:33,613 INFO L93 Difference]: Finished difference Result 17215 states and 48432 transitions. [2018-11-23 03:22:33,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-23 03:22:33,614 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2018-11-23 03:22:33,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:22:33,658 INFO L225 Difference]: With dead ends: 17215 [2018-11-23 03:22:33,659 INFO L226 Difference]: Without dead ends: 17215 [2018-11-23 03:22:33,659 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2018-11-23 03:22:33,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17215 states. [2018-11-23 03:22:33,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17215 to 12516. [2018-11-23 03:22:33,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12516 states. [2018-11-23 03:22:33,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12516 states to 12516 states and 35207 transitions. [2018-11-23 03:22:33,974 INFO L78 Accepts]: Start accepts. Automaton has 12516 states and 35207 transitions. Word has length 41 [2018-11-23 03:22:33,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:22:33,974 INFO L480 AbstractCegarLoop]: Abstraction has 12516 states and 35207 transitions. [2018-11-23 03:22:33,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 03:22:33,974 INFO L276 IsEmpty]: Start isEmpty. Operand 12516 states and 35207 transitions. [2018-11-23 03:22:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 03:22:33,977 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:22:33,977 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 03:22:33,977 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:22:33,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:22:33,977 INFO L82 PathProgramCache]: Analyzing trace with hash -891356043, now seen corresponding path program 1 times [2018-11-23 03:22:33,978 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:22:33,978 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/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 03:22:34,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:22:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:22:34,186 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:22:34,194 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 03:22:34,197 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 03:22:34,197 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:22:34,201 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:34,204 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:34,205 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-23 03:22:34,216 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 03:22:34,219 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 03:22:34,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:22:34,222 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:34,224 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 03:22:34,224 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-11-23 03:22:34,254 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 03:22:34,254 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:22:34,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:22:34,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:22:34,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:22:34,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:22:34,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:22:34,257 INFO L87 Difference]: Start difference. First operand 12516 states and 35207 transitions. Second operand 6 states. [2018-11-23 03:22:35,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:22:35,019 INFO L93 Difference]: Finished difference Result 15767 states and 44012 transitions. [2018-11-23 03:22:35,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 03:22:35,020 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-11-23 03:22:35,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:22:35,037 INFO L225 Difference]: With dead ends: 15767 [2018-11-23 03:22:35,037 INFO L226 Difference]: Without dead ends: 13979 [2018-11-23 03:22:35,037 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 03:22:35,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13979 states. [2018-11-23 03:22:35,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13979 to 13657. [2018-11-23 03:22:35,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13657 states. [2018-11-23 03:22:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13657 states to 13657 states and 38396 transitions. [2018-11-23 03:22:35,221 INFO L78 Accepts]: Start accepts. Automaton has 13657 states and 38396 transitions. Word has length 46 [2018-11-23 03:22:35,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:22:35,222 INFO L480 AbstractCegarLoop]: Abstraction has 13657 states and 38396 transitions. [2018-11-23 03:22:35,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:22:35,222 INFO L276 IsEmpty]: Start isEmpty. Operand 13657 states and 38396 transitions. [2018-11-23 03:22:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 03:22:35,224 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:22:35,225 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 03:22:35,225 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:22:35,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:22:35,226 INFO L82 PathProgramCache]: Analyzing trace with hash -345150056, now seen corresponding path program 1 times [2018-11-23 03:22:35,226 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:22:35,227 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/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 03:22:35,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:22:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:22:35,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:22:35,411 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 03:22:35,414 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 03:22:35,414 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:22:35,418 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:35,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:35,422 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-11-23 03:22:35,436 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2018-11-23 03:22:35,445 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2018-11-23 03:22:35,445 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 03:22:35,450 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 03:22:35,458 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 03:22:35,458 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-11-23 03:22:35,491 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 03:22:35,491 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:22:35,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:22:35,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:22:35,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:22:35,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:22:35,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:22:35,498 INFO L87 Difference]: Start difference. First operand 13657 states and 38396 transitions. Second operand 6 states. [2018-11-23 03:22:36,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:22:36,368 INFO L93 Difference]: Finished difference Result 22939 states and 64256 transitions. [2018-11-23 03:22:36,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 03:22:36,368 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-11-23 03:22:36,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:22:36,389 INFO L225 Difference]: With dead ends: 22939 [2018-11-23 03:22:36,389 INFO L226 Difference]: Without dead ends: 22939 [2018-11-23 03:22:36,390 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2018-11-23 03:22:36,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22939 states. [2018-11-23 03:22:36,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22939 to 15944. [2018-11-23 03:22:36,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15944 states. [2018-11-23 03:22:36,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15944 states to 15944 states and 44968 transitions. [2018-11-23 03:22:36,771 INFO L78 Accepts]: Start accepts. Automaton has 15944 states and 44968 transitions. Word has length 47 [2018-11-23 03:22:36,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:22:36,771 INFO L480 AbstractCegarLoop]: Abstraction has 15944 states and 44968 transitions. [2018-11-23 03:22:36,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:22:36,771 INFO L276 IsEmpty]: Start isEmpty. Operand 15944 states and 44968 transitions. [2018-11-23 03:22:36,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-23 03:22:36,774 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:22:36,774 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 03:22:36,774 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:22:36,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:22:36,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1541882228, now seen corresponding path program 1 times [2018-11-23 03:22:36,775 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 03:22:36,775 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c4b26a98-6a87-42f8-a718-0a818b1d7745/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 03:22:36,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:22:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 03:22:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 03:22:37,548 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 03:22:37,549 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 03:22:37,551 INFO L168 Benchmark]: Toolchain (without parser) took 11161.15 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 355.5 MB). Free memory was 943.3 MB in the beginning and 1.2 GB in the end (delta: -209.7 MB). Peak memory consumption was 145.8 MB. Max. memory is 11.5 GB. [2018-11-23 03:22:37,552 INFO L168 Benchmark]: CDTParser took 0.12 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 03:22:37,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 953.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -200.5 MB). Peak memory consumption was 177.9 MB. Max. memory is 11.5 GB. [2018-11-23 03:22:37,553 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 03:22:37,553 INFO L168 Benchmark]: Boogie Preprocessor took 36.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. [2018-11-23 03:22:37,553 INFO L168 Benchmark]: RCFGBuilder took 575.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:22:37,554 INFO L168 Benchmark]: TraceAbstraction took 9549.28 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 204.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -69.0 MB). Peak memory consumption was 135.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:22:37,556 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 953.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -200.5 MB). Peak memory consumption was 177.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 575.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9549.28 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 204.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -69.0 MB). Peak memory consumption was 135.4 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...