./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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/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_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/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_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/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_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/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 0.1.23-635dfa2 [2018-12-09 10:00:33,288 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:00:33,289 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:00:33,295 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:00:33,295 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:00:33,296 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:00:33,296 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:00:33,297 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:00:33,298 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:00:33,298 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:00:33,299 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:00:33,299 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:00:33,300 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:00:33,300 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:00:33,301 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:00:33,301 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:00:33,301 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:00:33,302 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:00:33,303 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:00:33,304 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:00:33,304 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:00:33,305 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:00:33,307 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:00:33,307 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:00:33,307 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:00:33,308 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:00:33,308 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:00:33,309 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:00:33,309 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:00:33,310 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:00:33,310 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:00:33,311 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:00:33,311 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:00:33,311 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:00:33,312 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:00:33,312 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:00:33,312 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 10:00:33,319 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:00:33,319 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:00:33,320 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:00:33,320 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:00:33,320 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 10:00:33,320 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 10:00:33,320 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 10:00:33,320 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:00:33,321 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:00:33,321 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:00:33,321 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:00:33,321 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:00:33,321 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:00:33,321 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:00:33,321 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:00:33,321 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:00:33,321 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:00:33,321 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:00:33,321 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:00:33,321 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:00:33,322 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:00:33,322 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:00:33,322 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:00:33,322 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:00:33,322 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:00:33,322 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:00:33,322 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:00:33,322 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 10:00:33,322 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:00:33,322 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:00:33,322 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_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/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 [2018-12-09 10:00:33,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:00:33,352 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:00:33,354 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:00:33,355 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:00:33,355 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:00:33,356 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-12-09 10:00:33,389 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/data/90036f7c6/fa6cd80f18434bce9039c596e727ccbe/FLAG4b4935457 [2018-12-09 10:00:33,870 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:00:33,870 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-12-09 10:00:33,880 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/data/90036f7c6/fa6cd80f18434bce9039c596e727ccbe/FLAG4b4935457 [2018-12-09 10:00:34,373 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/data/90036f7c6/fa6cd80f18434bce9039c596e727ccbe [2018-12-09 10:00:34,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:00:34,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:00:34,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:00:34,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:00:34,378 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:00:34,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:00:34" (1/1) ... [2018-12-09 10:00:34,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab2707f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:34, skipping insertion in model container [2018-12-09 10:00:34,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:00:34" (1/1) ... [2018-12-09 10:00:34,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:00:34,413 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:00:34,794 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:00:34,845 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:00:34,884 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:00:35,030 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:00:35,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35 WrapperNode [2018-12-09 10:00:35,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:00:35,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:00:35,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:00:35,032 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:00:35,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35" (1/1) ... [2018-12-09 10:00:35,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35" (1/1) ... [2018-12-09 10:00:35,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:00:35,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:00:35,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:00:35,068 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:00:35,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35" (1/1) ... [2018-12-09 10:00:35,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35" (1/1) ... [2018-12-09 10:00:35,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35" (1/1) ... [2018-12-09 10:00:35,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35" (1/1) ... [2018-12-09 10:00:35,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35" (1/1) ... [2018-12-09 10:00:35,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35" (1/1) ... [2018-12-09 10:00:35,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35" (1/1) ... [2018-12-09 10:00:35,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:00:35,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:00:35,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:00:35,093 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:00:35,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/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 [2018-12-09 10:00:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 10:00:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:00:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 10:00:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-09 10:00:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 10:00:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:00:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:00:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-12-09 10:00:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-12-09 10:00:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 10:00:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 10:00:35,137 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-09 10:00:35,530 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:00:35,530 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-12-09 10:00:35,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:00:35 BoogieIcfgContainer [2018-12-09 10:00:35,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:00:35,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:00:35,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:00:35,533 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:00:35,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:00:34" (1/3) ... [2018-12-09 10:00:35,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdc6c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:00:35, skipping insertion in model container [2018-12-09 10:00:35,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:35" (2/3) ... [2018-12-09 10:00:35,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cdc6c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:00:35, skipping insertion in model container [2018-12-09 10:00:35,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:00:35" (3/3) ... [2018-12-09 10:00:35,535 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of_false-unreach-call.i [2018-12-09 10:00:35,557 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,557 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,557 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,557 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,558 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,558 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,558 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,558 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,558 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,558 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,558 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,558 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,558 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,559 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,559 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,559 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,559 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,559 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,559 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,559 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,559 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,559 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,560 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,560 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,560 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,560 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,560 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,560 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,560 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,560 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,561 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,561 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,561 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,561 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,561 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,561 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,561 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,562 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,562 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,562 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,562 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,562 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,562 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,562 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,562 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,562 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,562 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,563 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,563 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,563 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,563 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,563 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,563 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,563 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,563 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,564 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,564 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,564 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,564 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,564 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,565 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:35,578 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 10:00:35,578 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:00:35,583 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-12-09 10:00:35,593 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-12-09 10:00:35,608 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 10:00:35,609 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:00:35,609 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:00:35,609 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:00:35,609 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:00:35,609 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:00:35,609 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:00:35,609 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:00:35,609 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:00:35,617 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 146places, 154 transitions [2018-12-09 10:00:35,953 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12658 states. [2018-12-09 10:00:35,955 INFO L276 IsEmpty]: Start isEmpty. Operand 12658 states. [2018-12-09 10:00:35,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-09 10:00:35,963 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:00:35,964 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] [2018-12-09 10:00:35,965 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:00:35,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:00:35,969 INFO L82 PathProgramCache]: Analyzing trace with hash -124987563, now seen corresponding path program 1 times [2018-12-09 10:00:35,970 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:00:35,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:00:36,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:00:36,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:00:36,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:00:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:00:36,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:00:36,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:00:36,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:00:36,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:00:36,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:00:36,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:00:36,231 INFO L87 Difference]: Start difference. First operand 12658 states. Second operand 6 states. [2018-12-09 10:00:36,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:00:36,734 INFO L93 Difference]: Finished difference Result 16553 states and 46657 transitions. [2018-12-09 10:00:36,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 10:00:36,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-12-09 10:00:36,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:00:36,782 INFO L225 Difference]: With dead ends: 16553 [2018-12-09 10:00:36,783 INFO L226 Difference]: Without dead ends: 14482 [2018-12-09 10:00:36,784 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 [2018-12-09 10:00:36,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14482 states. [2018-12-09 10:00:37,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14482 to 11906. [2018-12-09 10:00:37,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11906 states. [2018-12-09 10:00:37,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11906 states to 11906 states and 33521 transitions. [2018-12-09 10:00:37,113 INFO L78 Accepts]: Start accepts. Automaton has 11906 states and 33521 transitions. Word has length 43 [2018-12-09 10:00:37,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:00:37,114 INFO L480 AbstractCegarLoop]: Abstraction has 11906 states and 33521 transitions. [2018-12-09 10:00:37,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:00:37,114 INFO L276 IsEmpty]: Start isEmpty. Operand 11906 states and 33521 transitions. [2018-12-09 10:00:37,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-09 10:00:37,116 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:00:37,116 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] [2018-12-09 10:00:37,116 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:00:37,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:00:37,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1215746383, now seen corresponding path program 1 times [2018-12-09 10:00:37,117 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:00:37,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:00:37,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:00:37,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:00:37,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:00:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:00:37,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:00:37,208 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:00:37,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:00:37,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:00:37,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:00:37,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:00:37,210 INFO L87 Difference]: Start difference. First operand 11906 states and 33521 transitions. Second operand 6 states. [2018-12-09 10:00:37,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:00:37,612 INFO L93 Difference]: Finished difference Result 17604 states and 49533 transitions. [2018-12-09 10:00:37,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 10:00:37,612 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-12-09 10:00:37,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:00:37,640 INFO L225 Difference]: With dead ends: 17604 [2018-12-09 10:00:37,640 INFO L226 Difference]: Without dead ends: 17604 [2018-12-09 10:00:37,640 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 [2018-12-09 10:00:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17604 states. [2018-12-09 10:00:37,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17604 to 12744. [2018-12-09 10:00:37,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12744 states. [2018-12-09 10:00:37,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12744 states to 12744 states and 35855 transitions. [2018-12-09 10:00:37,847 INFO L78 Accepts]: Start accepts. Automaton has 12744 states and 35855 transitions. Word has length 43 [2018-12-09 10:00:37,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:00:37,848 INFO L480 AbstractCegarLoop]: Abstraction has 12744 states and 35855 transitions. [2018-12-09 10:00:37,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:00:37,848 INFO L276 IsEmpty]: Start isEmpty. Operand 12744 states and 35855 transitions. [2018-12-09 10:00:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-09 10:00:37,850 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:00:37,850 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] [2018-12-09 10:00:37,851 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:00:37,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:00:37,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1032075219, now seen corresponding path program 1 times [2018-12-09 10:00:37,851 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:00:37,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:00:37,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:00:37,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:00:37,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:00:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:00:37,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:00:37,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:00:37,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 10:00:37,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 10:00:37,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 10:00:37,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:00:37,989 INFO L87 Difference]: Start difference. First operand 12744 states and 35855 transitions. Second operand 8 states. [2018-12-09 10:00:38,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:00:38,713 INFO L93 Difference]: Finished difference Result 16000 states and 44665 transitions. [2018-12-09 10:00:38,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 10:00:38,714 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-12-09 10:00:38,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:00:38,733 INFO L225 Difference]: With dead ends: 16000 [2018-12-09 10:00:38,734 INFO L226 Difference]: Without dead ends: 14206 [2018-12-09 10:00:38,734 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2018-12-09 10:00:38,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14206 states. [2018-12-09 10:00:38,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14206 to 13884. [2018-12-09 10:00:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13884 states. [2018-12-09 10:00:38,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13884 states to 13884 states and 39043 transitions. [2018-12-09 10:00:38,903 INFO L78 Accepts]: Start accepts. Automaton has 13884 states and 39043 transitions. Word has length 49 [2018-12-09 10:00:38,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:00:38,903 INFO L480 AbstractCegarLoop]: Abstraction has 13884 states and 39043 transitions. [2018-12-09 10:00:38,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 10:00:38,903 INFO L276 IsEmpty]: Start isEmpty. Operand 13884 states and 39043 transitions. [2018-12-09 10:00:38,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-09 10:00:38,905 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:00:38,905 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] [2018-12-09 10:00:38,905 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:00:38,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:00:38,906 INFO L82 PathProgramCache]: Analyzing trace with hash -542381444, now seen corresponding path program 1 times [2018-12-09 10:00:38,906 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:00:38,906 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:00:38,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:00:38,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:00:38,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:00:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:00:39,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:00:39,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:00:39,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 10:00:39,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 10:00:39,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 10:00:39,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:00:39,047 INFO L87 Difference]: Start difference. First operand 13884 states and 39043 transitions. Second operand 8 states. [2018-12-09 10:00:39,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:00:39,938 INFO L93 Difference]: Finished difference Result 22964 states and 64349 transitions. [2018-12-09 10:00:39,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 10:00:39,939 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2018-12-09 10:00:39,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:00:39,961 INFO L225 Difference]: With dead ends: 22964 [2018-12-09 10:00:39,961 INFO L226 Difference]: Without dead ends: 22964 [2018-12-09 10:00:39,961 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 [2018-12-09 10:00:40,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22964 states. [2018-12-09 10:00:40,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22964 to 16171. [2018-12-09 10:00:40,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16171 states. [2018-12-09 10:00:40,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16171 states to 16171 states and 45615 transitions. [2018-12-09 10:00:40,199 INFO L78 Accepts]: Start accepts. Automaton has 16171 states and 45615 transitions. Word has length 49 [2018-12-09 10:00:40,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:00:40,199 INFO L480 AbstractCegarLoop]: Abstraction has 16171 states and 45615 transitions. [2018-12-09 10:00:40,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 10:00:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand 16171 states and 45615 transitions. [2018-12-09 10:00:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 10:00:40,202 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:00:40,202 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] [2018-12-09 10:00:40,202 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:00:40,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:00:40,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1025315275, now seen corresponding path program 1 times [2018-12-09 10:00:40,203 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:00:40,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:00:40,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:00:40,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:00:40,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:00:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:00:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:00:40,261 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) [2018-12-09 10:00:40,264 INFO L168 Benchmark]: Toolchain (without parser) took 5889.39 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 406.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 222.2 MB. Max. memory is 11.5 GB. [2018-12-09 10:00:40,266 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:00:40,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 950.6 MB in the beginning and 981.6 MB in the end (delta: -31.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. [2018-12-09 10:00:40,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.46 ms. Allocated memory is still 1.1 GB. Free memory is still 981.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:00:40,267 INFO L168 Benchmark]: Boogie Preprocessor took 24.55 ms. Allocated memory is still 1.1 GB. Free memory was 981.6 MB in the beginning and 976.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:00:40,267 INFO L168 Benchmark]: RCFGBuilder took 437.70 ms. Allocated memory is still 1.1 GB. Free memory was 976.2 MB in the beginning and 930.2 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. [2018-12-09 10:00:40,268 INFO L168 Benchmark]: TraceAbstraction took 4732.75 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 304.6 MB). Free memory was 930.2 MB in the beginning and 1.1 GB in the end (delta: -205.2 MB). Peak memory consumption was 99.5 MB. Max. memory is 11.5 GB. [2018-12-09 10:00:40,270 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 655.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 950.6 MB in the beginning and 981.6 MB in the end (delta: -31.0 MB). Peak memory consumption was 86.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.46 ms. Allocated memory is still 1.1 GB. Free memory is still 981.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.55 ms. Allocated memory is still 1.1 GB. Free memory was 981.6 MB in the beginning and 976.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 437.70 ms. Allocated memory is still 1.1 GB. Free memory was 976.2 MB in the beginning and 930.2 MB in the end (delta: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4732.75 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 304.6 MB). Free memory was 930.2 MB in the beginning and 1.1 GB in the end (delta: -205.2 MB). Peak memory consumption was 99.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.modelcheckerutils.cfg.IcfgProgramExecution.createATESequence(IcfgProgramExecution.java:179) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:00:41,612 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:00:41,613 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:00:41,619 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:00:41,620 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:00:41,620 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:00:41,621 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:00:41,622 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:00:41,623 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:00:41,624 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:00:41,624 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:00:41,625 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:00:41,625 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:00:41,625 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:00:41,626 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:00:41,626 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:00:41,627 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:00:41,628 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:00:41,629 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:00:41,630 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:00:41,630 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:00:41,631 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:00:41,633 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:00:41,633 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:00:41,633 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:00:41,634 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:00:41,634 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:00:41,634 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:00:41,635 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:00:41,635 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:00:41,635 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:00:41,636 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:00:41,636 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:00:41,636 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:00:41,637 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:00:41,637 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:00:41,637 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-09 10:00:41,647 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:00:41,647 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:00:41,648 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:00:41,648 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:00:41,648 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 10:00:41,649 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 10:00:41,649 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 10:00:41,649 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:00:41,649 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:00:41,649 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:00:41,649 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:00:41,650 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:00:41,650 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:00:41,650 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:00:41,650 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 10:00:41,650 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 10:00:41,650 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:00:41,650 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:00:41,651 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:00:41,651 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:00:41,651 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:00:41,651 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:00:41,651 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:00:41,651 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:00:41,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:00:41,652 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:00:41,652 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:00:41,652 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:00:41,652 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-09 10:00:41,652 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:00:41,652 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 10:00:41,653 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 10:00:41,653 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_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/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 [2018-12-09 10:00:41,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:00:41,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:00:41,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:00:41,686 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:00:41,687 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:00:41,687 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-12-09 10:00:41,722 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/data/70aeff72d/136ea626d80d4b8ba6fcc8d7bfe94d2f/FLAGf0b7173a4 [2018-12-09 10:00:42,252 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:00:42,252 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/sv-benchmarks/c/ldv-races/race-2_3-container_of_false-unreach-call.i [2018-12-09 10:00:42,262 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/data/70aeff72d/136ea626d80d4b8ba6fcc8d7bfe94d2f/FLAGf0b7173a4 [2018-12-09 10:00:42,757 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/data/70aeff72d/136ea626d80d4b8ba6fcc8d7bfe94d2f [2018-12-09 10:00:42,760 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:00:42,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:00:42,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:00:42,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:00:42,764 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:00:42,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:00:42" (1/1) ... [2018-12-09 10:00:42,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a048df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:42, skipping insertion in model container [2018-12-09 10:00:42,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:00:42" (1/1) ... [2018-12-09 10:00:42,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:00:42,811 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:00:43,254 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:00:43,262 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:00:43,349 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:00:43,515 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:00:43,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43 WrapperNode [2018-12-09 10:00:43,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:00:43,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:00:43,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:00:43,516 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:00:43,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43" (1/1) ... [2018-12-09 10:00:43,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43" (1/1) ... [2018-12-09 10:00:43,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:00:43,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:00:43,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:00:43,555 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:00:43,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43" (1/1) ... [2018-12-09 10:00:43,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43" (1/1) ... [2018-12-09 10:00:43,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43" (1/1) ... [2018-12-09 10:00:43,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43" (1/1) ... [2018-12-09 10:00:43,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43" (1/1) ... [2018-12-09 10:00:43,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43" (1/1) ... [2018-12-09 10:00:43,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43" (1/1) ... [2018-12-09 10:00:43,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:00:43,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:00:43,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:00:43,582 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:00:43,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/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 [2018-12-09 10:00:43,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 10:00:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-12-09 10:00:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:00:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-09 10:00:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 10:00:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:00:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:00:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 10:00:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-12-09 10:00:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-12-09 10:00:43,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 10:00:43,617 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-09 10:00:44,064 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:00:44,064 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-12-09 10:00:44,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:00:44 BoogieIcfgContainer [2018-12-09 10:00:44,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:00:44,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:00:44,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:00:44,067 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:00:44,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:00:42" (1/3) ... [2018-12-09 10:00:44,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cb6733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:00:44, skipping insertion in model container [2018-12-09 10:00:44,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:43" (2/3) ... [2018-12-09 10:00:44,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50cb6733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:00:44, skipping insertion in model container [2018-12-09 10:00:44,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:00:44" (3/3) ... [2018-12-09 10:00:44,069 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of_false-unreach-call.i [2018-12-09 10:00:44,089 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,090 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,090 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,090 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,090 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,090 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,090 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,090 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,090 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,090 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,090 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,091 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,092 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,092 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,092 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,092 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,092 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,092 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,092 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,092 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,092 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,092 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,093 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,093 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,093 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,093 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,093 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,093 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,093 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,093 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,094 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,094 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,094 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,094 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,094 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,094 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,094 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,094 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,094 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,094 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,094 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,095 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,095 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,095 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,095 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,095 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,095 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,095 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,095 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,095 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,096 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,096 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,096 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,096 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,096 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,096 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,096 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,097 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,097 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,097 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,097 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,097 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 10:00:44,118 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 10:00:44,118 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:00:44,123 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-12-09 10:00:44,132 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-12-09 10:00:44,147 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 10:00:44,147 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:00:44,147 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:00:44,147 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:00:44,147 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:00:44,147 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:00:44,148 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:00:44,148 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:00:44,148 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:00:44,154 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 143places, 151 transitions [2018-12-09 10:00:44,426 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 12430 states. [2018-12-09 10:00:44,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12430 states. [2018-12-09 10:00:44,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-09 10:00:44,436 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:00:44,437 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] [2018-12-09 10:00:44,438 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:00:44,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:00:44,442 INFO L82 PathProgramCache]: Analyzing trace with hash 2056417981, now seen corresponding path program 1 times [2018-12-09 10:00:44,446 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 10:00:44,446 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 10:00:44,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:00:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:00:44,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:00:44,811 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 [2018-12-09 10:00:44,814 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 [2018-12-09 10:00:44,815 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 10:00:44,819 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:44,832 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:44,832 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-12-09 10:00:44,863 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 [2018-12-09 10:00:44,871 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 10:00:44,872 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 [2018-12-09 10:00:44,872 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 10:00:44,886 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:44,905 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:44,905 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-12-09 10:00:44,934 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 [2018-12-09 10:00:44,938 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 [2018-12-09 10:00:44,939 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 10:00:44,942 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:44,946 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:44,947 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:5 [2018-12-09 10:00:45,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:00:45,001 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:00:45,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:00:45,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 10:00:45,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 10:00:45,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 10:00:45,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-09 10:00:45,017 INFO L87 Difference]: Start difference. First operand 12430 states. Second operand 8 states. [2018-12-09 10:00:46,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:00:46,407 INFO L93 Difference]: Finished difference Result 16325 states and 46009 transitions. [2018-12-09 10:00:46,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-09 10:00:46,408 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2018-12-09 10:00:46,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:00:46,450 INFO L225 Difference]: With dead ends: 16325 [2018-12-09 10:00:46,451 INFO L226 Difference]: Without dead ends: 14254 [2018-12-09 10:00:46,452 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 [2018-12-09 10:00:46,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14254 states. [2018-12-09 10:00:46,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14254 to 11678. [2018-12-09 10:00:46,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11678 states. [2018-12-09 10:00:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11678 states to 11678 states and 32873 transitions. [2018-12-09 10:00:46,705 INFO L78 Accepts]: Start accepts. Automaton has 11678 states and 32873 transitions. Word has length 40 [2018-12-09 10:00:46,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:00:46,706 INFO L480 AbstractCegarLoop]: Abstraction has 11678 states and 32873 transitions. [2018-12-09 10:00:46,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 10:00:46,706 INFO L276 IsEmpty]: Start isEmpty. Operand 11678 states and 32873 transitions. [2018-12-09 10:00:46,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-12-09 10:00:46,708 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:00:46,708 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] [2018-12-09 10:00:46,708 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:00:46,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:00:46,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1377584212, now seen corresponding path program 1 times [2018-12-09 10:00:46,709 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 10:00:46,709 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 10:00:46,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:00:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:00:46,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:00:46,980 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 [2018-12-09 10:00:46,983 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 [2018-12-09 10:00:46,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 10:00:46,986 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:46,994 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:46,994 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:17, output treesize:13 [2018-12-09 10:00:47,020 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 [2018-12-09 10:00:47,025 INFO L701 Elim1Store]: detected not equals via solver [2018-12-09 10:00:47,025 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 [2018-12-09 10:00:47,026 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 10:00:47,035 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:47,046 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:47,046 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2018-12-09 10:00:47,078 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 [2018-12-09 10:00:47,081 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 [2018-12-09 10:00:47,081 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 10:00:47,083 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:47,085 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:47,086 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:3 [2018-12-09 10:00:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:00:47,136 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:00:47,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:00:47,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 10:00:47,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 10:00:47,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 10:00:47,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-12-09 10:00:47,140 INFO L87 Difference]: Start difference. First operand 11678 states and 32873 transitions. Second operand 10 states. [2018-12-09 10:00:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:00:49,042 INFO L93 Difference]: Finished difference Result 17215 states and 48432 transitions. [2018-12-09 10:00:49,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-09 10:00:49,042 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2018-12-09 10:00:49,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:00:49,080 INFO L225 Difference]: With dead ends: 17215 [2018-12-09 10:00:49,080 INFO L226 Difference]: Without dead ends: 17215 [2018-12-09 10:00:49,081 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 [2018-12-09 10:00:49,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17215 states. [2018-12-09 10:00:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17215 to 12516. [2018-12-09 10:00:49,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12516 states. [2018-12-09 10:00:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12516 states to 12516 states and 35207 transitions. [2018-12-09 10:00:49,294 INFO L78 Accepts]: Start accepts. Automaton has 12516 states and 35207 transitions. Word has length 41 [2018-12-09 10:00:49,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:00:49,295 INFO L480 AbstractCegarLoop]: Abstraction has 12516 states and 35207 transitions. [2018-12-09 10:00:49,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 10:00:49,295 INFO L276 IsEmpty]: Start isEmpty. Operand 12516 states and 35207 transitions. [2018-12-09 10:00:49,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 10:00:49,297 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:00:49,297 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] [2018-12-09 10:00:49,297 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:00:49,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:00:49,298 INFO L82 PathProgramCache]: Analyzing trace with hash -891356043, now seen corresponding path program 1 times [2018-12-09 10:00:49,298 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 10:00:49,298 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 10:00:49,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:00:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:00:49,478 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:00:49,485 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 [2018-12-09 10:00:49,488 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 [2018-12-09 10:00:49,488 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 10:00:49,491 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:49,494 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:49,495 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-12-09 10:00:49,504 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 [2018-12-09 10:00:49,507 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 [2018-12-09 10:00:49,507 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 10:00:49,509 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:49,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:49,511 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:5 [2018-12-09 10:00:49,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:00:49,539 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:00:49,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:00:49,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:00:49,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:00:49,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:00:49,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:00:49,543 INFO L87 Difference]: Start difference. First operand 12516 states and 35207 transitions. Second operand 6 states. [2018-12-09 10:00:50,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:00:50,279 INFO L93 Difference]: Finished difference Result 15767 states and 44012 transitions. [2018-12-09 10:00:50,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 10:00:50,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-12-09 10:00:50,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:00:50,304 INFO L225 Difference]: With dead ends: 15767 [2018-12-09 10:00:50,304 INFO L226 Difference]: Without dead ends: 13979 [2018-12-09 10:00:50,304 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 [2018-12-09 10:00:50,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13979 states. [2018-12-09 10:00:50,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13979 to 13657. [2018-12-09 10:00:50,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13657 states. [2018-12-09 10:00:50,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13657 states to 13657 states and 38396 transitions. [2018-12-09 10:00:50,473 INFO L78 Accepts]: Start accepts. Automaton has 13657 states and 38396 transitions. Word has length 46 [2018-12-09 10:00:50,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:00:50,473 INFO L480 AbstractCegarLoop]: Abstraction has 13657 states and 38396 transitions. [2018-12-09 10:00:50,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:00:50,473 INFO L276 IsEmpty]: Start isEmpty. Operand 13657 states and 38396 transitions. [2018-12-09 10:00:50,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 10:00:50,475 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:00:50,475 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] [2018-12-09 10:00:50,475 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:00:50,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:00:50,475 INFO L82 PathProgramCache]: Analyzing trace with hash -345150056, now seen corresponding path program 1 times [2018-12-09 10:00:50,476 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 10:00:50,476 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 10:00:50,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:00:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:00:50,663 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 10:00:50,672 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 [2018-12-09 10:00:50,675 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 [2018-12-09 10:00:50,675 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 10:00:50,679 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:50,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:50,683 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2018-12-09 10:00:50,697 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 [2018-12-09 10:00:50,701 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 [2018-12-09 10:00:50,701 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 10:00:50,704 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:50,707 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 10:00:50,707 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2018-12-09 10:00:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 10:00:50,741 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 10:00:50,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 10:00:50,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 10:00:50,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 10:00:50,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 10:00:50,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 10:00:50,744 INFO L87 Difference]: Start difference. First operand 13657 states and 38396 transitions. Second operand 6 states. [2018-12-09 10:00:51,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 10:00:51,576 INFO L93 Difference]: Finished difference Result 22939 states and 64256 transitions. [2018-12-09 10:00:51,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 10:00:51,576 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-12-09 10:00:51,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 10:00:51,598 INFO L225 Difference]: With dead ends: 22939 [2018-12-09 10:00:51,598 INFO L226 Difference]: Without dead ends: 22939 [2018-12-09 10:00:51,598 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 [2018-12-09 10:00:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22939 states. [2018-12-09 10:00:51,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22939 to 15944. [2018-12-09 10:00:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15944 states. [2018-12-09 10:00:51,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15944 states to 15944 states and 44968 transitions. [2018-12-09 10:00:51,828 INFO L78 Accepts]: Start accepts. Automaton has 15944 states and 44968 transitions. Word has length 47 [2018-12-09 10:00:51,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 10:00:51,828 INFO L480 AbstractCegarLoop]: Abstraction has 15944 states and 44968 transitions. [2018-12-09 10:00:51,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 10:00:51,828 INFO L276 IsEmpty]: Start isEmpty. Operand 15944 states and 44968 transitions. [2018-12-09 10:00:51,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-09 10:00:51,830 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:00:51,831 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] [2018-12-09 10:00:51,831 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:00:51,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:00:51,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1541882228, now seen corresponding path program 1 times [2018-12-09 10:00:51,831 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 10:00:51,831 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1bb4d85b-c875-4898-a55c-6cf0136f6aa4/bin-2019/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 10:00:51,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:00:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:00:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:00:52,582 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 10:00:52,584 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) [2018-12-09 10:00:52,590 INFO L168 Benchmark]: Toolchain (without parser) took 9829.25 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 329.3 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -110.9 MB). Peak memory consumption was 218.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:00:52,592 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:00:52,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -63.5 MB). Peak memory consumption was 86.8 MB. Max. memory is 11.5 GB. [2018-12-09 10:00:52,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.60 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. [2018-12-09 10:00:52,592 INFO L168 Benchmark]: Boogie Preprocessor took 26.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 994.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:00:52,592 INFO L168 Benchmark]: RCFGBuilder took 482.76 ms. Allocated memory is still 1.2 GB. Free memory was 994.9 MB in the beginning and 944.8 MB in the end (delta: 50.1 MB). Peak memory consumption was 50.1 MB. Max. memory is 11.5 GB. [2018-12-09 10:00:52,593 INFO L168 Benchmark]: TraceAbstraction took 8523.80 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 194.0 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -104.1 MB). Peak memory consumption was 89.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:00:52,594 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 753.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 938.0 MB in the beginning and 1.0 GB in the end (delta: -63.5 MB). Peak memory consumption was 86.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.60 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 26.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 994.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 482.76 ms. Allocated memory is still 1.2 GB. Free memory was 994.9 MB in the beginning and 944.8 MB in the end (delta: 50.1 MB). Peak memory consumption was 50.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8523.80 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 194.0 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -104.1 MB). Peak memory consumption was 89.9 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...