./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack_longer_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_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88d184f750ae7f3761c058885cf1dc5c9c85a913 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88d184f750ae7f3761c058885cf1dc5c9c85a913 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 05:54:53,095 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 05:54:53,096 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 05:54:53,102 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 05:54:53,102 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 05:54:53,103 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 05:54:53,103 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 05:54:53,104 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 05:54:53,105 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 05:54:53,105 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 05:54:53,106 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 05:54:53,106 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 05:54:53,106 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 05:54:53,107 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 05:54:53,107 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 05:54:53,108 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 05:54:53,108 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 05:54:53,109 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 05:54:53,110 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 05:54:53,111 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 05:54:53,111 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 05:54:53,112 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 05:54:53,113 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 05:54:53,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 05:54:53,113 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 05:54:53,114 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 05:54:53,114 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 05:54:53,115 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 05:54:53,115 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 05:54:53,115 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 05:54:53,116 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 05:54:53,116 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 05:54:53,116 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 05:54:53,116 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 05:54:53,117 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 05:54:53,117 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 05:54:53,117 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 05:54:53,124 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 05:54:53,125 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 05:54:53,125 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 05:54:53,125 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 05:54:53,125 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 05:54:53,125 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 05:54:53,125 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 05:54:53,126 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 05:54:53,126 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 05:54:53,126 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 05:54:53,126 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 05:54:53,126 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 05:54:53,126 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 05:54:53,126 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 05:54:53,126 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 05:54:53,126 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 05:54:53,127 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 05:54:53,127 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 05:54:53,128 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 05:54:53,128 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 05:54:53,128 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 05:54:53,128 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 05:54:53,128 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 05:54:53,128 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 05:54:53,128 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 05:54:53,128 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan 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 -> Taipan 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 -> 88d184f750ae7f3761c058885cf1dc5c9c85a913 [2018-12-03 05:54:53,146 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 05:54:53,155 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 05:54:53,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 05:54:53,159 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 05:54:53,159 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 05:54:53,160 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/../../sv-benchmarks/c/pthread/stack_longer_false-unreach-call.i [2018-12-03 05:54:53,198 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/data/67b7bde28/e1bc78b744084fda927f15f884ca0988/FLAG5b8ef86d0 [2018-12-03 05:54:53,689 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 05:54:53,689 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/sv-benchmarks/c/pthread/stack_longer_false-unreach-call.i [2018-12-03 05:54:53,697 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/data/67b7bde28/e1bc78b744084fda927f15f884ca0988/FLAG5b8ef86d0 [2018-12-03 05:54:54,179 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/data/67b7bde28/e1bc78b744084fda927f15f884ca0988 [2018-12-03 05:54:54,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 05:54:54,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 05:54:54,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 05:54:54,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 05:54:54,184 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 05:54:54,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:54:54" (1/1) ... [2018-12-03 05:54:54,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75dc6678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54, skipping insertion in model container [2018-12-03 05:54:54,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:54:54" (1/1) ... [2018-12-03 05:54:54,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 05:54:54,211 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 05:54:54,463 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:54:54,493 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 05:54:54,526 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:54:54,611 INFO L195 MainTranslator]: Completed translation [2018-12-03 05:54:54,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54 WrapperNode [2018-12-03 05:54:54,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 05:54:54,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 05:54:54,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 05:54:54,612 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 05:54:54,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54" (1/1) ... [2018-12-03 05:54:54,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54" (1/1) ... [2018-12-03 05:54:54,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 05:54:54,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 05:54:54,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 05:54:54,658 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 05:54:54,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54" (1/1) ... [2018-12-03 05:54:54,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54" (1/1) ... [2018-12-03 05:54:54,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54" (1/1) ... [2018-12-03 05:54:54,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54" (1/1) ... [2018-12-03 05:54:54,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54" (1/1) ... [2018-12-03 05:54:54,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54" (1/1) ... [2018-12-03 05:54:54,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54" (1/1) ... [2018-12-03 05:54:54,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 05:54:54,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 05:54:54,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 05:54:54,687 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 05:54:54,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/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 [2018-12-03 05:54:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2018-12-03 05:54:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2018-12-03 05:54:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2018-12-03 05:54:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2018-12-03 05:54:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 05:54:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-03 05:54:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 05:54:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 05:54:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 05:54:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-03 05:54:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 05:54:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 05:54:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 05:54:54,730 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-03 05:54:55,307 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 05:54:55,307 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-12-03 05:54:55,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:54:55 BoogieIcfgContainer [2018-12-03 05:54:55,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 05:54:55,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 05:54:55,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 05:54:55,310 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 05:54:55,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 05:54:54" (1/3) ... [2018-12-03 05:54:55,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177428c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:54:55, skipping insertion in model container [2018-12-03 05:54:55,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:54" (2/3) ... [2018-12-03 05:54:55,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177428c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:54:55, skipping insertion in model container [2018-12-03 05:54:55,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:54:55" (3/3) ... [2018-12-03 05:54:55,313 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer_false-unreach-call.i [2018-12-03 05:54:55,341 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,341 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,342 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,342 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,342 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,342 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,342 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,342 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,342 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,342 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,343 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,343 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,343 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,343 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,343 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,343 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,343 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,343 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,343 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,343 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,344 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,344 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,344 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,344 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,344 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,344 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,344 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,344 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,344 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,344 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,344 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,345 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,345 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,345 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,345 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,345 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,345 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,345 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,345 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,345 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,346 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,346 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,346 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,346 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,346 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,346 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,346 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,346 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,346 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,346 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,347 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,347 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,347 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,347 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,347 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,347 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,347 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,347 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,347 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,347 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,348 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,348 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,348 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,348 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,348 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,348 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,348 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,349 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,349 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,349 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,349 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,349 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,349 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,349 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,349 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,349 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,350 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,350 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,350 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,350 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,350 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,350 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,350 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,350 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,350 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,350 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,350 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,351 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,351 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,351 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,351 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,351 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,351 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,351 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,352 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,352 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,352 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,352 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,352 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,352 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,352 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,352 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,352 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,352 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,353 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,354 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,354 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,354 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,355 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,355 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:54:55,363 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-03 05:54:55,363 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 05:54:55,369 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-03 05:54:55,378 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-03 05:54:55,394 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 05:54:55,394 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 05:54:55,394 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 05:54:55,394 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 05:54:55,394 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 05:54:55,394 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 05:54:55,394 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 05:54:55,395 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 05:54:55,405 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 530places, 538 transitions [2018-12-03 05:54:55,491 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6905 states. [2018-12-03 05:54:55,492 INFO L276 IsEmpty]: Start isEmpty. Operand 6905 states. [2018-12-03 05:54:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2018-12-03 05:54:55,517 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:54:55,517 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:54:55,519 INFO L423 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:54:55,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:54:55,523 INFO L82 PathProgramCache]: Analyzing trace with hash -541831717, now seen corresponding path program 1 times [2018-12-03 05:54:55,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:54:55,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:54:55,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:54:55,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:54:55,562 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:54:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:54:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:54:55,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:54:55,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 05:54:55,979 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:54:55,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 05:54:55,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 05:54:55,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:54:55,992 INFO L87 Difference]: Start difference. First operand 6905 states. Second operand 3 states. [2018-12-03 05:54:56,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:54:56,070 INFO L93 Difference]: Finished difference Result 10253 states and 26752 transitions. [2018-12-03 05:54:56,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 05:54:56,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 445 [2018-12-03 05:54:56,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:54:56,105 INFO L225 Difference]: With dead ends: 10253 [2018-12-03 05:54:56,106 INFO L226 Difference]: Without dead ends: 10145 [2018-12-03 05:54:56,107 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:54:56,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10145 states. [2018-12-03 05:54:56,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10145 to 8675. [2018-12-03 05:54:56,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8675 states. [2018-12-03 05:54:56,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8675 states to 8675 states and 22733 transitions. [2018-12-03 05:54:56,290 INFO L78 Accepts]: Start accepts. Automaton has 8675 states and 22733 transitions. Word has length 445 [2018-12-03 05:54:56,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:54:56,291 INFO L480 AbstractCegarLoop]: Abstraction has 8675 states and 22733 transitions. [2018-12-03 05:54:56,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 05:54:56,291 INFO L276 IsEmpty]: Start isEmpty. Operand 8675 states and 22733 transitions. [2018-12-03 05:54:56,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2018-12-03 05:54:56,298 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:54:56,298 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:54:56,298 INFO L423 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:54:56,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:54:56,299 INFO L82 PathProgramCache]: Analyzing trace with hash 552502460, now seen corresponding path program 1 times [2018-12-03 05:54:56,299 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:54:56,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:54:56,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:54:56,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:54:56,301 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:54:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:54:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:54:56,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:54:56,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 05:54:56,462 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:54:56,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 05:54:56,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 05:54:56,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:54:56,464 INFO L87 Difference]: Start difference. First operand 8675 states and 22733 transitions. Second operand 3 states. [2018-12-03 05:54:56,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:54:56,512 INFO L93 Difference]: Finished difference Result 8096 states and 20868 transitions. [2018-12-03 05:54:56,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 05:54:56,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 449 [2018-12-03 05:54:56,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:54:56,529 INFO L225 Difference]: With dead ends: 8096 [2018-12-03 05:54:56,529 INFO L226 Difference]: Without dead ends: 7955 [2018-12-03 05:54:56,529 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:54:56,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2018-12-03 05:54:56,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 7727. [2018-12-03 05:54:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7727 states. [2018-12-03 05:54:56,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7727 states to 7727 states and 20007 transitions. [2018-12-03 05:54:56,634 INFO L78 Accepts]: Start accepts. Automaton has 7727 states and 20007 transitions. Word has length 449 [2018-12-03 05:54:56,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:54:56,635 INFO L480 AbstractCegarLoop]: Abstraction has 7727 states and 20007 transitions. [2018-12-03 05:54:56,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 05:54:56,635 INFO L276 IsEmpty]: Start isEmpty. Operand 7727 states and 20007 transitions. [2018-12-03 05:54:56,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2018-12-03 05:54:56,640 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:54:56,640 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:54:56,641 INFO L423 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:54:56,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:54:56,641 INFO L82 PathProgramCache]: Analyzing trace with hash 701299006, now seen corresponding path program 1 times [2018-12-03 05:54:56,641 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:54:56,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:54:56,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:54:56,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:54:56,642 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:54:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:54:56,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:54:56,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:54:56,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 05:54:56,819 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 05:54:56,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 05:54:56,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 05:54:56,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 05:54:56,820 INFO L87 Difference]: Start difference. First operand 7727 states and 20007 transitions. Second operand 4 states. [2018-12-03 05:54:56,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:54:56,870 INFO L93 Difference]: Finished difference Result 10592 states and 27610 transitions. [2018-12-03 05:54:56,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 05:54:56,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 454 [2018-12-03 05:54:56,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:54:56,886 INFO L225 Difference]: With dead ends: 10592 [2018-12-03 05:54:56,886 INFO L226 Difference]: Without dead ends: 10592 [2018-12-03 05:54:56,887 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 05:54:56,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10592 states. [2018-12-03 05:54:56,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10592 to 8051. [2018-12-03 05:54:56,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8051 states. [2018-12-03 05:54:57,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8051 states to 8051 states and 20874 transitions. [2018-12-03 05:54:57,002 INFO L78 Accepts]: Start accepts. Automaton has 8051 states and 20874 transitions. Word has length 454 [2018-12-03 05:54:57,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:54:57,002 INFO L480 AbstractCegarLoop]: Abstraction has 8051 states and 20874 transitions. [2018-12-03 05:54:57,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 05:54:57,002 INFO L276 IsEmpty]: Start isEmpty. Operand 8051 states and 20874 transitions. [2018-12-03 05:54:57,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2018-12-03 05:54:57,009 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:54:57,009 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:54:57,009 INFO L423 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:54:57,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:54:57,010 INFO L82 PathProgramCache]: Analyzing trace with hash -84982702, now seen corresponding path program 1 times [2018-12-03 05:54:57,010 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 05:54:57,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:54:57,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:54:57,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 05:54:57,011 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 05:54:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:54:57,226 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:54:57,226 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:54:57,226 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 05:54:57,227 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) 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) Caused by: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-12-03 05:54:57,229 INFO L168 Benchmark]: Toolchain (without parser) took 3047.95 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 604.5 MB). Free memory was 951.3 MB in the beginning and 1.5 GB in the end (delta: -555.4 MB). Peak memory consumption was 496.7 MB. Max. memory is 11.5 GB. [2018-12-03 05:54:57,230 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:54:57,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -111.7 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2018-12-03 05:54:57,231 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:54:57,231 INFO L168 Benchmark]: Boogie Preprocessor took 28.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-03 05:54:57,231 INFO L168 Benchmark]: RCFGBuilder took 621.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.7 MB in the end (delta: 98.6 MB). Peak memory consumption was 98.6 MB. Max. memory is 11.5 GB. [2018-12-03 05:54:57,232 INFO L168 Benchmark]: TraceAbstraction took 1920.32 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 481.8 MB). Free memory was 957.7 MB in the beginning and 1.5 GB in the end (delta: -549.0 MB). Peak memory consumption was 380.4 MB. Max. memory is 11.5 GB. [2018-12-03 05:54:57,233 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 428.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -111.7 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 621.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.7 MB in the end (delta: 98.6 MB). Peak memory consumption was 98.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1920.32 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 481.8 MB). Free memory was 957.7 MB in the beginning and 1.5 GB in the end (delta: -549.0 MB). Peak memory consumption was 380.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-03 05:54:58,623 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 05:54:58,624 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 05:54:58,633 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 05:54:58,633 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 05:54:58,634 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 05:54:58,635 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 05:54:58,636 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 05:54:58,637 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 05:54:58,638 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 05:54:58,638 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 05:54:58,639 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 05:54:58,639 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 05:54:58,640 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 05:54:58,641 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 05:54:58,641 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 05:54:58,642 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 05:54:58,643 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 05:54:58,645 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 05:54:58,646 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 05:54:58,646 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 05:54:58,647 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 05:54:58,649 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 05:54:58,649 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 05:54:58,649 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 05:54:58,650 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 05:54:58,650 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 05:54:58,651 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 05:54:58,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 05:54:58,652 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 05:54:58,652 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 05:54:58,653 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 05:54:58,653 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 05:54:58,653 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 05:54:58,654 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 05:54:58,654 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 05:54:58,654 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 05:54:58,664 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 05:54:58,665 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 05:54:58,665 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 05:54:58,666 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 05:54:58,666 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 05:54:58,666 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 05:54:58,666 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 05:54:58,666 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 05:54:58,666 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 05:54:58,666 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 05:54:58,667 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 05:54:58,667 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 05:54:58,667 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 05:54:58,667 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 05:54:58,667 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 05:54:58,667 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 05:54:58,668 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 05:54:58,668 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 05:54:58,668 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 05:54:58,668 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 05:54:58,668 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 05:54:58,668 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 05:54:58,668 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 05:54:58,669 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 05:54:58,669 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 05:54:58,669 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 05:54:58,669 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 05:54:58,669 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 05:54:58,669 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 05:54:58,669 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 05:54:58,669 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 05:54:58,670 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 05:54:58,670 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 05:54:58,670 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 05:54:58,670 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 05:54:58,670 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_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan 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 -> Taipan 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 -> 88d184f750ae7f3761c058885cf1dc5c9c85a913 [2018-12-03 05:54:58,693 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 05:54:58,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 05:54:58,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 05:54:58,704 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 05:54:58,705 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 05:54:58,705 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/../../sv-benchmarks/c/pthread/stack_longer_false-unreach-call.i [2018-12-03 05:54:58,740 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/data/b33f8a029/9761e054709b475e87af42e817e86e19/FLAG199dc5c91 [2018-12-03 05:54:59,160 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 05:54:59,161 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/sv-benchmarks/c/pthread/stack_longer_false-unreach-call.i [2018-12-03 05:54:59,169 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/data/b33f8a029/9761e054709b475e87af42e817e86e19/FLAG199dc5c91 [2018-12-03 05:54:59,177 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/data/b33f8a029/9761e054709b475e87af42e817e86e19 [2018-12-03 05:54:59,179 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 05:54:59,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 05:54:59,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 05:54:59,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 05:54:59,182 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 05:54:59,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:54:59" (1/1) ... [2018-12-03 05:54:59,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7834880b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59, skipping insertion in model container [2018-12-03 05:54:59,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:54:59" (1/1) ... [2018-12-03 05:54:59,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 05:54:59,211 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 05:54:59,432 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:54:59,462 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 05:54:59,527 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 05:54:59,591 INFO L195 MainTranslator]: Completed translation [2018-12-03 05:54:59,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59 WrapperNode [2018-12-03 05:54:59,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 05:54:59,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 05:54:59,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 05:54:59,592 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 05:54:59,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59" (1/1) ... [2018-12-03 05:54:59,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59" (1/1) ... [2018-12-03 05:54:59,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 05:54:59,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 05:54:59,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 05:54:59,622 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 05:54:59,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59" (1/1) ... [2018-12-03 05:54:59,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59" (1/1) ... [2018-12-03 05:54:59,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59" (1/1) ... [2018-12-03 05:54:59,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59" (1/1) ... [2018-12-03 05:54:59,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59" (1/1) ... [2018-12-03 05:54:59,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59" (1/1) ... [2018-12-03 05:54:59,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59" (1/1) ... [2018-12-03 05:54:59,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 05:54:59,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 05:54:59,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 05:54:59,642 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 05:54:59,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/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 [2018-12-03 05:54:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-03 05:54:59,681 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2018-12-03 05:54:59,681 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2018-12-03 05:54:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2018-12-03 05:54:59,682 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2018-12-03 05:54:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 05:54:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-03 05:54:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-03 05:54:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-12-03 05:54:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 05:54:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-03 05:54:59,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 05:54:59,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 05:54:59,684 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-03 05:54:59,981 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 05:54:59,981 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-12-03 05:54:59,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:54:59 BoogieIcfgContainer [2018-12-03 05:54:59,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 05:54:59,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 05:54:59,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 05:54:59,984 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 05:54:59,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 05:54:59" (1/3) ... [2018-12-03 05:54:59,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e4a535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:54:59, skipping insertion in model container [2018-12-03 05:54:59,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:54:59" (2/3) ... [2018-12-03 05:54:59,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48e4a535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:54:59, skipping insertion in model container [2018-12-03 05:54:59,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:54:59" (3/3) ... [2018-12-03 05:54:59,986 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer_false-unreach-call.i [2018-12-03 05:55:00,008 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,009 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,009 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,009 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,009 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,009 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,009 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,009 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,010 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,010 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,010 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,010 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,010 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,010 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,010 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,010 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,011 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,011 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,011 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,011 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,011 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,011 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,011 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,011 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,011 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,012 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,012 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,012 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,012 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,012 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,012 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,012 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,012 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,012 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,013 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,013 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,013 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,013 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,013 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,013 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,013 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,013 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,013 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,014 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,014 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,014 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,014 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,014 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,014 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,014 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,014 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,014 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,015 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,015 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,015 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,015 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,015 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,015 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,015 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,015 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,016 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,016 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,016 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,016 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,016 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,016 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,016 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,016 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,017 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,017 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,017 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,017 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,017 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,017 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,017 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,018 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,018 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,018 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,018 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,018 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,018 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,018 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,018 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,018 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,018 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,019 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,019 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,019 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,019 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,019 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,019 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,019 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,019 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,019 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,019 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,020 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,020 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,020 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,020 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,020 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,020 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,020 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,020 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,020 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,021 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,021 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,021 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,021 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,021 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,021 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,021 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,021 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,021 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,022 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,022 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,022 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,022 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,022 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,022 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,022 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,022 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,022 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 05:55:00,032 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-03 05:55:00,032 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 05:55:00,037 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-03 05:55:00,046 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-03 05:55:00,060 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 05:55:00,061 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 05:55:00,061 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 05:55:00,061 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 05:55:00,061 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 05:55:00,061 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 05:55:00,061 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 05:55:00,061 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 05:55:00,061 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 05:55:00,068 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 126places, 134 transitions [2018-12-03 05:55:00,182 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5831 states. [2018-12-03 05:55:00,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5831 states. [2018-12-03 05:55:00,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-03 05:55:00,198 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:55:00,198 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] [2018-12-03 05:55:00,200 INFO L423 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:55:00,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:55:00,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1875729070, now seen corresponding path program 1 times [2018-12-03 05:55:00,206 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:55:00,207 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/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 [2018-12-03 05:55:00,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:55:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:55:00,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:55:00,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:00,298 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 05:55:00,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:55:00,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 05:55:00,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 05:55:00,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 05:55:00,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:55:00,313 INFO L87 Difference]: Start difference. First operand 5831 states. Second operand 3 states. [2018-12-03 05:55:00,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:55:00,402 INFO L93 Difference]: Finished difference Result 8894 states and 23788 transitions. [2018-12-03 05:55:00,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 05:55:00,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-12-03 05:55:00,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:55:00,437 INFO L225 Difference]: With dead ends: 8894 [2018-12-03 05:55:00,437 INFO L226 Difference]: Without dead ends: 8786 [2018-12-03 05:55:00,438 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:55:00,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8786 states. [2018-12-03 05:55:00,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8786 to 7505. [2018-12-03 05:55:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7505 states. [2018-12-03 05:55:00,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 20265 transitions. [2018-12-03 05:55:00,626 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 20265 transitions. Word has length 45 [2018-12-03 05:55:00,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:55:00,626 INFO L480 AbstractCegarLoop]: Abstraction has 7505 states and 20265 transitions. [2018-12-03 05:55:00,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 05:55:00,626 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 20265 transitions. [2018-12-03 05:55:00,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-03 05:55:00,629 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:55:00,629 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] [2018-12-03 05:55:00,629 INFO L423 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:55:00,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:55:00,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1217283586, now seen corresponding path program 1 times [2018-12-03 05:55:00,630 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:55:00,630 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/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 [2018-12-03 05:55:00,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:55:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:55:00,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:55:00,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:00,690 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 05:55:00,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:55:00,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 05:55:00,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 05:55:00,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 05:55:00,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:55:00,693 INFO L87 Difference]: Start difference. First operand 7505 states and 20265 transitions. Second operand 3 states. [2018-12-03 05:55:00,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:55:00,750 INFO L93 Difference]: Finished difference Result 7610 states and 20262 transitions. [2018-12-03 05:55:00,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 05:55:00,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-12-03 05:55:00,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:55:00,767 INFO L225 Difference]: With dead ends: 7610 [2018-12-03 05:55:00,767 INFO L226 Difference]: Without dead ends: 7469 [2018-12-03 05:55:00,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:55:00,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7469 states. [2018-12-03 05:55:00,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7469 to 7049. [2018-12-03 05:55:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7049 states. [2018-12-03 05:55:00,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7049 states to 7049 states and 18921 transitions. [2018-12-03 05:55:00,885 INFO L78 Accepts]: Start accepts. Automaton has 7049 states and 18921 transitions. Word has length 48 [2018-12-03 05:55:00,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:55:00,886 INFO L480 AbstractCegarLoop]: Abstraction has 7049 states and 18921 transitions. [2018-12-03 05:55:00,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 05:55:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 7049 states and 18921 transitions. [2018-12-03 05:55:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-03 05:55:00,887 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:55:00,888 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:55:00,888 INFO L423 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:55:00,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:55:00,888 INFO L82 PathProgramCache]: Analyzing trace with hash -89099366, now seen corresponding path program 1 times [2018-12-03 05:55:00,888 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:55:00,888 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/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 [2018-12-03 05:55:00,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:55:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:55:00,932 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:55:00,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:00,952 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 05:55:00,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:55:00,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 05:55:00,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 05:55:00,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 05:55:00,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 05:55:00,953 INFO L87 Difference]: Start difference. First operand 7049 states and 18921 transitions. Second operand 4 states. [2018-12-03 05:55:01,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:55:01,004 INFO L93 Difference]: Finished difference Result 10046 states and 26925 transitions. [2018-12-03 05:55:01,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 05:55:01,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2018-12-03 05:55:01,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:55:01,025 INFO L225 Difference]: With dead ends: 10046 [2018-12-03 05:55:01,025 INFO L226 Difference]: Without dead ends: 10046 [2018-12-03 05:55:01,025 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 05:55:01,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10046 states. [2018-12-03 05:55:01,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10046 to 7331. [2018-12-03 05:55:01,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7331 states. [2018-12-03 05:55:01,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7331 states to 7331 states and 19689 transitions. [2018-12-03 05:55:01,130 INFO L78 Accepts]: Start accepts. Automaton has 7331 states and 19689 transitions. Word has length 53 [2018-12-03 05:55:01,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:55:01,130 INFO L480 AbstractCegarLoop]: Abstraction has 7331 states and 19689 transitions. [2018-12-03 05:55:01,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 05:55:01,130 INFO L276 IsEmpty]: Start isEmpty. Operand 7331 states and 19689 transitions. [2018-12-03 05:55:01,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-12-03 05:55:01,134 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:55:01,134 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:55:01,134 INFO L423 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:55:01,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:55:01,134 INFO L82 PathProgramCache]: Analyzing trace with hash 689452142, now seen corresponding path program 1 times [2018-12-03 05:55:01,134 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:55:01,134 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/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 [2018-12-03 05:55:01,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:55:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:55:01,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:55:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:01,230 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:55:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:01,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:55:01,276 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 05:55:01,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:55:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:55:01,314 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:55:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:01,323 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:55:01,338 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:01,353 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-03 05:55:01,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2018-12-03 05:55:01,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 05:55:01,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 05:55:01,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-03 05:55:01,354 INFO L87 Difference]: Start difference. First operand 7331 states and 19689 transitions. Second operand 8 states. [2018-12-03 05:55:01,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:55:01,577 INFO L93 Difference]: Finished difference Result 22577 states and 60749 transitions. [2018-12-03 05:55:01,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-03 05:55:01,578 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2018-12-03 05:55:01,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:55:01,614 INFO L225 Difference]: With dead ends: 22577 [2018-12-03 05:55:01,614 INFO L226 Difference]: Without dead ends: 22577 [2018-12-03 05:55:01,614 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-12-03 05:55:01,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22577 states. [2018-12-03 05:55:01,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22577 to 18215. [2018-12-03 05:55:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18215 states. [2018-12-03 05:55:01,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18215 states to 18215 states and 49684 transitions. [2018-12-03 05:55:01,931 INFO L78 Accepts]: Start accepts. Automaton has 18215 states and 49684 transitions. Word has length 75 [2018-12-03 05:55:01,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:55:01,932 INFO L480 AbstractCegarLoop]: Abstraction has 18215 states and 49684 transitions. [2018-12-03 05:55:01,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 05:55:01,932 INFO L276 IsEmpty]: Start isEmpty. Operand 18215 states and 49684 transitions. [2018-12-03 05:55:01,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-03 05:55:01,936 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:55:01,936 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:55:01,936 INFO L423 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:55:01,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:55:01,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1292791580, now seen corresponding path program 1 times [2018-12-03 05:55:01,937 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:55:01,937 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 05:55:01,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:55:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:55:02,005 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:55:02,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:02,045 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 05:55:02,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:55:02,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 05:55:02,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 05:55:02,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 05:55:02,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 05:55:02,047 INFO L87 Difference]: Start difference. First operand 18215 states and 49684 transitions. Second operand 7 states. [2018-12-03 05:55:02,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:55:02,201 INFO L93 Difference]: Finished difference Result 21092 states and 57259 transitions. [2018-12-03 05:55:02,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-03 05:55:02,201 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2018-12-03 05:55:02,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:55:02,234 INFO L225 Difference]: With dead ends: 21092 [2018-12-03 05:55:02,234 INFO L226 Difference]: Without dead ends: 21092 [2018-12-03 05:55:02,234 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-12-03 05:55:02,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21092 states. [2018-12-03 05:55:02,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21092 to 18962. [2018-12-03 05:55:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18962 states. [2018-12-03 05:55:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18962 states to 18962 states and 51559 transitions. [2018-12-03 05:55:02,432 INFO L78 Accepts]: Start accepts. Automaton has 18962 states and 51559 transitions. Word has length 78 [2018-12-03 05:55:02,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:55:02,433 INFO L480 AbstractCegarLoop]: Abstraction has 18962 states and 51559 transitions. [2018-12-03 05:55:02,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 05:55:02,433 INFO L276 IsEmpty]: Start isEmpty. Operand 18962 states and 51559 transitions. [2018-12-03 05:55:02,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-12-03 05:55:02,437 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:55:02,438 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:55:02,438 INFO L423 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:55:02,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:55:02,438 INFO L82 PathProgramCache]: Analyzing trace with hash -875496614, now seen corresponding path program 1 times [2018-12-03 05:55:02,438 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:55:02,438 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 05:55:02,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:55:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:55:02,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:55:02,535 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 11 treesize of output 8 [2018-12-03 05:55:02,537 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 8 treesize of output 7 [2018-12-03 05:55:02,537 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 05:55:02,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 05:55:02,541 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 05:55:02,541 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-12-03 05:55:02,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:02,549 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 05:55:02,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:55:02,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 05:55:02,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 05:55:02,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 05:55:02,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:55:02,552 INFO L87 Difference]: Start difference. First operand 18962 states and 51559 transitions. Second operand 3 states. [2018-12-03 05:55:02,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:55:02,580 INFO L93 Difference]: Finished difference Result 9161 states and 23576 transitions. [2018-12-03 05:55:02,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 05:55:02,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2018-12-03 05:55:02,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:55:02,588 INFO L225 Difference]: With dead ends: 9161 [2018-12-03 05:55:02,588 INFO L226 Difference]: Without dead ends: 9161 [2018-12-03 05:55:02,589 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 05:55:02,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9161 states. [2018-12-03 05:55:02,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9161 to 7520. [2018-12-03 05:55:02,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7520 states. [2018-12-03 05:55:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7520 states to 7520 states and 19216 transitions. [2018-12-03 05:55:02,662 INFO L78 Accepts]: Start accepts. Automaton has 7520 states and 19216 transitions. Word has length 87 [2018-12-03 05:55:02,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:55:02,663 INFO L480 AbstractCegarLoop]: Abstraction has 7520 states and 19216 transitions. [2018-12-03 05:55:02,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 05:55:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 7520 states and 19216 transitions. [2018-12-03 05:55:02,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-03 05:55:02,666 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:55:02,666 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:55:02,667 INFO L423 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:55:02,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:55:02,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1317459886, now seen corresponding path program 1 times [2018-12-03 05:55:02,667 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:55:02,667 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 05:55:02,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:55:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:55:02,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:55:02,883 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 15 treesize of output 12 [2018-12-03 05:55:02,885 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 12 treesize of output 11 [2018-12-03 05:55:02,885 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 05:55:02,888 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 05:55:02,898 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 05:55:02,898 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-12-03 05:55:03,271 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 15 treesize of output 11 [2018-12-03 05:55:03,276 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 11 treesize of output 3 [2018-12-03 05:55:03,276 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 05:55:03,281 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 05:55:03,286 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 05:55:03,287 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-03 05:55:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:03,478 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 05:55:03,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 05:55:03,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-12-03 05:55:03,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-12-03 05:55:03,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-12-03 05:55:03,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2018-12-03 05:55:03,481 INFO L87 Difference]: Start difference. First operand 7520 states and 19216 transitions. Second operand 22 states. [2018-12-03 05:55:07,851 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2018-12-03 05:55:08,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:55:08,615 INFO L93 Difference]: Finished difference Result 16703 states and 42637 transitions. [2018-12-03 05:55:08,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-12-03 05:55:08,615 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 88 [2018-12-03 05:55:08,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:55:08,629 INFO L225 Difference]: With dead ends: 16703 [2018-12-03 05:55:08,629 INFO L226 Difference]: Without dead ends: 16703 [2018-12-03 05:55:08,629 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=442, Invalid=2314, Unknown=0, NotChecked=0, Total=2756 [2018-12-03 05:55:08,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16703 states. [2018-12-03 05:55:08,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16703 to 9317. [2018-12-03 05:55:08,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9317 states. [2018-12-03 05:55:08,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9317 states to 9317 states and 24008 transitions. [2018-12-03 05:55:08,762 INFO L78 Accepts]: Start accepts. Automaton has 9317 states and 24008 transitions. Word has length 88 [2018-12-03 05:55:08,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:55:08,762 INFO L480 AbstractCegarLoop]: Abstraction has 9317 states and 24008 transitions. [2018-12-03 05:55:08,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-12-03 05:55:08,762 INFO L276 IsEmpty]: Start isEmpty. Operand 9317 states and 24008 transitions. [2018-12-03 05:55:08,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-12-03 05:55:08,766 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:55:08,766 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:55:08,767 INFO L423 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:55:08,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:55:08,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1288430236, now seen corresponding path program 1 times [2018-12-03 05:55:08,767 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:55:08,767 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 05:55:08,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:55:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:55:08,818 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:55:08,859 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:08,859 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:55:08,929 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:08,931 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 05:55:08,931 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 05:55:08,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:55:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 05:55:08,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 05:55:08,970 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:08,971 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 05:55:08,984 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 05:55:09,000 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-03 05:55:09,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9] total 16 [2018-12-03 05:55:09,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-03 05:55:09,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-03 05:55:09,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-12-03 05:55:09,001 INFO L87 Difference]: Start difference. First operand 9317 states and 24008 transitions. Second operand 16 states. [2018-12-03 05:55:09,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 05:55:09,408 INFO L93 Difference]: Finished difference Result 16151 states and 41008 transitions. [2018-12-03 05:55:09,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-12-03 05:55:09,408 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 109 [2018-12-03 05:55:09,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 05:55:09,420 INFO L225 Difference]: With dead ends: 16151 [2018-12-03 05:55:09,420 INFO L226 Difference]: Without dead ends: 16151 [2018-12-03 05:55:09,421 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=269, Invalid=1063, Unknown=0, NotChecked=0, Total=1332 [2018-12-03 05:55:09,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16151 states. [2018-12-03 05:55:09,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16151 to 11972. [2018-12-03 05:55:09,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11972 states. [2018-12-03 05:55:09,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11972 states to 11972 states and 30985 transitions. [2018-12-03 05:55:09,536 INFO L78 Accepts]: Start accepts. Automaton has 11972 states and 30985 transitions. Word has length 109 [2018-12-03 05:55:09,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 05:55:09,536 INFO L480 AbstractCegarLoop]: Abstraction has 11972 states and 30985 transitions. [2018-12-03 05:55:09,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-03 05:55:09,536 INFO L276 IsEmpty]: Start isEmpty. Operand 11972 states and 30985 transitions. [2018-12-03 05:55:09,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-12-03 05:55:09,541 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 05:55:09,542 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 05:55:09,542 INFO L423 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 05:55:09,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 05:55:09,542 INFO L82 PathProgramCache]: Analyzing trace with hash 185506686, now seen corresponding path program 1 times [2018-12-03 05:55:09,542 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 05:55:09,542 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 05:55:09,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 05:55:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 05:55:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 05:55:09,973 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 05:55:10,042 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-03 05:55:10,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 05:55:10 BasicIcfg [2018-12-03 05:55:10,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 05:55:10,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 05:55:10,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 05:55:10,044 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 05:55:10,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:54:59" (3/4) ... [2018-12-03 05:55:10,046 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-03 05:55:10,128 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2aacd029-b96a-4a2a-99ac-e94f4bb5ca07/bin-2019/utaipan/witness.graphml [2018-12-03 05:55:10,129 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 05:55:10,129 INFO L168 Benchmark]: Toolchain (without parser) took 10950.28 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 510.7 MB). Free memory was 939.3 MB in the beginning and 845.5 MB in the end (delta: 93.9 MB). Peak memory consumption was 604.5 MB. Max. memory is 11.5 GB. [2018-12-03 05:55:10,130 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-03 05:55:10,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -103.8 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2018-12-03 05:55:10,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:55:10,131 INFO L168 Benchmark]: Boogie Preprocessor took 19.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 05:55:10,131 INFO L168 Benchmark]: RCFGBuilder took 339.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-12-03 05:55:10,131 INFO L168 Benchmark]: TraceAbstraction took 10061.74 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 411.6 MB). Free memory was 1.0 GB in the beginning and 872.1 MB in the end (delta: 129.8 MB). Peak memory consumption was 541.3 MB. Max. memory is 11.5 GB. [2018-12-03 05:55:10,132 INFO L168 Benchmark]: Witness Printer took 84.36 ms. Allocated memory is still 1.5 GB. Free memory was 872.1 MB in the beginning and 845.5 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-12-03 05:55:10,134 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 411.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -103.8 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 339.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10061.74 ms. Allocated memory was 1.1 GB in the beginning and 1.5 GB in the end (delta: 411.6 MB). Free memory was 1.0 GB in the beginning and 872.1 MB in the end (delta: 129.8 MB). Peak memory consumption was 541.3 MB. Max. memory is 11.5 GB. * Witness Printer took 84.36 ms. Allocated memory is still 1.5 GB. Free memory was 872.1 MB in the beginning and 845.5 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 919]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L914] -1 static int top=0; VAL [top=0] [L915] -1 static unsigned int arr[(400)]; VAL [arr={11:0}, top=0] [L916] -1 pthread_mutex_t m; VAL [arr={11:0}, m={2:0}, top=0] [L917] -1 _Bool flag=(0); VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L998] -1 pthread_t id1, id2; VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L1000] FCALL, FORK -1 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L1001] FCALL, FORK -1 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L983] 0 int i; VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L984] 0 i=0 VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L967] 1 int i; VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L984] COND TRUE 0 i<(400) VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L968] 1 unsigned int tmp; VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L969] 1 i=0 VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L969] COND TRUE 1 i<(400) VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L972] 1 tmp = __VERIFIER_nondet_uint() VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L939] COND FALSE 1 !(top==(400)) VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L931] 1 return top; VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L946] 1 stack[get_top()] = x VAL [arr={11:0}, flag=0, m={2:0}, top=0] [L923] 1 top++ VAL [arr={11:0}, flag=0, m={2:0}, top=1] [L949] 1 return 0; VAL [arr={11:0}, flag=0, m={2:0}, top=1] [L974] COND FALSE 1 !(push(arr,tmp)==(-1)) VAL [arr={11:0}, flag=0, m={2:0}, top=1] [L976] 1 flag=(1) VAL [arr={11:0}, flag=1, m={2:0}, top=1] [L987] COND TRUE 0 \read(flag) VAL [arr={11:0}, flag=1, m={2:0}, top=1] [L931] 0 return top; VAL [arr={11:0}, flag=1, m={2:0}, top=1] [L953] COND FALSE 0 !(get_top()==0) VAL [arr={11:0}, flag=1, m={2:0}, top=1] [L927] 0 top-- VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L931] 0 return top; VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L961] EXPR 0 stack[get_top()] VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L961] 0 return stack[get_top()]; VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L989] COND FALSE 0 !(!(pop(arr)!=(-2))) VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L984] 0 i++ VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L984] COND TRUE 0 i<(400) VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L987] COND TRUE 0 \read(flag) VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L931] 0 return top; VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L953] COND TRUE 0 get_top()==0 VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L956] 0 return (-2); VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L989] COND TRUE 0 !(pop(arr)!=(-2)) VAL [arr={11:0}, flag=1, m={2:0}, top=0] [L919] 0 __VERIFIER_error() VAL [arr={11:0}, flag=1, m={2:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 4 error locations. UNSAFE Result, 9.9s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 6.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1901 SDtfs, 3349 SDslu, 11782 SDs, 0 SdLazy, 2349 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1185 GetRequests, 1071 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18962occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 24114 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 877 NumberOfCodeBlocks, 877 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1121 ConstructedInterpolants, 0 QuantifiedInterpolants, 403380 SizeOfPredicates, 57 NumberOfNonLiveVariables, 1235 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 8/164 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...