./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/19_time_var_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/19_time_var_mutex.i -s /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/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 b6e5b05d1d8a90ddac5eb7cbebfd54f127d9dc56 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:26:36,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:36,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:36,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:36,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:36,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:36,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:36,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:36,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:36,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:36,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:36,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:36,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:36,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:36,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:36,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:36,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:36,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:36,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:36,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:36,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:36,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:36,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:36,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:36,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:36,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:36,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:36,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:36,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:36,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:36,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:36,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:36,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:36,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:36,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:36,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:36,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:36,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:36,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:36,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:36,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:36,796 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:26:36,807 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:36,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:36,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:36,809 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:36,809 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:36,809 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:36,809 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:36,809 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:36,809 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:36,810 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:36,810 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:36,810 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:36,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:36,811 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:36,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:36,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:36,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:36,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:36,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:36,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:36,812 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:36,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:36,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:36,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:36,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:36,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:36,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:36,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:36,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:36,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:36,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:36,814 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:36,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:36,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:36,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:36,815 INFO L138 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_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/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 -> b6e5b05d1d8a90ddac5eb7cbebfd54f127d9dc56 [2019-10-22 11:26:36,838 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:36,851 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:36,855 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:36,857 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:36,857 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:36,858 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/utaipan/../../sv-benchmarks/c/pthread-ext/19_time_var_mutex.i [2019-10-22 11:26:36,912 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/utaipan/data/00dfd520e/fcbe766e64914da4b68a3d75e2eb68b3/FLAG074dc7353 [2019-10-22 11:26:37,354 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:37,354 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/sv-benchmarks/c/pthread-ext/19_time_var_mutex.i [2019-10-22 11:26:37,364 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/utaipan/data/00dfd520e/fcbe766e64914da4b68a3d75e2eb68b3/FLAG074dc7353 [2019-10-22 11:26:37,375 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/utaipan/data/00dfd520e/fcbe766e64914da4b68a3d75e2eb68b3 [2019-10-22 11:26:37,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:37,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:37,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:37,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:37,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:37,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:37" (1/1) ... [2019-10-22 11:26:37,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8785b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37, skipping insertion in model container [2019-10-22 11:26:37,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:37" (1/1) ... [2019-10-22 11:26:37,393 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:37,431 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:37,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:37,757 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:37,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:37,836 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:37,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37 WrapperNode [2019-10-22 11:26:37,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:37,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:37,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:37,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:37,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37" (1/1) ... [2019-10-22 11:26:37,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37" (1/1) ... [2019-10-22 11:26:37,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:37,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:37,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:37,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:37,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37" (1/1) ... [2019-10-22 11:26:37,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37" (1/1) ... [2019-10-22 11:26:37,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37" (1/1) ... [2019-10-22 11:26:37,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37" (1/1) ... [2019-10-22 11:26:37,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37" (1/1) ... [2019-10-22 11:26:37,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37" (1/1) ... [2019-10-22 11:26:37,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37" (1/1) ... [2019-10-22 11:26:37,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:37,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:37,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:37,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:37,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/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 [2019-10-22 11:26:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:26:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-10-22 11:26:37,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-10-22 11:26:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:26:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:26:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:26:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:26:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:37,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:37,993 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 11:26:38,097 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-10-22 11:26:38,099 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2019-10-22 11:26:38,099 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-10-22 11:26:38,101 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2019-10-22 11:26:38,295 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2019-10-22 11:26:38,296 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2019-10-22 11:26:38,394 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:38,394 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 11:26:38,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:38 BoogieIcfgContainer [2019-10-22 11:26:38,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:38,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:38,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:38,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:38,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:37" (1/3) ... [2019-10-22 11:26:38,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9ad9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:38, skipping insertion in model container [2019-10-22 11:26:38,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:37" (2/3) ... [2019-10-22 11:26:38,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9ad9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:38, skipping insertion in model container [2019-10-22 11:26:38,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:38" (3/3) ... [2019-10-22 11:26:38,404 INFO L109 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2019-10-22 11:26:38,454 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,455 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,455 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,455 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,455 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,459 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,459 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,459 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,459 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,460 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,460 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,460 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,460 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,461 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,461 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,461 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,461 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,462 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,462 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,462 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,462 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,463 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,463 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,463 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,464 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,466 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 11:26:38,471 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 11:26:38,471 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:38,480 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 11:26:38,494 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 11:26:38,518 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:38,518 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:26:38,518 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:38,518 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:38,518 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:38,518 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:38,518 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:38,519 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:38,531 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 48 transitions [2019-10-22 11:26:38,567 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 254 states. [2019-10-22 11:26:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2019-10-22 11:26:38,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 11:26:38,578 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:38,579 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:38,581 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:38,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:38,589 INFO L82 PathProgramCache]: Analyzing trace with hash 2058462238, now seen corresponding path program 1 times [2019-10-22 11:26:38,596 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:38,596 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754463613] [2019-10-22 11:26:38,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:38,597 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:38,597 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:38,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:38,789 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754463613] [2019-10-22 11:26:38,790 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:38,790 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:38,790 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572971115] [2019-10-22 11:26:38,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:38,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:38,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:38,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:38,816 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2019-10-22 11:26:38,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:38,849 INFO L93 Difference]: Finished difference Result 254 states and 474 transitions. [2019-10-22 11:26:38,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:38,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 11:26:38,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:38,867 INFO L225 Difference]: With dead ends: 254 [2019-10-22 11:26:38,868 INFO L226 Difference]: Without dead ends: 214 [2019-10-22 11:26:38,869 INFO L600 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 [2019-10-22 11:26:38,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2019-10-22 11:26:38,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2019-10-22 11:26:38,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2019-10-22 11:26:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 390 transitions. [2019-10-22 11:26:38,940 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 390 transitions. Word has length 19 [2019-10-22 11:26:38,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:38,941 INFO L462 AbstractCegarLoop]: Abstraction has 214 states and 390 transitions. [2019-10-22 11:26:38,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:38,941 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 390 transitions. [2019-10-22 11:26:38,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 11:26:38,942 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:38,943 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:26:38,943 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:38,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:38,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1827295107, now seen corresponding path program 1 times [2019-10-22 11:26:38,943 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:38,944 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503381094] [2019-10-22 11:26:38,944 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:38,944 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:38,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:39,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:39,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503381094] [2019-10-22 11:26:39,046 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:39,046 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:39,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930536408] [2019-10-22 11:26:39,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:39,047 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:39,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:39,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:39,048 INFO L87 Difference]: Start difference. First operand 214 states and 390 transitions. Second operand 3 states. [2019-10-22 11:26:39,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:39,075 INFO L93 Difference]: Finished difference Result 225 states and 391 transitions. [2019-10-22 11:26:39,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:39,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-22 11:26:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:39,077 INFO L225 Difference]: With dead ends: 225 [2019-10-22 11:26:39,077 INFO L226 Difference]: Without dead ends: 165 [2019-10-22 11:26:39,078 INFO L600 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 [2019-10-22 11:26:39,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-10-22 11:26:39,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 153. [2019-10-22 11:26:39,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-10-22 11:26:39,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 259 transitions. [2019-10-22 11:26:39,094 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 259 transitions. Word has length 21 [2019-10-22 11:26:39,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:39,095 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 259 transitions. [2019-10-22 11:26:39,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:39,095 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 259 transitions. [2019-10-22 11:26:39,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 11:26:39,096 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:39,096 INFO L380 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] [2019-10-22 11:26:39,097 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:39,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:39,097 INFO L82 PathProgramCache]: Analyzing trace with hash -65983192, now seen corresponding path program 1 times [2019-10-22 11:26:39,098 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:39,098 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101435055] [2019-10-22 11:26:39,098 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:39,098 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:39,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:39,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:39,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101435055] [2019-10-22 11:26:39,135 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:39,135 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:39,135 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213489762] [2019-10-22 11:26:39,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:39,136 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:39,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:39,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:39,136 INFO L87 Difference]: Start difference. First operand 153 states and 259 transitions. Second operand 3 states. [2019-10-22 11:26:39,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:39,152 INFO L93 Difference]: Finished difference Result 141 states and 229 transitions. [2019-10-22 11:26:39,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:39,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-10-22 11:26:39,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:39,154 INFO L225 Difference]: With dead ends: 141 [2019-10-22 11:26:39,154 INFO L226 Difference]: Without dead ends: 109 [2019-10-22 11:26:39,154 INFO L600 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 [2019-10-22 11:26:39,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-10-22 11:26:39,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-10-22 11:26:39,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-10-22 11:26:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 170 transitions. [2019-10-22 11:26:39,169 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 170 transitions. Word has length 23 [2019-10-22 11:26:39,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:39,170 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 170 transitions. [2019-10-22 11:26:39,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:39,170 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 170 transitions. [2019-10-22 11:26:39,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:26:39,171 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:39,171 INFO L380 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] [2019-10-22 11:26:39,171 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:39,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:39,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1828187716, now seen corresponding path program 1 times [2019-10-22 11:26:39,173 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:39,173 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11674669] [2019-10-22 11:26:39,173 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:39,174 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:39,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:39,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:39,254 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11674669] [2019-10-22 11:26:39,254 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:39,254 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:26:39,254 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966511069] [2019-10-22 11:26:39,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:26:39,255 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:39,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:26:39,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:26:39,255 INFO L87 Difference]: Start difference. First operand 109 states and 170 transitions. Second operand 3 states. [2019-10-22 11:26:39,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:39,261 INFO L93 Difference]: Finished difference Result 109 states and 167 transitions. [2019-10-22 11:26:39,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:39,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2019-10-22 11:26:39,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:39,263 INFO L225 Difference]: With dead ends: 109 [2019-10-22 11:26:39,263 INFO L226 Difference]: Without dead ends: 91 [2019-10-22 11:26:39,263 INFO L600 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 [2019-10-22 11:26:39,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-10-22 11:26:39,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-10-22 11:26:39,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-10-22 11:26:39,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 134 transitions. [2019-10-22 11:26:39,270 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 134 transitions. Word has length 28 [2019-10-22 11:26:39,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:39,271 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 134 transitions. [2019-10-22 11:26:39,271 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:26:39,271 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 134 transitions. [2019-10-22 11:26:39,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-10-22 11:26:39,272 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:39,272 INFO L380 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] [2019-10-22 11:26:39,272 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:39,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:39,272 INFO L82 PathProgramCache]: Analyzing trace with hash 146340796, now seen corresponding path program 1 times [2019-10-22 11:26:39,273 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:39,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58210849] [2019-10-22 11:26:39,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:39,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:39,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:39,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:39,338 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58210849] [2019-10-22 11:26:39,338 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:39,339 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:26:39,339 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567252474] [2019-10-22 11:26:39,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:26:39,339 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:26:39,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:26:39,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:39,340 INFO L87 Difference]: Start difference. First operand 91 states and 134 transitions. Second operand 4 states. [2019-10-22 11:26:39,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:39,385 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2019-10-22 11:26:39,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:26:39,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2019-10-22 11:26:39,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:39,386 INFO L225 Difference]: With dead ends: 35 [2019-10-22 11:26:39,386 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:26:39,387 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:26:39,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:26:39,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:26:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:26:39,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:26:39,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2019-10-22 11:26:39,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:39,388 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:26:39,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:26:39,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:26:39,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:26:39,392 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 11:26:39,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:39 BasicIcfg [2019-10-22 11:26:39,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:39,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:39,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:39,394 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:39,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:38" (3/4) ... [2019-10-22 11:26:39,399 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:26:39,407 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-10-22 11:26:39,411 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 11:26:39,412 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:26:39,468 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_81805d9a-83ce-4424-8fa5-a5fe23cc6550/bin/utaipan/witness.graphml [2019-10-22 11:26:39,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:39,471 INFO L168 Benchmark]: Toolchain (without parser) took 2091.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 941.8 MB in the beginning and 1.0 GB in the end (delta: -76.3 MB). Peak memory consumption was 85.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:39,471 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:39,482 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:39,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.50 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:39,483 INFO L168 Benchmark]: Boogie Preprocessor took 35.59 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:39,483 INFO L168 Benchmark]: RCFGBuilder took 468.32 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:39,483 INFO L168 Benchmark]: TraceAbstraction took 997.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:39,484 INFO L168 Benchmark]: Witness Printer took 74.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:39,486 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 456.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 941.8 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.50 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.59 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 468.32 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 997.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. * Witness Printer took 74.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 708]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 699]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 3 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 228 SDtfs, 120 SDslu, 118 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 4442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...