./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe031_tso.oepc.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/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe031_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b587afa57daf57a0495065851ba1ebf70e187f92 ................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:01:16,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:01:16,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:01:16,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:01:16,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:01:16,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:01:16,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:01:16,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:01:16,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:01:16,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:01:16,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:01:16,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:01:16,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:01:16,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:01:16,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:01:16,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:01:16,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:01:16,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:01:16,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:01:16,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:01:16,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:01:16,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:01:16,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:01:16,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:01:16,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:01:16,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:01:16,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:01:16,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:01:16,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:01:16,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:01:16,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:01:16,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:01:16,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:01:16,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:01:16,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:01:16,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:01:16,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:01:16,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:01:16,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:01:16,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:01:16,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:01:16,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:01:16,057 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:01:16,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:01:16,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:01:16,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:01:16,059 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:01:16,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:01:16,060 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:01:16,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:01:16,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:01:16,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:01:16,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:01:16,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:01:16,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:01:16,062 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:01:16,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:01:16,062 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:01:16,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:01:16,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:01:16,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:01:16,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:01:16,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:01:16,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:01:16,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:01:16,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:01:16,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:01:16,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:01:16,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:01:16,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:01:16,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b587afa57daf57a0495065851ba1ebf70e187f92 [2019-11-15 23:01:16,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:01:16,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:01:16,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:01:16,105 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:01:16,105 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:01:16,106 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe031_tso.oepc.i [2019-11-15 23:01:16,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/data/cb9c23292/044c8c3b447b43998703fa3af473868c/FLAGa30155604 [2019-11-15 23:01:16,644 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:01:16,648 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/sv-benchmarks/c/pthread-wmm/safe031_tso.oepc.i [2019-11-15 23:01:16,672 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/data/cb9c23292/044c8c3b447b43998703fa3af473868c/FLAGa30155604 [2019-11-15 23:01:17,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/data/cb9c23292/044c8c3b447b43998703fa3af473868c [2019-11-15 23:01:17,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:01:17,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:01:17,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:01:17,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:01:17,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:01:17,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:01:17" (1/1) ... [2019-11-15 23:01:17,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433af1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17, skipping insertion in model container [2019-11-15 23:01:17,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:01:17" (1/1) ... [2019-11-15 23:01:17,195 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:01:17,240 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:01:17,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:01:17,623 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:01:17,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:01:17,760 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:01:17,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17 WrapperNode [2019-11-15 23:01:17,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:01:17,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:01:17,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:01:17,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:01:17,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17" (1/1) ... [2019-11-15 23:01:17,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17" (1/1) ... [2019-11-15 23:01:17,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:01:17,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:01:17,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:01:17,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:01:17,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17" (1/1) ... [2019-11-15 23:01:17,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17" (1/1) ... [2019-11-15 23:01:17,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17" (1/1) ... [2019-11-15 23:01:17,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17" (1/1) ... [2019-11-15 23:01:17,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17" (1/1) ... [2019-11-15 23:01:17,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17" (1/1) ... [2019-11-15 23:01:17,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17" (1/1) ... [2019-11-15 23:01:17,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:01:17,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:01:17,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:01:17,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:01:17,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:01:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:01:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 23:01:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:01:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:01:17,938 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 23:01:17,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 23:01:17,938 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 23:01:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 23:01:17,939 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-15 23:01:17,939 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-15 23:01:17,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 23:01:17,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:01:17,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:01:17,941 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 23:01:18,280 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:01:18,280 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 23:01:18,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:01:18 BoogieIcfgContainer [2019-11-15 23:01:18,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:01:18,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:01:18,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:01:18,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:01:18,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:01:17" (1/3) ... [2019-11-15 23:01:18,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acfcbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:01:18, skipping insertion in model container [2019-11-15 23:01:18,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:01:17" (2/3) ... [2019-11-15 23:01:18,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7acfcbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:01:18, skipping insertion in model container [2019-11-15 23:01:18,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:01:18" (3/3) ... [2019-11-15 23:01:18,288 INFO L109 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2019-11-15 23:01:18,335 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,335 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,335 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,345 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,345 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,346 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,347 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,347 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,348 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,348 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,348 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,348 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,349 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,349 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,349 WARN L315 ript$VariableManager]: TermVariabe Thread2_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,349 WARN L315 ript$VariableManager]: TermVariabe Thread2_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,350 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,350 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:01:18,366 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 23:01:18,366 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:01:18,371 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:01:18,379 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:01:18,396 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:01:18,397 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:01:18,397 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:01:18,397 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:01:18,397 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:01:18,397 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:01:18,397 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:01:18,397 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:01:18,406 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 52 places, 49 transitions [2019-11-15 23:01:18,498 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1246 states. [2019-11-15 23:01:18,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states. [2019-11-15 23:01:18,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-15 23:01:18,524 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:01:18,524 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, 1] [2019-11-15 23:01:18,526 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:01:18,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:01:18,530 INFO L82 PathProgramCache]: Analyzing trace with hash -584957860, now seen corresponding path program 1 times [2019-11-15 23:01:18,535 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:01:18,535 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241499886] [2019-11-15 23:01:18,536 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:01:18,536 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:01:18,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:01:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:01:18,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:01:18,887 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241499886] [2019-11-15 23:01:18,887 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:01:18,888 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:01:18,888 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425379628] [2019-11-15 23:01:18,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:01:18,892 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:01:18,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:01:18,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:01:18,904 INFO L87 Difference]: Start difference. First operand 1246 states. Second operand 4 states. [2019-11-15 23:01:19,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:01:19,009 INFO L93 Difference]: Finished difference Result 1293 states and 3959 transitions. [2019-11-15 23:01:19,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:01:19,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-11-15 23:01:19,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:01:19,036 INFO L225 Difference]: With dead ends: 1293 [2019-11-15 23:01:19,037 INFO L226 Difference]: Without dead ends: 599 [2019-11-15 23:01:19,038 INFO L600 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 [2019-11-15 23:01:19,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2019-11-15 23:01:19,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2019-11-15 23:01:19,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-11-15 23:01:19,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1774 transitions. [2019-11-15 23:01:19,126 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1774 transitions. Word has length 29 [2019-11-15 23:01:19,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:01:19,127 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 1774 transitions. [2019-11-15 23:01:19,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:01:19,127 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1774 transitions. [2019-11-15 23:01:19,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 23:01:19,130 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:01:19,130 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, 1, 1] [2019-11-15 23:01:19,130 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:01:19,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:01:19,131 INFO L82 PathProgramCache]: Analyzing trace with hash -722615092, now seen corresponding path program 1 times [2019-11-15 23:01:19,131 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:01:19,131 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139650468] [2019-11-15 23:01:19,132 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:01:19,132 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:01:19,132 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:01:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:01:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:01:19,243 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139650468] [2019-11-15 23:01:19,243 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:01:19,243 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:01:19,244 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744276690] [2019-11-15 23:01:19,245 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:01:19,245 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:01:19,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:01:19,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:01:19,246 INFO L87 Difference]: Start difference. First operand 599 states and 1774 transitions. Second operand 5 states. [2019-11-15 23:01:19,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:01:19,345 INFO L93 Difference]: Finished difference Result 599 states and 1693 transitions. [2019-11-15 23:01:19,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:01:19,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-15 23:01:19,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:01:19,354 INFO L225 Difference]: With dead ends: 599 [2019-11-15 23:01:19,357 INFO L226 Difference]: Without dead ends: 536 [2019-11-15 23:01:19,359 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:01:19,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-11-15 23:01:19,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-11-15 23:01:19,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-11-15 23:01:19,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1543 transitions. [2019-11-15 23:01:19,389 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1543 transitions. Word has length 30 [2019-11-15 23:01:19,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:01:19,389 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 1543 transitions. [2019-11-15 23:01:19,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:01:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1543 transitions. [2019-11-15 23:01:19,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 23:01:19,391 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:01:19,392 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, 1, 1, 1] [2019-11-15 23:01:19,392 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:01:19,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:01:19,392 INFO L82 PathProgramCache]: Analyzing trace with hash -677431117, now seen corresponding path program 1 times [2019-11-15 23:01:19,393 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:01:19,393 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529487090] [2019-11-15 23:01:19,393 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:01:19,393 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:01:19,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:01:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:01:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:01:19,518 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529487090] [2019-11-15 23:01:19,519 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:01:19,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:01:19,519 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871648455] [2019-11-15 23:01:19,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:01:19,519 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:01:19,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:01:19,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:01:19,520 INFO L87 Difference]: Start difference. First operand 536 states and 1543 transitions. Second operand 6 states. [2019-11-15 23:01:19,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:01:19,623 INFO L93 Difference]: Finished difference Result 401 states and 1057 transitions. [2019-11-15 23:01:19,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:01:19,626 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-11-15 23:01:19,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:01:19,629 INFO L225 Difference]: With dead ends: 401 [2019-11-15 23:01:19,629 INFO L226 Difference]: Without dead ends: 347 [2019-11-15 23:01:19,630 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:01:19,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-11-15 23:01:19,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-11-15 23:01:19,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-11-15 23:01:19,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 913 transitions. [2019-11-15 23:01:19,655 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 913 transitions. Word has length 31 [2019-11-15 23:01:19,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:01:19,655 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 913 transitions. [2019-11-15 23:01:19,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:01:19,656 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 913 transitions. [2019-11-15 23:01:19,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 23:01:19,657 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:01:19,657 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, 1, 1, 1, 1] [2019-11-15 23:01:19,658 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:01:19,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:01:19,658 INFO L82 PathProgramCache]: Analyzing trace with hash 624859063, now seen corresponding path program 1 times [2019-11-15 23:01:19,658 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:01:19,658 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565991747] [2019-11-15 23:01:19,659 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:01:19,659 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:01:19,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:01:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:01:19,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:01:19,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565991747] [2019-11-15 23:01:19,788 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:01:19,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:01:19,788 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820198999] [2019-11-15 23:01:19,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:01:19,789 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:01:19,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:01:19,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:01:19,789 INFO L87 Difference]: Start difference. First operand 347 states and 913 transitions. Second operand 6 states. [2019-11-15 23:01:19,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:01:19,929 INFO L93 Difference]: Finished difference Result 563 states and 1498 transitions. [2019-11-15 23:01:19,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:01:19,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-15 23:01:19,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:01:19,932 INFO L225 Difference]: With dead ends: 563 [2019-11-15 23:01:19,932 INFO L226 Difference]: Without dead ends: 266 [2019-11-15 23:01:19,933 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:01:19,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-11-15 23:01:19,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2019-11-15 23:01:19,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-11-15 23:01:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 700 transitions. [2019-11-15 23:01:19,943 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 700 transitions. Word has length 32 [2019-11-15 23:01:19,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:01:19,944 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 700 transitions. [2019-11-15 23:01:19,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:01:19,944 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 700 transitions. [2019-11-15 23:01:19,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 23:01:19,945 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:01:19,945 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, 1, 1, 1, 1] [2019-11-15 23:01:19,946 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:01:19,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:01:19,946 INFO L82 PathProgramCache]: Analyzing trace with hash -272947607, now seen corresponding path program 2 times [2019-11-15 23:01:19,946 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:01:19,946 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628708819] [2019-11-15 23:01:19,947 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:01:19,947 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:01:19,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:01:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:01:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:01:20,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628708819] [2019-11-15 23:01:20,059 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:01:20,059 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:01:20,059 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621290885] [2019-11-15 23:01:20,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:01:20,060 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:01:20,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:01:20,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:01:20,061 INFO L87 Difference]: Start difference. First operand 266 states and 700 transitions. Second operand 7 states. [2019-11-15 23:01:20,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:01:20,180 INFO L93 Difference]: Finished difference Result 212 states and 538 transitions. [2019-11-15 23:01:20,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:01:20,180 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-11-15 23:01:20,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:01:20,181 INFO L225 Difference]: With dead ends: 212 [2019-11-15 23:01:20,181 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:01:20,181 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:01:20,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:01:20,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:01:20,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:01:20,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:01:20,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-11-15 23:01:20,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:01:20,183 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:01:20,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:01:20,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:01:20,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:01:20,186 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 23:01:20,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:01:20 BasicIcfg [2019-11-15 23:01:20,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:01:20,188 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:01:20,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:01:20,188 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:01:20,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:01:18" (3/4) ... [2019-11-15 23:01:20,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:01:20,200 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 23:01:20,201 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 23:01:20,209 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-15 23:01:20,213 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 23:01:20,214 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 23:01:20,270 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ae648095-761c-48f5-9fda-113a0402b88f/bin/uautomizer/witness.graphml [2019-11-15 23:01:20,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:01:20,273 INFO L168 Benchmark]: Toolchain (without parser) took 3091.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 940.7 MB in the beginning and 903.6 MB in the end (delta: 37.1 MB). Peak memory consumption was 175.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:01:20,273 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:01:20,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:01:20,274 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.25 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. [2019-11-15 23:01:20,274 INFO L168 Benchmark]: Boogie Preprocessor took 54.22 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. [2019-11-15 23:01:20,275 INFO L168 Benchmark]: RCFGBuilder took 410.39 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:01:20,275 INFO L168 Benchmark]: TraceAbstraction took 1905.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 903.6 MB in the end (delta: 172.8 MB). Peak memory consumption was 172.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:01:20,276 INFO L168 Benchmark]: Witness Printer took 82.75 ms. Allocated memory is still 1.2 GB. Free memory is still 903.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:01:20,282 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 580.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.25 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 54.22 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. * RCFGBuilder took 410.39 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1905.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 903.6 MB in the end (delta: 172.8 MB). Peak memory consumption was 172.8 MB. Max. memory is 11.5 GB. * Witness Printer took 82.75 ms. Allocated memory is still 1.2 GB. Free memory is still 903.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 64 locations, 1 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 228 SDtfs, 283 SDslu, 541 SDs, 0 SdLazy, 73 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 12075 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...