./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/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 f6479f9b206fa2208c49f4d03eecf38709949298 ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 01:29:59,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:29:59,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:29:59,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:29:59,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:29:59,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:29:59,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:29:59,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:29:59,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:29:59,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:29:59,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:29:59,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:29:59,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:29:59,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:29:59,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:29:59,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:29:59,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:29:59,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:29:59,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:29:59,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:29:59,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:29:59,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:29:59,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:29:59,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:29:59,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:29:59,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:29:59,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:29:59,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:29:59,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:29:59,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:29:59,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:29:59,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:29:59,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:29:59,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:29:59,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:29:59,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:29:59,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:29:59,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:29:59,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:29:59,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:29:59,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:29:59,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 01:29:59,774 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:29:59,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:29:59,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:29:59,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:29:59,785 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:29:59,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:29:59,786 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:29:59,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:29:59,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:29:59,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:29:59,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:29:59,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:29:59,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:29:59,787 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:29:59,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:29:59,788 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:29:59,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:29:59,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:29:59,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:29:59,789 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:29:59,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:29:59,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:29:59,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:29:59,790 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:29:59,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:29:59,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:29:59,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:29:59,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:29:59,792 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_c4afa971-942d-4a72-b67e-612df6a38146/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 -> f6479f9b206fa2208c49f4d03eecf38709949298 [2019-11-20 01:29:59,932 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:29:59,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:29:59,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:29:59,951 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:29:59,951 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:29:59,956 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i [2019-11-20 01:30:00,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/bin/uautomizer/data/e9313a4af/47b45e04801a4466aae46f6020686ec0/FLAG195ab1b7b [2019-11-20 01:30:00,483 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:30:00,483 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/sv-benchmarks/c/pthread-wmm/safe010_tso.oepc.i [2019-11-20 01:30:00,499 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/bin/uautomizer/data/e9313a4af/47b45e04801a4466aae46f6020686ec0/FLAG195ab1b7b [2019-11-20 01:30:00,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/bin/uautomizer/data/e9313a4af/47b45e04801a4466aae46f6020686ec0 [2019-11-20 01:30:00,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:30:00,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:30:00,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:30:00,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:30:00,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:30:00,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:30:00" (1/1) ... [2019-11-20 01:30:00,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd987fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:00, skipping insertion in model container [2019-11-20 01:30:00,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:30:00" (1/1) ... [2019-11-20 01:30:00,866 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:30:00,914 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:30:01,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:30:01,274 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:30:01,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:30:01,381 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:30:01,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01 WrapperNode [2019-11-20 01:30:01,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:30:01,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:30:01,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:30:01,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:30:01,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01" (1/1) ... [2019-11-20 01:30:01,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01" (1/1) ... [2019-11-20 01:30:01,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:30:01,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:30:01,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:30:01,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:30:01,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01" (1/1) ... [2019-11-20 01:30:01,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01" (1/1) ... [2019-11-20 01:30:01,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01" (1/1) ... [2019-11-20 01:30:01,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01" (1/1) ... [2019-11-20 01:30:01,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01" (1/1) ... [2019-11-20 01:30:01,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01" (1/1) ... [2019-11-20 01:30:01,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01" (1/1) ... [2019-11-20 01:30:01,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:30:01,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:30:01,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:30:01,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:30:01,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/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 [2019-11-20 01:30:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 01:30:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 01:30:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:30:01,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:30:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 01:30:01,517 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 01:30:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 01:30:01,518 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 01:30:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 01:30:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:30:01,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:30:01,520 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 01:30:01,791 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:30:01,791 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 01:30:01,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:30:01 BoogieIcfgContainer [2019-11-20 01:30:01,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:30:01,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:30:01,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:30:01,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:30:01,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:30:00" (1/3) ... [2019-11-20 01:30:01,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f02b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:30:01, skipping insertion in model container [2019-11-20 01:30:01,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:30:01" (2/3) ... [2019-11-20 01:30:01,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f02b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:30:01, skipping insertion in model container [2019-11-20 01:30:01,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:30:01" (3/3) ... [2019-11-20 01:30:01,800 INFO L109 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2019-11-20 01:30:01,838 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,839 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,839 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,839 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,841 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,841 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,841 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,841 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,842 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,842 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,842 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,842 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,843 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,843 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,843 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,843 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,844 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,844 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,844 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,844 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,845 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,845 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,845 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,845 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,846 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,846 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,846 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,846 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,846 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,847 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,847 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,847 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 01:30:01,867 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 01:30:01,867 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:30:01,872 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 01:30:01,881 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 01:30:01,897 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:30:01,897 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:30:01,897 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:30:01,897 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:30:01,898 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:30:01,898 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:30:01,898 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:30:01,898 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:30:01,906 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 70 places, 56 transitions [2019-11-20 01:30:02,105 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2366 states. [2019-11-20 01:30:02,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states. [2019-11-20 01:30:02,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 01:30:02,138 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:30:02,139 INFO L410 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] [2019-11-20 01:30:02,139 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:30:02,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:30:02,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1207578092, now seen corresponding path program 1 times [2019-11-20 01:30:02,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:30:02,153 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745624451] [2019-11-20 01:30:02,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:30:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:30:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:30:02,509 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745624451] [2019-11-20 01:30:02,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:30:02,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:30:02,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615669262] [2019-11-20 01:30:02,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:30:02,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:30:02,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:30:02,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:30:02,526 INFO L87 Difference]: Start difference. First operand 2366 states. Second operand 5 states. [2019-11-20 01:30:02,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:30:02,686 INFO L93 Difference]: Finished difference Result 2375 states and 5560 transitions. [2019-11-20 01:30:02,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:30:02,688 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 01:30:02,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:30:02,711 INFO L225 Difference]: With dead ends: 2375 [2019-11-20 01:30:02,712 INFO L226 Difference]: Without dead ends: 1151 [2019-11-20 01:30:02,713 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 01:30:02,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2019-11-20 01:30:02,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 1151. [2019-11-20 01:30:02,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1151 states. [2019-11-20 01:30:02,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 2671 transitions. [2019-11-20 01:30:02,843 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 2671 transitions. Word has length 25 [2019-11-20 01:30:02,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:30:02,844 INFO L462 AbstractCegarLoop]: Abstraction has 1151 states and 2671 transitions. [2019-11-20 01:30:02,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:30:02,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 2671 transitions. [2019-11-20 01:30:02,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 01:30:02,847 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:30:02,847 INFO L410 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] [2019-11-20 01:30:02,847 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:30:02,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:30:02,848 INFO L82 PathProgramCache]: Analyzing trace with hash 961951, now seen corresponding path program 1 times [2019-11-20 01:30:02,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:30:02,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340476333] [2019-11-20 01:30:02,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:30:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:30:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:30:02,988 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340476333] [2019-11-20 01:30:02,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:30:02,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:30:02,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953607783] [2019-11-20 01:30:02,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:30:02,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:30:02,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:30:02,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:30:02,993 INFO L87 Difference]: Start difference. First operand 1151 states and 2671 transitions. Second operand 5 states. [2019-11-20 01:30:03,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:30:03,130 INFO L93 Difference]: Finished difference Result 908 states and 1915 transitions. [2019-11-20 01:30:03,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:30:03,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-20 01:30:03,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:30:03,143 INFO L225 Difference]: With dead ends: 908 [2019-11-20 01:30:03,144 INFO L226 Difference]: Without dead ends: 773 [2019-11-20 01:30:03,145 INFO L630 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 [2019-11-20 01:30:03,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2019-11-20 01:30:03,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 773. [2019-11-20 01:30:03,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 773 states. [2019-11-20 01:30:03,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1663 transitions. [2019-11-20 01:30:03,175 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1663 transitions. Word has length 26 [2019-11-20 01:30:03,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:30:03,175 INFO L462 AbstractCegarLoop]: Abstraction has 773 states and 1663 transitions. [2019-11-20 01:30:03,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:30:03,176 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1663 transitions. [2019-11-20 01:30:03,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 01:30:03,178 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:30:03,178 INFO L410 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] [2019-11-20 01:30:03,178 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:30:03,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:30:03,179 INFO L82 PathProgramCache]: Analyzing trace with hash -217597427, now seen corresponding path program 1 times [2019-11-20 01:30:03,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:30:03,180 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979597787] [2019-11-20 01:30:03,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:30:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:30:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:30:03,366 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979597787] [2019-11-20 01:30:03,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:30:03,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 01:30:03,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770992808] [2019-11-20 01:30:03,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 01:30:03,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:30:03,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 01:30:03,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 01:30:03,368 INFO L87 Difference]: Start difference. First operand 773 states and 1663 transitions. Second operand 6 states. [2019-11-20 01:30:03,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:30:03,501 INFO L93 Difference]: Finished difference Result 1259 states and 2716 transitions. [2019-11-20 01:30:03,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:30:03,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2019-11-20 01:30:03,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:30:03,507 INFO L225 Difference]: With dead ends: 1259 [2019-11-20 01:30:03,507 INFO L226 Difference]: Without dead ends: 710 [2019-11-20 01:30:03,507 INFO L630 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 [2019-11-20 01:30:03,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2019-11-20 01:30:03,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 710. [2019-11-20 01:30:03,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 710 states. [2019-11-20 01:30:03,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1519 transitions. [2019-11-20 01:30:03,531 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1519 transitions. Word has length 27 [2019-11-20 01:30:03,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:30:03,531 INFO L462 AbstractCegarLoop]: Abstraction has 710 states and 1519 transitions. [2019-11-20 01:30:03,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 01:30:03,532 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1519 transitions. [2019-11-20 01:30:03,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 01:30:03,534 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:30:03,534 INFO L410 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] [2019-11-20 01:30:03,534 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:30:03,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:30:03,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1325761213, now seen corresponding path program 2 times [2019-11-20 01:30:03,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:30:03,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268758234] [2019-11-20 01:30:03,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:30:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:30:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:30:03,725 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268758234] [2019-11-20 01:30:03,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:30:03,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 01:30:03,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932383541] [2019-11-20 01:30:03,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 01:30:03,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:30:03,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 01:30:03,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 01:30:03,727 INFO L87 Difference]: Start difference. First operand 710 states and 1519 transitions. Second operand 8 states. [2019-11-20 01:30:03,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:30:03,850 INFO L93 Difference]: Finished difference Result 548 states and 1141 transitions. [2019-11-20 01:30:03,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 01:30:03,850 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-11-20 01:30:03,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:30:03,851 INFO L225 Difference]: With dead ends: 548 [2019-11-20 01:30:03,851 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 01:30:03,851 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-20 01:30:03,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 01:30:03,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 01:30:03,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 01:30:03,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 01:30:03,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-11-20 01:30:03,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:30:03,852 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:30:03,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 01:30:03,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 01:30:03,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 01:30:03,857 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 01:30:03,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:30:03 BasicIcfg [2019-11-20 01:30:03,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:30:03,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:30:03,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:30:03,862 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:30:03,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:30:01" (3/4) ... [2019-11-20 01:30:03,867 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 01:30:03,873 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 01:30:03,874 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 01:30:03,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-20 01:30:03,904 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 01:30:03,904 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 01:30:03,952 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c4afa971-942d-4a72-b67e-612df6a38146/bin/uautomizer/witness.graphml [2019-11-20 01:30:03,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:30:03,954 INFO L168 Benchmark]: Toolchain (without parser) took 3102.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 943.4 MB in the beginning and 922.0 MB in the end (delta: 21.4 MB). Peak memory consumption was 193.9 MB. Max. memory is 11.5 GB. [2019-11-20 01:30:03,954 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:30:03,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:30:03,955 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.33 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. [2019-11-20 01:30:03,956 INFO L168 Benchmark]: Boogie Preprocessor took 22.70 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. [2019-11-20 01:30:03,956 INFO L168 Benchmark]: RCFGBuilder took 346.86 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:30:03,957 INFO L168 Benchmark]: TraceAbstraction took 2068.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.4 MB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 11.5 GB. [2019-11-20 01:30:03,957 INFO L168 Benchmark]: Witness Printer took 90.23 ms. Allocated memory is still 1.2 GB. Free memory was 927.4 MB in the beginning and 922.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:30:03,959 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 528.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -196.7 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.33 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 22.70 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 346.86 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2068.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.4 MB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 11.5 GB. * Witness Printer took 90.23 ms. Allocated memory is still 1.2 GB. Free memory was 927.4 MB in the beginning and 922.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. 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 9 procedures, 66 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 285 SDslu, 591 SDs, 0 SdLazy, 88 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2366occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 8331 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...