./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe014_pso.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_bc2417e0-8ffc-4a99-8a68-e1359c4246be/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe014_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/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 e2a345af5d6f13ead3ee6626526882fdf8003804 ................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:42:36,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:42:36,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:42:36,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:42:36,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:42:36,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:42:36,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:42:36,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:42:36,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:42:36,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:42:36,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:42:36,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:42:36,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:42:36,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:42:36,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:42:36,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:42:36,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:42:36,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:42:36,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:42:36,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:42:36,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:42:36,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:42:36,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:42:36,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:42:36,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:42:36,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:42:36,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:42:36,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:42:36,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:42:36,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:42:36,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:42:36,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:42:36,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:42:36,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:42:36,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:42:36,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:42:36,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:42:36,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:42:36,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:42:36,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:42:36,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:42:36,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:42:36,248 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:42:36,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:42:36,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:42:36,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:42:36,249 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:42:36,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:42:36,250 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:42:36,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:42:36,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:42:36,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:42:36,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:42:36,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:42:36,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:42:36,252 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:42:36,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:42:36,252 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:42:36,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:42:36,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:42:36,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:42:36,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:42:36,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:42:36,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:42:36,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:42:36,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:42:36,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:42:36,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:42:36,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:42:36,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:42:36,255 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_bc2417e0-8ffc-4a99-8a68-e1359c4246be/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 -> e2a345af5d6f13ead3ee6626526882fdf8003804 [2019-11-15 22:42:36,280 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:42:36,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:42:36,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:42:36,294 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:42:36,294 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:42:36,295 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe014_pso.oepc.i [2019-11-15 22:42:36,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/bin/uautomizer/data/460be6cf2/222d5967a21c48a498224b76095da030/FLAG3d032178c [2019-11-15 22:42:36,769 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:42:36,769 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc.i [2019-11-15 22:42:36,785 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/bin/uautomizer/data/460be6cf2/222d5967a21c48a498224b76095da030/FLAG3d032178c [2019-11-15 22:42:37,106 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/bin/uautomizer/data/460be6cf2/222d5967a21c48a498224b76095da030 [2019-11-15 22:42:37,108 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:42:37,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:42:37,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:42:37,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:42:37,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:42:37,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:42:37" (1/1) ... [2019-11-15 22:42:37,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ef51e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37, skipping insertion in model container [2019-11-15 22:42:37,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:42:37" (1/1) ... [2019-11-15 22:42:37,124 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:42:37,167 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:42:37,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:42:37,525 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:42:37,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:42:37,665 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:42:37,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37 WrapperNode [2019-11-15 22:42:37,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:42:37,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:42:37,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:42:37,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:42:37,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37" (1/1) ... [2019-11-15 22:42:37,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37" (1/1) ... [2019-11-15 22:42:37,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:42:37,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:42:37,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:42:37,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:42:37,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37" (1/1) ... [2019-11-15 22:42:37,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37" (1/1) ... [2019-11-15 22:42:37,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37" (1/1) ... [2019-11-15 22:42:37,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37" (1/1) ... [2019-11-15 22:42:37,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37" (1/1) ... [2019-11-15 22:42:37,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37" (1/1) ... [2019-11-15 22:42:37,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37" (1/1) ... [2019-11-15 22:42:37,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:42:37,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:42:37,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:42:37,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:42:37,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/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 22:42:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:42:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 22:42:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:42:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:42:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 22:42:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 22:42:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 22:42:37,854 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 22:42:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-15 22:42:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-15 22:42:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 22:42:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:42:37,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:42:37,857 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 22:42:38,170 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:42:38,171 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 22:42:38,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:42:38 BoogieIcfgContainer [2019-11-15 22:42:38,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:42:38,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:42:38,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:42:38,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:42:38,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:42:37" (1/3) ... [2019-11-15 22:42:38,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641b6603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:42:38, skipping insertion in model container [2019-11-15 22:42:38,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:42:37" (2/3) ... [2019-11-15 22:42:38,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641b6603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:42:38, skipping insertion in model container [2019-11-15 22:42:38,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:42:38" (3/3) ... [2019-11-15 22:42:38,179 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc.i [2019-11-15 22:42:38,208 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,209 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,209 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,209 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,209 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,209 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,210 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,210 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,210 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,210 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,211 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,211 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,211 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,211 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,212 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,212 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,212 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,212 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:42:38,221 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 22:42:38,221 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:42:38,228 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:42:38,238 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:42:38,254 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:42:38,255 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:42:38,255 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:42:38,255 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:42:38,255 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:42:38,255 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:42:38,256 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:42:38,256 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:42:38,264 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 50 transitions [2019-11-15 22:42:38,343 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-15 22:42:38,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-15 22:42:38,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 22:42:38,359 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:42:38,360 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 22:42:38,362 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:42:38,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:42:38,366 INFO L82 PathProgramCache]: Analyzing trace with hash 720223975, now seen corresponding path program 1 times [2019-11-15 22:42:38,374 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:42:38,374 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315541727] [2019-11-15 22:42:38,374 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:42:38,374 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:42:38,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:42:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:42:38,665 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 22:42:38,666 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315541727] [2019-11-15 22:42:38,666 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:42:38,667 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:42:38,667 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265793396] [2019-11-15 22:42:38,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:42:38,671 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:42:38,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:42:38,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:42:38,686 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-15 22:42:38,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:42:38,799 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-15 22:42:38,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:42:38,801 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-15 22:42:38,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:42:38,826 INFO L225 Difference]: With dead ends: 1294 [2019-11-15 22:42:38,827 INFO L226 Difference]: Without dead ends: 600 [2019-11-15 22:42:38,828 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 22:42:38,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-15 22:42:38,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-15 22:42:38,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-15 22:42:38,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-15 22:42:38,927 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-15 22:42:38,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:42:38,928 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-15 22:42:38,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:42:38,929 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-15 22:42:38,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 22:42:38,936 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:42:38,936 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 22:42:38,937 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:42:38,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:42:38,937 INFO L82 PathProgramCache]: Analyzing trace with hash 850051549, now seen corresponding path program 1 times [2019-11-15 22:42:38,937 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:42:38,938 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709985429] [2019-11-15 22:42:38,938 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:42:38,938 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:42:38,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:42:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:42:39,083 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 22:42:39,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709985429] [2019-11-15 22:42:39,084 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:42:39,084 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 22:42:39,084 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967551077] [2019-11-15 22:42:39,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:42:39,085 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:42:39,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:42:39,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:42:39,086 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-15 22:42:39,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:42:39,170 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-15 22:42:39,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:42:39,171 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-15 22:42:39,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:42:39,177 INFO L225 Difference]: With dead ends: 600 [2019-11-15 22:42:39,177 INFO L226 Difference]: Without dead ends: 537 [2019-11-15 22:42:39,178 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 22:42:39,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-15 22:42:39,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-15 22:42:39,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-15 22:42:39,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-15 22:42:39,207 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-15 22:42:39,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:42:39,208 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-15 22:42:39,208 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:42:39,208 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-15 22:42:39,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 22:42:39,210 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:42:39,210 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 22:42:39,210 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:42:39,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:42:39,210 INFO L82 PathProgramCache]: Analyzing trace with hash 760810605, now seen corresponding path program 1 times [2019-11-15 22:42:39,210 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:42:39,210 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492107012] [2019-11-15 22:42:39,211 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:42:39,211 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:42:39,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:42:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:42:39,350 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 22:42:39,350 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492107012] [2019-11-15 22:42:39,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:42:39,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 22:42:39,351 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641356329] [2019-11-15 22:42:39,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:42:39,351 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:42:39,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:42:39,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:42:39,352 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-15 22:42:39,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:42:39,505 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-15 22:42:39,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:42:39,518 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-15 22:42:39,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:42:39,521 INFO L225 Difference]: With dead ends: 402 [2019-11-15 22:42:39,521 INFO L226 Difference]: Without dead ends: 348 [2019-11-15 22:42:39,522 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 22:42:39,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-15 22:42:39,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-15 22:42:39,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-15 22:42:39,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-15 22:42:39,548 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-15 22:42:39,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:42:39,549 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-15 22:42:39,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:42:39,549 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-15 22:42:39,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 22:42:39,550 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:42:39,551 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, 1] [2019-11-15 22:42:39,551 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:42:39,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:42:39,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1355844928, now seen corresponding path program 1 times [2019-11-15 22:42:39,552 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:42:39,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290103880] [2019-11-15 22:42:39,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:42:39,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:42:39,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:42:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:42:39,744 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 22:42:39,745 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290103880] [2019-11-15 22:42:39,745 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:42:39,745 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 22:42:39,745 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612350005] [2019-11-15 22:42:39,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:42:39,746 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:42:39,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:42:39,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:42:39,747 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 8 states. [2019-11-15 22:42:40,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:42:40,014 INFO L93 Difference]: Finished difference Result 681 states and 1853 transitions. [2019-11-15 22:42:40,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-15 22:42:40,015 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-15 22:42:40,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:42:40,018 INFO L225 Difference]: With dead ends: 681 [2019-11-15 22:42:40,018 INFO L226 Difference]: Without dead ends: 252 [2019-11-15 22:42:40,018 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-11-15 22:42:40,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-11-15 22:42:40,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2019-11-15 22:42:40,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-11-15 22:42:40,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 671 transitions. [2019-11-15 22:42:40,028 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 671 transitions. Word has length 33 [2019-11-15 22:42:40,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:42:40,029 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 671 transitions. [2019-11-15 22:42:40,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:42:40,029 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 671 transitions. [2019-11-15 22:42:40,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 22:42:40,030 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:42:40,031 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, 1] [2019-11-15 22:42:40,031 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:42:40,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:42:40,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1526745216, now seen corresponding path program 2 times [2019-11-15 22:42:40,032 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:42:40,032 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431657495] [2019-11-15 22:42:40,032 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:42:40,032 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:42:40,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:42:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:42:40,230 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 22:42:40,231 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431657495] [2019-11-15 22:42:40,231 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:42:40,231 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 22:42:40,231 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321102214] [2019-11-15 22:42:40,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:42:40,232 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:42:40,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:42:40,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:42:40,233 INFO L87 Difference]: Start difference. First operand 252 states and 671 transitions. Second operand 8 states. [2019-11-15 22:42:40,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:42:40,350 INFO L93 Difference]: Finished difference Result 198 states and 509 transitions. [2019-11-15 22:42:40,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 22:42:40,350 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-15 22:42:40,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:42:40,351 INFO L225 Difference]: With dead ends: 198 [2019-11-15 22:42:40,351 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:42:40,352 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-15 22:42:40,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:42:40,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:42:40,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:42:40,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:42:40,352 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-15 22:42:40,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:42:40,353 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:42:40,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:42:40,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:42:40,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:42:40,356 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 22:42:40,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:42:40 BasicIcfg [2019-11-15 22:42:40,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:42:40,360 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:42:40,360 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:42:40,361 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:42:40,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:42:38" (3/4) ... [2019-11-15 22:42:40,364 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:42:40,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 22:42:40,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 22:42:40,379 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-15 22:42:40,385 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 22:42:40,386 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 22:42:40,427 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bc2417e0-8ffc-4a99-8a68-e1359c4246be/bin/uautomizer/witness.graphml [2019-11-15 22:42:40,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:42:40,429 INFO L168 Benchmark]: Toolchain (without parser) took 3319.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 939.4 MB in the beginning and 893.5 MB in the end (delta: 45.8 MB). Peak memory consumption was 191.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:42:40,430 INFO L168 Benchmark]: CDTParser took 0.21 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 22:42:40,430 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:42:40,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:42:40,431 INFO L168 Benchmark]: Boogie Preprocessor took 53.79 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 22:42:40,432 INFO L168 Benchmark]: RCFGBuilder took 380.05 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 22:42:40,432 INFO L168 Benchmark]: TraceAbstraction took 2186.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 893.5 MB in the end (delta: 194.4 MB). Peak memory consumption was 194.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:42:40,433 INFO L168 Benchmark]: Witness Printer took 67.25 ms. Allocated memory is still 1.2 GB. Free memory is still 893.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:42:40,435 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 556.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.79 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 380.05 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 2186.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 893.5 MB in the end (delta: 194.4 MB). Peak memory consumption was 194.4 MB. Max. memory is 11.5 GB. * Witness Printer took 67.25 ms. Allocated memory is still 1.2 GB. Free memory is still 893.5 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, 65 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 218 SDtfs, 358 SDslu, 549 SDs, 0 SdLazy, 92 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 0.6s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 15822 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...