./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_pso.opt.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_043b984d-4400-4d27-99e7-3e255554c78c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/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 b79dddd7d9e2c4a1dea51534d81c18928c635387 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:50:22,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:50:22,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:50:22,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:50:22,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:50:22,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:50:22,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:50:22,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:50:22,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:50:22,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:50:22,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:50:22,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:50:22,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:50:22,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:50:22,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:50:22,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:50:22,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:50:22,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:50:22,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:50:22,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:50:22,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:50:22,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:50:22,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:50:22,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:50:22,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:50:22,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:50:22,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:50:22,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:50:22,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:50:22,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:50:22,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:50:22,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:50:22,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:50:22,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:50:22,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:50:22,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:50:22,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:50:22,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:50:22,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:50:22,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:50:22,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:50:22,740 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:50:22,764 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:50:22,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:50:22,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:50:22,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:50:22,775 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:50:22,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:50:22,775 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:50:22,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:50:22,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:50:22,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:50:22,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:50:22,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:50:22,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:50:22,778 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:50:22,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:50:22,778 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:50:22,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:50:22,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:50:22,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:50:22,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:50:22,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:50:22,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:50:22,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:50:22,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:50:22,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:50:22,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:50:22,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:50:22,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:50:22,782 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_043b984d-4400-4d27-99e7-3e255554c78c/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 -> b79dddd7d9e2c4a1dea51534d81c18928c635387 [2019-11-15 22:50:22,813 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:50:22,826 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:50:22,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:50:22,832 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:50:22,832 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:50:22,833 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe018_pso.opt.i [2019-11-15 22:50:22,898 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/bin/uautomizer/data/de6b9df59/e630f88d59de4434acda8e399ce9e0d2/FLAGe67df3178 [2019-11-15 22:50:23,437 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:50:23,438 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/sv-benchmarks/c/pthread-wmm/safe018_pso.opt.i [2019-11-15 22:50:23,452 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/bin/uautomizer/data/de6b9df59/e630f88d59de4434acda8e399ce9e0d2/FLAGe67df3178 [2019-11-15 22:50:23,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/bin/uautomizer/data/de6b9df59/e630f88d59de4434acda8e399ce9e0d2 [2019-11-15 22:50:23,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:50:23,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:50:23,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:50:23,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:50:23,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:50:23,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:50:23" (1/1) ... [2019-11-15 22:50:23,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e1101df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:23, skipping insertion in model container [2019-11-15 22:50:23,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:50:23" (1/1) ... [2019-11-15 22:50:23,922 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:50:23,980 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:50:24,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:50:24,344 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:50:24,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:50:24,445 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:50:24,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24 WrapperNode [2019-11-15 22:50:24,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:50:24,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:50:24,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:50:24,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:50:24,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24" (1/1) ... [2019-11-15 22:50:24,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24" (1/1) ... [2019-11-15 22:50:24,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:50:24,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:50:24,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:50:24,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:50:24,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24" (1/1) ... [2019-11-15 22:50:24,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24" (1/1) ... [2019-11-15 22:50:24,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24" (1/1) ... [2019-11-15 22:50:24,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24" (1/1) ... [2019-11-15 22:50:24,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24" (1/1) ... [2019-11-15 22:50:24,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24" (1/1) ... [2019-11-15 22:50:24,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24" (1/1) ... [2019-11-15 22:50:24,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:50:24,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:50:24,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:50:24,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:50:24,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/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 22:50:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:50:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 22:50:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:50:24,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:50:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 22:50:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 22:50:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 22:50:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 22:50:24,572 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-15 22:50:24,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-15 22:50:24,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 22:50:24,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:50:24,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:50:24,575 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 22:50:24,864 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:50:24,864 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 22:50:24,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:50:24 BoogieIcfgContainer [2019-11-15 22:50:24,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:50:24,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:50:24,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:50:24,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:50:24,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:50:23" (1/3) ... [2019-11-15 22:50:24,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7486bed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:50:24, skipping insertion in model container [2019-11-15 22:50:24,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:50:24" (2/3) ... [2019-11-15 22:50:24,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7486bed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:50:24, skipping insertion in model container [2019-11-15 22:50:24,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:50:24" (3/3) ... [2019-11-15 22:50:24,873 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_pso.opt.i [2019-11-15 22:50:24,902 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,903 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,903 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,903 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,904 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,904 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,904 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,904 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,905 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,905 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,905 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,905 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,906 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,906 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,906 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,906 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,907 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,907 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:50:24,922 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 22:50:24,922 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:50:24,929 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:50:24,938 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:50:24,954 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:50:24,955 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:50:24,955 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:50:24,955 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:50:24,955 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:50:24,955 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:50:24,955 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:50:24,956 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:50:24,966 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 50 transitions [2019-11-15 22:50:25,054 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-15 22:50:25,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-15 22:50:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 22:50:25,083 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:25,084 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 22:50:25,087 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:50:25,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:25,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1556438276, now seen corresponding path program 1 times [2019-11-15 22:50:25,098 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:25,098 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776264804] [2019-11-15 22:50:25,098 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:25,098 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:25,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:25,408 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 22:50:25,409 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776264804] [2019-11-15 22:50:25,410 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:25,410 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:50:25,410 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130560006] [2019-11-15 22:50:25,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:50:25,415 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:25,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:50:25,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:50:25,432 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-15 22:50:25,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:25,526 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-15 22:50:25,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:50:25,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-15 22:50:25,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:25,550 INFO L225 Difference]: With dead ends: 1294 [2019-11-15 22:50:25,550 INFO L226 Difference]: Without dead ends: 600 [2019-11-15 22:50:25,552 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 22:50:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-15 22:50:25,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-15 22:50:25,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-15 22:50:25,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-15 22:50:25,638 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-15 22:50:25,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:25,638 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-15 22:50:25,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:50:25,639 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-15 22:50:25,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 22:50:25,641 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:25,641 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 22:50:25,642 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:50:25,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:25,642 INFO L82 PathProgramCache]: Analyzing trace with hash 853802106, now seen corresponding path program 1 times [2019-11-15 22:50:25,642 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:25,643 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907877681] [2019-11-15 22:50:25,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:25,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:25,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:25,768 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 22:50:25,768 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907877681] [2019-11-15 22:50:25,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:25,769 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 22:50:25,769 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212688758] [2019-11-15 22:50:25,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:50:25,771 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:25,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:50:25,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:50:25,772 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-15 22:50:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:25,866 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-15 22:50:25,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:50:25,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-15 22:50:25,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:25,873 INFO L225 Difference]: With dead ends: 600 [2019-11-15 22:50:25,873 INFO L226 Difference]: Without dead ends: 537 [2019-11-15 22:50:25,874 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 22:50:25,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-15 22:50:25,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-15 22:50:25,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-15 22:50:25,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-15 22:50:25,905 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-15 22:50:25,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:25,906 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-15 22:50:25,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:50:25,906 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-15 22:50:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 22:50:25,908 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:25,908 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 22:50:25,910 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:50:25,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:25,910 INFO L82 PathProgramCache]: Analyzing trace with hash -872448980, now seen corresponding path program 1 times [2019-11-15 22:50:25,911 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:25,911 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347242399] [2019-11-15 22:50:25,911 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:25,911 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:25,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:26,061 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 22:50:26,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347242399] [2019-11-15 22:50:26,062 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:26,062 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 22:50:26,062 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555625368] [2019-11-15 22:50:26,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:50:26,062 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:26,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:50:26,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:50:26,063 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-15 22:50:26,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:26,183 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-15 22:50:26,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:50:26,187 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-15 22:50:26,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:26,190 INFO L225 Difference]: With dead ends: 402 [2019-11-15 22:50:26,190 INFO L226 Difference]: Without dead ends: 348 [2019-11-15 22:50:26,191 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:50:26,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-15 22:50:26,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-15 22:50:26,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-15 22:50:26,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-15 22:50:26,214 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-15 22:50:26,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:26,215 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-15 22:50:26,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:50:26,215 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-15 22:50:26,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 22:50:26,218 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:26,219 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 22:50:26,219 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:50:26,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:26,219 INFO L82 PathProgramCache]: Analyzing trace with hash 514878493, now seen corresponding path program 1 times [2019-11-15 22:50:26,220 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:26,220 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147040588] [2019-11-15 22:50:26,220 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:26,220 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:26,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:26,430 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 22:50:26,431 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147040588] [2019-11-15 22:50:26,431 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:26,431 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 22:50:26,431 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65974727] [2019-11-15 22:50:26,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 22:50:26,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:26,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 22:50:26,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:50:26,433 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 7 states. [2019-11-15 22:50:26,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:26,603 INFO L93 Difference]: Finished difference Result 528 states and 1415 transitions. [2019-11-15 22:50:26,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 22:50:26,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-15 22:50:26,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:26,606 INFO L225 Difference]: With dead ends: 528 [2019-11-15 22:50:26,607 INFO L226 Difference]: Without dead ends: 357 [2019-11-15 22:50:26,607 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-15 22:50:26,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-11-15 22:50:26,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 348. [2019-11-15 22:50:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-15 22:50:26,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 911 transitions. [2019-11-15 22:50:26,621 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 911 transitions. Word has length 33 [2019-11-15 22:50:26,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:26,621 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 911 transitions. [2019-11-15 22:50:26,622 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 22:50:26,622 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 911 transitions. [2019-11-15 22:50:26,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 22:50:26,624 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:26,625 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 22:50:26,625 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:50:26,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:26,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1719229001, now seen corresponding path program 2 times [2019-11-15 22:50:26,626 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:26,626 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228761853] [2019-11-15 22:50:26,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:26,626 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:26,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:26,835 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 22:50:26,836 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228761853] [2019-11-15 22:50:26,836 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:26,836 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 22:50:26,836 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074920154] [2019-11-15 22:50:26,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 22:50:26,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:26,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 22:50:26,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 22:50:26,838 INFO L87 Difference]: Start difference. First operand 348 states and 911 transitions. Second operand 8 states. [2019-11-15 22:50:26,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:26,974 INFO L93 Difference]: Finished difference Result 510 states and 1370 transitions. [2019-11-15 22:50:26,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:50:26,975 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-15 22:50:26,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:26,978 INFO L225 Difference]: With dead ends: 510 [2019-11-15 22:50:26,978 INFO L226 Difference]: Without dead ends: 276 [2019-11-15 22:50:26,978 INFO L600 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 [2019-11-15 22:50:26,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2019-11-15 22:50:26,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2019-11-15 22:50:26,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-11-15 22:50:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 725 transitions. [2019-11-15 22:50:26,991 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 725 transitions. Word has length 33 [2019-11-15 22:50:26,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:26,991 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 725 transitions. [2019-11-15 22:50:26,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 22:50:26,995 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 725 transitions. [2019-11-15 22:50:26,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 22:50:26,996 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:26,997 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 22:50:26,997 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:50:26,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:26,997 INFO L82 PathProgramCache]: Analyzing trace with hash 263293055, now seen corresponding path program 3 times [2019-11-15 22:50:26,998 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:26,998 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448569442] [2019-11-15 22:50:26,998 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:26,998 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:26,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:27,147 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 22:50:27,147 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448569442] [2019-11-15 22:50:27,147 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:27,147 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 22:50:27,147 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022539143] [2019-11-15 22:50:27,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 22:50:27,148 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:27,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 22:50:27,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:50:27,148 INFO L87 Difference]: Start difference. First operand 276 states and 725 transitions. Second operand 7 states. [2019-11-15 22:50:27,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:27,248 INFO L93 Difference]: Finished difference Result 447 states and 1205 transitions. [2019-11-15 22:50:27,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:50:27,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-15 22:50:27,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:27,251 INFO L225 Difference]: With dead ends: 447 [2019-11-15 22:50:27,251 INFO L226 Difference]: Without dead ends: 264 [2019-11-15 22:50:27,252 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-15 22:50:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-11-15 22:50:27,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2019-11-15 22:50:27,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-11-15 22:50:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 695 transitions. [2019-11-15 22:50:27,260 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 695 transitions. Word has length 33 [2019-11-15 22:50:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:27,260 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 695 transitions. [2019-11-15 22:50:27,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 22:50:27,260 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 695 transitions. [2019-11-15 22:50:27,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 22:50:27,261 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:50:27,261 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 22:50:27,262 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:50:27,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:50:27,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1959544971, now seen corresponding path program 4 times [2019-11-15 22:50:27,262 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:50:27,262 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115766353] [2019-11-15 22:50:27,263 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:27,263 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:50:27,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:50:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:50:27,374 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 22:50:27,374 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115766353] [2019-11-15 22:50:27,374 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:50:27,374 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 22:50:27,374 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188560908] [2019-11-15 22:50:27,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 22:50:27,375 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:50:27,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 22:50:27,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:50:27,375 INFO L87 Difference]: Start difference. First operand 264 states and 695 transitions. Second operand 7 states. [2019-11-15 22:50:27,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:50:27,524 INFO L93 Difference]: Finished difference Result 210 states and 533 transitions. [2019-11-15 22:50:27,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 22:50:27,524 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-15 22:50:27,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:50:27,525 INFO L225 Difference]: With dead ends: 210 [2019-11-15 22:50:27,525 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:50:27,525 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-15 22:50:27,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:50:27,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:50:27,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:50:27,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:50:27,526 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-15 22:50:27,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:50:27,526 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:50:27,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 22:50:27,526 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:50:27,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:50:27,529 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 22:50:27,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:50:27 BasicIcfg [2019-11-15 22:50:27,531 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:50:27,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:50:27,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:50:27,532 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:50:27,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:50:24" (3/4) ... [2019-11-15 22:50:27,537 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:50:27,543 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 22:50:27,544 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 22:50:27,544 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-15 22:50:27,553 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 22:50:27,554 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 22:50:27,593 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_043b984d-4400-4d27-99e7-3e255554c78c/bin/uautomizer/witness.graphml [2019-11-15 22:50:27,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:50:27,595 INFO L168 Benchmark]: Toolchain (without parser) took 3688.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -131.8 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:50:27,595 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-11-15 22:50:27,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:50:27,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.79 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 22:50:27,597 INFO L168 Benchmark]: Boogie Preprocessor took 24.90 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:50:27,597 INFO L168 Benchmark]: RCFGBuilder took 352.12 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:50:27,598 INFO L168 Benchmark]: TraceAbstraction took 2664.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:50:27,598 INFO L168 Benchmark]: Witness Printer took 61.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:50:27,601 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 539.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.79 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. * Boogie Preprocessor took 24.90 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 352.12 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2664.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Witness Printer took 61.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * 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: 2.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 330 SDtfs, 461 SDslu, 901 SDs, 0 SdLazy, 149 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s 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, 7 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 21838 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...