./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe006_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/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/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 19f705692fede17a8405325d349bd12eff80ee16 ........................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:36,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:36,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:36,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:36,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:36,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:36,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:36,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:36,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:36,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:36,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:36,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:36,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:36,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:36,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:36,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:36,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:36,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:36,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:36,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:36,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:36,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:36,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:36,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:36,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:36,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:36,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:36,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:36,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:36,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:36,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:36,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:36,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:36,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:36,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:36,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:36,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:36,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:36,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:36,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:36,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:36,952 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:56:36,963 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:36,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:36,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:36,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:36,964 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:36,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:36,965 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:56:36,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:36,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:56:36,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:36,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:56:36,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:56:36,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:56:36,966 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:56:36,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:36,966 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:36,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:56:36,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:36,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:36,967 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:56:36,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:56:36,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:56:36,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:36,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:56:36,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:56:36,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:36,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:56:36,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:56:36,969 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/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/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 -> 19f705692fede17a8405325d349bd12eff80ee16 [2019-10-22 08:56:36,994 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:37,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:37,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:37,009 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:37,009 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:37,010 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i [2019-10-22 08:56:37,057 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/bin/uautomizer/data/fa13652e5/5d0cbe8b0eca4044a703018a191009af/FLAG51e760452 [2019-10-22 08:56:37,495 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:37,496 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/sv-benchmarks/c/pthread-wmm/safe006_pso.opt.i [2019-10-22 08:56:37,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/bin/uautomizer/data/fa13652e5/5d0cbe8b0eca4044a703018a191009af/FLAG51e760452 [2019-10-22 08:56:37,519 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/bin/uautomizer/data/fa13652e5/5d0cbe8b0eca4044a703018a191009af [2019-10-22 08:56:37,521 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:37,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:37,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:37,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:37,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:37,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:37" (1/1) ... [2019-10-22 08:56:37,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e562b88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:37, skipping insertion in model container [2019-10-22 08:56:37,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:37" (1/1) ... [2019-10-22 08:56:37,537 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:37,572 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:37,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:37,931 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:37,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:38,039 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:38,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38 WrapperNode [2019-10-22 08:56:38,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:38,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:38,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:38,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:38,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38" (1/1) ... [2019-10-22 08:56:38,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38" (1/1) ... [2019-10-22 08:56:38,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:38,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:38,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:38,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:38,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38" (1/1) ... [2019-10-22 08:56:38,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38" (1/1) ... [2019-10-22 08:56:38,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38" (1/1) ... [2019-10-22 08:56:38,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38" (1/1) ... [2019-10-22 08:56:38,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38" (1/1) ... [2019-10-22 08:56:38,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38" (1/1) ... [2019-10-22 08:56:38,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38" (1/1) ... [2019-10-22 08:56:38,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:38,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:38,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:38,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:38,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/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 [2019-10-22 08:56:38,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:56:38,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:56:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:56:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:56:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:56:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:56:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:56:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:56:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:56:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:38,170 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:56:38,529 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:38,529 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:56:38,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:38 BoogieIcfgContainer [2019-10-22 08:56:38,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:38,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:56:38,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:56:38,535 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:56:38,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:56:37" (1/3) ... [2019-10-22 08:56:38,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f4f707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:38, skipping insertion in model container [2019-10-22 08:56:38,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:38" (2/3) ... [2019-10-22 08:56:38,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f4f707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:56:38, skipping insertion in model container [2019-10-22 08:56:38,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:38" (3/3) ... [2019-10-22 08:56:38,539 INFO L109 eAbstractionObserver]: Analyzing ICFG safe006_pso.opt.i [2019-10-22 08:56:38,578 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,580 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,580 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,580 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,580 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,581 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,581 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,581 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,582 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,582 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,582 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,583 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,583 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,583 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,583 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,583 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,583 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,584 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,584 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,584 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:56:38,595 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:56:38,595 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:56:38,604 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:56:38,617 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:56:38,634 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:56:38,635 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:56:38,635 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:56:38,635 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:38,635 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:38,635 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:56:38,635 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:38,635 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:56:38,643 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 42 transitions [2019-10-22 08:56:38,682 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 434 states. [2019-10-22 08:56:38,684 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states. [2019-10-22 08:56:38,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:56:38,693 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:38,694 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] [2019-10-22 08:56:38,696 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:38,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:38,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1726528678, now seen corresponding path program 1 times [2019-10-22 08:56:38,709 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:38,709 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914717387] [2019-10-22 08:56:38,709 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:38,710 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:38,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:38,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:38,947 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914717387] [2019-10-22 08:56:38,948 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:38,948 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:56:38,948 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134358930] [2019-10-22 08:56:38,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:38,952 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:38,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:38,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:38,971 INFO L87 Difference]: Start difference. First operand 434 states. Second operand 4 states. [2019-10-22 08:56:39,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:39,047 INFO L93 Difference]: Finished difference Result 444 states and 1061 transitions. [2019-10-22 08:56:39,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:56:39,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-10-22 08:56:39,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:39,060 INFO L225 Difference]: With dead ends: 444 [2019-10-22 08:56:39,060 INFO L226 Difference]: Without dead ends: 227 [2019-10-22 08:56:39,062 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 [2019-10-22 08:56:39,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-10-22 08:56:39,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2019-10-22 08:56:39,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-10-22 08:56:39,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 524 transitions. [2019-10-22 08:56:39,117 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 524 transitions. Word has length 25 [2019-10-22 08:56:39,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:39,117 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 524 transitions. [2019-10-22 08:56:39,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:39,117 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 524 transitions. [2019-10-22 08:56:39,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:56:39,119 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:39,119 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] [2019-10-22 08:56:39,119 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:39,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:39,119 INFO L82 PathProgramCache]: Analyzing trace with hash 2060627448, now seen corresponding path program 1 times [2019-10-22 08:56:39,120 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:39,120 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736553244] [2019-10-22 08:56:39,120 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:39,120 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:39,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:39,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:39,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736553244] [2019-10-22 08:56:39,210 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:39,210 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:56:39,210 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503089914] [2019-10-22 08:56:39,212 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:56:39,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:39,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:56:39,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:56:39,212 INFO L87 Difference]: Start difference. First operand 227 states and 524 transitions. Second operand 5 states. [2019-10-22 08:56:39,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:39,260 INFO L93 Difference]: Finished difference Result 195 states and 416 transitions. [2019-10-22 08:56:39,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:56:39,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 08:56:39,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:39,262 INFO L225 Difference]: With dead ends: 195 [2019-10-22 08:56:39,262 INFO L226 Difference]: Without dead ends: 171 [2019-10-22 08:56:39,263 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 [2019-10-22 08:56:39,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-10-22 08:56:39,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2019-10-22 08:56:39,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-10-22 08:56:39,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 370 transitions. [2019-10-22 08:56:39,282 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 370 transitions. Word has length 26 [2019-10-22 08:56:39,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:39,282 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 370 transitions. [2019-10-22 08:56:39,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:56:39,282 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 370 transitions. [2019-10-22 08:56:39,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:56:39,283 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:39,284 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] [2019-10-22 08:56:39,284 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:39,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:39,284 INFO L82 PathProgramCache]: Analyzing trace with hash 822076318, now seen corresponding path program 1 times [2019-10-22 08:56:39,284 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:39,285 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529875437] [2019-10-22 08:56:39,285 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:39,285 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:39,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:39,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:39,470 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529875437] [2019-10-22 08:56:39,470 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:39,471 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:56:39,471 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145486654] [2019-10-22 08:56:39,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:56:39,471 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:39,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:56:39,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:56:39,472 INFO L87 Difference]: Start difference. First operand 171 states and 370 transitions. Second operand 8 states. [2019-10-22 08:56:39,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:39,567 INFO L93 Difference]: Finished difference Result 267 states and 594 transitions. [2019-10-22 08:56:39,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 08:56:39,568 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-10-22 08:56:39,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:39,569 INFO L225 Difference]: With dead ends: 267 [2019-10-22 08:56:39,569 INFO L226 Difference]: Without dead ends: 167 [2019-10-22 08:56:39,570 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 [2019-10-22 08:56:39,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-10-22 08:56:39,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-10-22 08:56:39,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-10-22 08:56:39,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 362 transitions. [2019-10-22 08:56:39,579 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 362 transitions. Word has length 27 [2019-10-22 08:56:39,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:39,580 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 362 transitions. [2019-10-22 08:56:39,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:56:39,580 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 362 transitions. [2019-10-22 08:56:39,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 08:56:39,581 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:39,581 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] [2019-10-22 08:56:39,581 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:39,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:39,582 INFO L82 PathProgramCache]: Analyzing trace with hash 2138233622, now seen corresponding path program 2 times [2019-10-22 08:56:39,582 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:39,582 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408810680] [2019-10-22 08:56:39,582 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:39,582 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:39,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:39,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408810680] [2019-10-22 08:56:39,687 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:39,687 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:56:39,687 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840777888] [2019-10-22 08:56:39,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:56:39,688 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:39,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:56:39,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:56:39,688 INFO L87 Difference]: Start difference. First operand 167 states and 362 transitions. Second operand 8 states. [2019-10-22 08:56:39,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:39,764 INFO L93 Difference]: Finished difference Result 135 states and 282 transitions. [2019-10-22 08:56:39,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:39,764 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-10-22 08:56:39,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:39,765 INFO L225 Difference]: With dead ends: 135 [2019-10-22 08:56:39,765 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:56:39,765 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 [2019-10-22 08:56:39,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:56:39,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:56:39,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:56:39,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:56:39,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-10-22 08:56:39,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:39,766 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:39,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:56:39,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:56:39,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:56:39,770 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:56:39,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:39 BasicIcfg [2019-10-22 08:56:39,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:39,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:39,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:39,773 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:39,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:38" (3/4) ... [2019-10-22 08:56:39,777 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:56:39,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:56:39,784 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:56:39,788 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 08:56:39,788 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:56:39,837 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_37e58525-9a22-49c0-8b0d-0cba8be83f45/bin/uautomizer/witness.graphml [2019-10-22 08:56:39,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:39,839 INFO L168 Benchmark]: Toolchain (without parser) took 2316.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 939.4 MB in the beginning and 950.0 MB in the end (delta: -10.7 MB). Peak memory consumption was 119.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:39,839 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-10-22 08:56:39,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:39,840 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.87 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. [2019-10-22 08:56:39,840 INFO L168 Benchmark]: Boogie Preprocessor took 21.95 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. [2019-10-22 08:56:39,842 INFO L168 Benchmark]: RCFGBuilder took 428.12 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:39,843 INFO L168 Benchmark]: TraceAbstraction took 1240.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.4 MB in the end (delta: 113.7 MB). Peak memory consumption was 113.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:39,843 INFO L168 Benchmark]: Witness Printer took 64.69 ms. Allocated memory is still 1.2 GB. Free memory was 955.4 MB in the beginning and 950.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:39,846 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 516.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -157.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.87 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 21.95 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 428.12 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1240.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.4 MB in the end (delta: 113.7 MB). Peak memory consumption was 113.7 MB. Max. memory is 11.5 GB. * Witness Printer took 64.69 ms. Allocated memory is still 1.2 GB. Free memory was 955.4 MB in the beginning and 950.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 160 SDtfs, 188 SDslu, 408 SDs, 0 SdLazy, 62 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=434occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 8353 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...