./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe035_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_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/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 aece26e5d1f68aa631dcae2b6891115af551a945 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:57:12,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:12,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:12,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:12,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:12,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:12,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:12,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:12,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:12,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:12,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:12,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:12,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:12,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:12,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:12,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:12,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:12,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:12,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:12,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:12,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:12,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:12,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:12,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:12,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:12,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:12,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:12,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:12,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:12,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:12,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:12,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:12,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:12,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:12,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:12,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:12,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:12,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:12,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:12,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:12,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:12,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:57:12,126 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:12,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:12,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:12,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:12,127 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:12,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:12,128 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:12,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:12,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:12,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:12,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:12,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:12,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:12,129 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:12,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:12,129 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:12,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:12,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:12,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:12,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:12,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:12,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:12,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:12,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:12,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:12,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:12,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:12,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:12,131 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_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/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 -> aece26e5d1f68aa631dcae2b6891115af551a945 [2019-10-22 08:57:12,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:12,176 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:12,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:12,180 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:12,180 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:12,181 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i [2019-10-22 08:57:12,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/bin/uautomizer/data/ef0a70d7e/4be73d5435d84a2d97362415b5361cdc/FLAG43453960e [2019-10-22 08:57:12,666 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:12,667 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i [2019-10-22 08:57:12,678 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/bin/uautomizer/data/ef0a70d7e/4be73d5435d84a2d97362415b5361cdc/FLAG43453960e [2019-10-22 08:57:12,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/bin/uautomizer/data/ef0a70d7e/4be73d5435d84a2d97362415b5361cdc [2019-10-22 08:57:12,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:12,692 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:12,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:12,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:12,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:12,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:12" (1/1) ... [2019-10-22 08:57:12,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d72dbde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:12, skipping insertion in model container [2019-10-22 08:57:12,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:12" (1/1) ... [2019-10-22 08:57:12,705 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:12,736 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:13,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:13,097 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:13,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:13,194 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:13,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13 WrapperNode [2019-10-22 08:57:13,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:13,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:13,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:13,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:13,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13" (1/1) ... [2019-10-22 08:57:13,220 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13" (1/1) ... [2019-10-22 08:57:13,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:13,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:13,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:13,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:13,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13" (1/1) ... [2019-10-22 08:57:13,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13" (1/1) ... [2019-10-22 08:57:13,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13" (1/1) ... [2019-10-22 08:57:13,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13" (1/1) ... [2019-10-22 08:57:13,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13" (1/1) ... [2019-10-22 08:57:13,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13" (1/1) ... [2019-10-22 08:57:13,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13" (1/1) ... [2019-10-22 08:57:13,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:13,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:13,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:13,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:13,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/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 08:57:13,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:13,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:57:13,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:13,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:13,344 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:57:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:57:13,344 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:57:13,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:57:13,345 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 08:57:13,345 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 08:57:13,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:57:13,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:13,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:13,347 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 08:57:13,681 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:13,682 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:57:13,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:13 BoogieIcfgContainer [2019-10-22 08:57:13,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:13,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:13,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:13,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:13,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:12" (1/3) ... [2019-10-22 08:57:13,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4ff4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:13, skipping insertion in model container [2019-10-22 08:57:13,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:13" (2/3) ... [2019-10-22 08:57:13,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4ff4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:13, skipping insertion in model container [2019-10-22 08:57:13,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:13" (3/3) ... [2019-10-22 08:57:13,689 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_pso.opt.i [2019-10-22 08:57:13,715 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,715 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,715 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,715 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,716 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,716 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,716 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,716 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,716 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,716 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,717 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,717 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,717 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,717 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,717 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,717 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,717 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,718 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,718 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,718 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,718 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,718 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,719 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,719 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,719 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,719 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,719 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,719 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,719 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,720 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:57:13,728 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:57:13,728 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:13,739 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:13,754 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:13,771 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:13,771 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:13,771 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:13,772 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:13,772 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:13,772 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:13,772 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:13,772 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:13,780 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 53 transitions [2019-10-22 08:57:13,909 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2019-10-22 08:57:13,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2019-10-22 08:57:13,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:57:13,926 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:13,927 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] [2019-10-22 08:57:13,929 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:13,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:13,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1905564029, now seen corresponding path program 1 times [2019-10-22 08:57:13,942 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:13,942 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573187589] [2019-10-22 08:57:13,942 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:13,943 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:13,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:14,261 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 08:57:14,266 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573187589] [2019-10-22 08:57:14,267 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:14,267 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:14,268 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948127147] [2019-10-22 08:57:14,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:57:14,272 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:14,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:57:14,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:57:14,288 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2019-10-22 08:57:14,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:14,399 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2019-10-22 08:57:14,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:57:14,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-10-22 08:57:14,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:14,424 INFO L225 Difference]: With dead ends: 2493 [2019-10-22 08:57:14,424 INFO L226 Difference]: Without dead ends: 1128 [2019-10-22 08:57:14,429 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 08:57:14,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-10-22 08:57:14,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2019-10-22 08:57:14,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-10-22 08:57:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2019-10-22 08:57:14,578 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2019-10-22 08:57:14,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:14,579 INFO L462 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2019-10-22 08:57:14,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:57:14,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2019-10-22 08:57:14,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:57:14,583 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:14,583 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] [2019-10-22 08:57:14,583 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:14,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1445013829, now seen corresponding path program 1 times [2019-10-22 08:57:14,584 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:14,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775556621] [2019-10-22 08:57:14,584 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:14,584 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:14,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:14,720 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 08:57:14,720 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775556621] [2019-10-22 08:57:14,720 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:14,721 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:57:14,721 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29217004] [2019-10-22 08:57:14,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:14,723 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:14,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:14,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:14,724 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2019-10-22 08:57:14,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:14,835 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2019-10-22 08:57:14,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:14,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-10-22 08:57:14,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:14,843 INFO L225 Difference]: With dead ends: 1168 [2019-10-22 08:57:14,843 INFO L226 Difference]: Without dead ends: 1044 [2019-10-22 08:57:14,844 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 08:57:14,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2019-10-22 08:57:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2019-10-22 08:57:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-10-22 08:57:14,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2019-10-22 08:57:14,882 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2019-10-22 08:57:14,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:14,882 INFO L462 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2019-10-22 08:57:14,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2019-10-22 08:57:14,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:57:14,885 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:14,886 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] [2019-10-22 08:57:14,886 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:14,887 INFO L82 PathProgramCache]: Analyzing trace with hash -2027200165, now seen corresponding path program 1 times [2019-10-22 08:57:14,887 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:14,887 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18986707] [2019-10-22 08:57:14,888 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:14,888 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:14,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:15,015 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 08:57:15,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18986707] [2019-10-22 08:57:15,016 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:15,016 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:57:15,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603967651] [2019-10-22 08:57:15,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:57:15,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:15,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:57:15,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:57:15,017 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2019-10-22 08:57:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:15,098 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2019-10-22 08:57:15,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:57:15,099 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-10-22 08:57:15,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:15,103 INFO L225 Difference]: With dead ends: 820 [2019-10-22 08:57:15,103 INFO L226 Difference]: Without dead ends: 708 [2019-10-22 08:57:15,103 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-10-22 08:57:15,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-10-22 08:57:15,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2019-10-22 08:57:15,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-10-22 08:57:15,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2019-10-22 08:57:15,130 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2019-10-22 08:57:15,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:15,130 INFO L462 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2019-10-22 08:57:15,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:57:15,131 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2019-10-22 08:57:15,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:57:15,132 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:15,133 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] [2019-10-22 08:57:15,133 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:15,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:15,133 INFO L82 PathProgramCache]: Analyzing trace with hash 90753059, now seen corresponding path program 1 times [2019-10-22 08:57:15,134 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:15,134 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866426954] [2019-10-22 08:57:15,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:15,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:15,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:15,306 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 08:57:15,307 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866426954] [2019-10-22 08:57:15,307 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:15,307 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:57:15,307 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965430685] [2019-10-22 08:57:15,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:57:15,308 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:15,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:57:15,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:15,309 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 8 states. [2019-10-22 08:57:15,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:15,592 INFO L93 Difference]: Finished difference Result 1956 states and 5859 transitions. [2019-10-22 08:57:15,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-22 08:57:15,593 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-10-22 08:57:15,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:15,596 INFO L225 Difference]: With dead ends: 1956 [2019-10-22 08:57:15,596 INFO L226 Difference]: Without dead ends: 576 [2019-10-22 08:57:15,596 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2019-10-22 08:57:15,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2019-10-22 08:57:15,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2019-10-22 08:57:15,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2019-10-22 08:57:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 1711 transitions. [2019-10-22 08:57:15,612 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 1711 transitions. Word has length 33 [2019-10-22 08:57:15,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:15,613 INFO L462 AbstractCegarLoop]: Abstraction has 576 states and 1711 transitions. [2019-10-22 08:57:15,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:57:15,613 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 1711 transitions. [2019-10-22 08:57:15,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 08:57:15,615 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:15,615 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] [2019-10-22 08:57:15,615 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:15,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:15,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1904289749, now seen corresponding path program 2 times [2019-10-22 08:57:15,616 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:15,616 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149320848] [2019-10-22 08:57:15,616 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:15,616 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:15,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:15,705 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 08:57:15,706 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149320848] [2019-10-22 08:57:15,706 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:15,706 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:57:15,707 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389261209] [2019-10-22 08:57:15,707 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 08:57:15,707 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:15,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:57:15,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:57:15,708 INFO L87 Difference]: Start difference. First operand 576 states and 1711 transitions. Second operand 7 states. [2019-10-22 08:57:15,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:15,798 INFO L93 Difference]: Finished difference Result 448 states and 1295 transitions. [2019-10-22 08:57:15,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:57:15,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-10-22 08:57:15,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:15,799 INFO L225 Difference]: With dead ends: 448 [2019-10-22 08:57:15,799 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:57:15,800 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:57:15,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:57:15,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:57:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:57:15,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:57:15,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-10-22 08:57:15,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:15,801 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:57:15,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 08:57:15,801 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:57:15,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:57:15,804 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:57:15,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:15 BasicIcfg [2019-10-22 08:57:15,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:15,807 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:15,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:15,807 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:15,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:13" (3/4) ... [2019-10-22 08:57:15,812 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:57:15,818 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:57:15,819 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:57:15,819 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 08:57:15,823 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 08:57:15,823 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:57:15,862 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bcc6cef9-e27f-4ae6-a4c2-73d4795ae2d4/bin/uautomizer/witness.graphml [2019-10-22 08:57:15,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:15,864 INFO L168 Benchmark]: Toolchain (without parser) took 3172.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 937.8 MB in the beginning and 816.9 MB in the end (delta: 120.9 MB). Peak memory consumption was 255.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:15,865 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:15,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:15,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.96 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 08:57:15,866 INFO L168 Benchmark]: Boogie Preprocessor took 26.47 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 08:57:15,866 INFO L168 Benchmark]: RCFGBuilder took 410.79 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:15,867 INFO L168 Benchmark]: TraceAbstraction took 2123.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 816.9 MB in the end (delta: 251.4 MB). Peak memory consumption was 251.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:15,867 INFO L168 Benchmark]: Witness Printer took 55.60 ms. Allocated memory is still 1.2 GB. Free memory is still 816.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:15,869 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 502.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 937.8 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.96 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 26.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 410.79 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2123.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 816.9 MB in the end (delta: 251.4 MB). Peak memory consumption was 251.4 MB. Max. memory is 11.5 GB. * Witness Printer took 55.60 ms. Allocated memory is still 1.2 GB. Free memory is still 816.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 328 SDtfs, 410 SDslu, 898 SDs, 0 SdLazy, 107 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 13838 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...