./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe001_tso.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_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe001_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/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 09ab4f067acabe93068b41cdb606ffe8834d535b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 08:58:16,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:16,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:16,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:16,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:16,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:16,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:16,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:16,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:16,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:16,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:16,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:16,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:16,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:16,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:16,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:16,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:16,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:16,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:16,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:16,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:16,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:16,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:16,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:16,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:16,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:16,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:16,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:16,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:16,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:16,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:16,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:16,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:16,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:16,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:16,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:16,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:16,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:16,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:16,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:16,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:16,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:58:16,513 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:16,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:16,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:16,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:16,515 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:16,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:16,515 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:16,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:16,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:16,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:16,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:16,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:16,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:16,516 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:16,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:16,517 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:16,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:16,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:16,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:16,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:16,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:16,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:16,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:16,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:16,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:16,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:16,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:16,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:16,519 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_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/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 -> 09ab4f067acabe93068b41cdb606ffe8834d535b [2019-10-22 08:58:16,543 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:16,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:16,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:16,556 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:16,557 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:16,557 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe001_tso.opt.i [2019-10-22 08:58:16,606 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/bin/uautomizer/data/534acad9f/11bcc132b73a48ea9e71de9195d50008/FLAG48e79175b [2019-10-22 08:58:17,023 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:17,023 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/sv-benchmarks/c/pthread-wmm/safe001_tso.opt.i [2019-10-22 08:58:17,035 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/bin/uautomizer/data/534acad9f/11bcc132b73a48ea9e71de9195d50008/FLAG48e79175b [2019-10-22 08:58:17,379 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/bin/uautomizer/data/534acad9f/11bcc132b73a48ea9e71de9195d50008 [2019-10-22 08:58:17,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:17,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:17,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:17,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:17,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:17,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20921137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17, skipping insertion in model container [2019-10-22 08:58:17,398 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,405 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:17,452 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:17,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:17,822 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:17,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:17,934 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:17,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17 WrapperNode [2019-10-22 08:58:17,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:17,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:17,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:17,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:17,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:17,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:17,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:17,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:17,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... [2019-10-22 08:58:17,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:17,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:17,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:17,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:17,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/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 08:58:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 08:58:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 08:58:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 08:58:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 08:58:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 08:58:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-10-22 08:58:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-10-22 08:58:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 08:58:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:18,066 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 08:58:18,461 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:18,461 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:58:18,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:18 BoogieIcfgContainer [2019-10-22 08:58:18,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:18,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:18,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:18,467 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:18,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:17" (1/3) ... [2019-10-22 08:58:18,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d237164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:18, skipping insertion in model container [2019-10-22 08:58:18,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:17" (2/3) ... [2019-10-22 08:58:18,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d237164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:18, skipping insertion in model container [2019-10-22 08:58:18,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:18" (3/3) ... [2019-10-22 08:58:18,470 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2019-10-22 08:58:18,501 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,501 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,501 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,501 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,502 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,502 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,502 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,502 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,502 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,502 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,503 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,503 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,503 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,503 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,503 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,504 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,504 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,504 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,504 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,504 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,504 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,505 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,505 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,505 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,505 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,505 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,505 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,506 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,506 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,506 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:18,516 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:58:18,516 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:18,524 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:58:18,535 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:58:18,553 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:18,553 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:18,554 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:18,554 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:18,554 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:18,554 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:18,554 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:18,554 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:18,563 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 52 transitions [2019-10-22 08:58:18,702 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2019-10-22 08:58:18,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2019-10-22 08:58:18,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:58:18,723 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:18,723 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] [2019-10-22 08:58:18,725 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:18,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:18,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1031676120, now seen corresponding path program 1 times [2019-10-22 08:58:18,738 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:18,738 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466418232] [2019-10-22 08:58:18,739 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,739 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:18,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,073 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 08:58:19,074 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466418232] [2019-10-22 08:58:19,075 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:19,075 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:19,076 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867794898] [2019-10-22 08:58:19,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:19,080 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:19,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:19,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:19,096 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2019-10-22 08:58:19,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:19,195 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2019-10-22 08:58:19,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:19,197 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-22 08:58:19,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:19,218 INFO L225 Difference]: With dead ends: 2492 [2019-10-22 08:58:19,218 INFO L226 Difference]: Without dead ends: 1127 [2019-10-22 08:58:19,220 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 08:58:19,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2019-10-22 08:58:19,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2019-10-22 08:58:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2019-10-22 08:58:19,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2019-10-22 08:58:19,354 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2019-10-22 08:58:19,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:19,355 INFO L462 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2019-10-22 08:58:19,355 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:19,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2019-10-22 08:58:19,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-10-22 08:58:19,364 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:19,365 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 08:58:19,365 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:19,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,365 INFO L82 PathProgramCache]: Analyzing trace with hash -1790148292, now seen corresponding path program 1 times [2019-10-22 08:58:19,365 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:19,366 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818862240] [2019-10-22 08:58:19,366 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,366 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,518 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 08:58:19,518 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818862240] [2019-10-22 08:58:19,519 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:19,519 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:19,519 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446948683] [2019-10-22 08:58:19,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:19,521 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:19,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:19,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:19,521 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2019-10-22 08:58:19,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:19,581 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2019-10-22 08:58:19,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:58:19,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-10-22 08:58:19,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:19,592 INFO L225 Difference]: With dead ends: 1167 [2019-10-22 08:58:19,592 INFO L226 Difference]: Without dead ends: 1043 [2019-10-22 08:58:19,593 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 08:58:19,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-10-22 08:58:19,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2019-10-22 08:58:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2019-10-22 08:58:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2019-10-22 08:58:19,647 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2019-10-22 08:58:19,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:19,648 INFO L462 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2019-10-22 08:58:19,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:19,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2019-10-22 08:58:19,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-10-22 08:58:19,651 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:19,651 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 08:58:19,651 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:19,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,651 INFO L82 PathProgramCache]: Analyzing trace with hash -85432878, now seen corresponding path program 1 times [2019-10-22 08:58:19,652 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:19,652 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497006424] [2019-10-22 08:58:19,652 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,652 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:19,797 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 08:58:19,798 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497006424] [2019-10-22 08:58:19,798 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:19,798 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:58:19,798 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623308400] [2019-10-22 08:58:19,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 08:58:19,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:19,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:58:19,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:19,800 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2019-10-22 08:58:19,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:19,885 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2019-10-22 08:58:19,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:58:19,887 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-10-22 08:58:19,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:19,890 INFO L225 Difference]: With dead ends: 819 [2019-10-22 08:58:19,890 INFO L226 Difference]: Without dead ends: 707 [2019-10-22 08:58:19,891 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 08:58:19,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-22 08:58:19,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2019-10-22 08:58:19,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2019-10-22 08:58:19,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2019-10-22 08:58:19,916 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2019-10-22 08:58:19,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:19,916 INFO L462 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2019-10-22 08:58:19,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 08:58:19,917 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2019-10-22 08:58:19,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:58:19,919 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:19,919 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 08:58:19,919 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:19,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:19,919 INFO L82 PathProgramCache]: Analyzing trace with hash -213907760, now seen corresponding path program 1 times [2019-10-22 08:58:19,919 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:19,920 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222929266] [2019-10-22 08:58:19,920 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,920 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:19,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,087 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 08:58:20,087 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222929266] [2019-10-22 08:58:20,087 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:20,088 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:58:20,088 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963948689] [2019-10-22 08:58:20,088 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:20,088 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:20,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:20,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:20,089 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 8 states. [2019-10-22 08:58:20,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:20,296 INFO L93 Difference]: Finished difference Result 1571 states and 4674 transitions. [2019-10-22 08:58:20,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 08:58:20,296 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-10-22 08:58:20,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:20,299 INFO L225 Difference]: With dead ends: 1571 [2019-10-22 08:58:20,300 INFO L226 Difference]: Without dead ends: 635 [2019-10-22 08:58:20,300 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-22 08:58:20,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2019-10-22 08:58:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2019-10-22 08:58:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2019-10-22 08:58:20,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 1878 transitions. [2019-10-22 08:58:20,321 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 1878 transitions. Word has length 32 [2019-10-22 08:58:20,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:20,321 INFO L462 AbstractCegarLoop]: Abstraction has 635 states and 1878 transitions. [2019-10-22 08:58:20,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:20,321 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 1878 transitions. [2019-10-22 08:58:20,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-22 08:58:20,323 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:20,323 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 08:58:20,323 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:20,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:20,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1910116666, now seen corresponding path program 2 times [2019-10-22 08:58:20,323 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:20,324 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395329397] [2019-10-22 08:58:20,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,324 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:20,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:20,435 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 08:58:20,435 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395329397] [2019-10-22 08:58:20,435 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:20,436 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-22 08:58:20,436 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066795519] [2019-10-22 08:58:20,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:58:20,436 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:20,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:58:20,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:58:20,437 INFO L87 Difference]: Start difference. First operand 635 states and 1878 transitions. Second operand 8 states. [2019-10-22 08:58:20,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:20,518 INFO L93 Difference]: Finished difference Result 507 states and 1462 transitions. [2019-10-22 08:58:20,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 08:58:20,519 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-10-22 08:58:20,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:20,519 INFO L225 Difference]: With dead ends: 507 [2019-10-22 08:58:20,519 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:58:20,520 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:20,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:58:20,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:58:20,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:58:20,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:58:20,521 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-10-22 08:58:20,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:20,521 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:20,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:58:20,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:20,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:58:20,524 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:58:20,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:20 BasicIcfg [2019-10-22 08:58:20,525 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:20,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:20,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:20,526 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:20,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:18" (3/4) ... [2019-10-22 08:58:20,530 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:58:20,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 08:58:20,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 08:58:20,539 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-10-22 08:58:20,545 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 08:58:20,546 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:58:20,590 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_80c8e4a2-f9ac-49d8-8552-645a70bb18d5/bin/uautomizer/witness.graphml [2019-10-22 08:58:20,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:20,593 INFO L168 Benchmark]: Toolchain (without parser) took 3207.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 838.4 MB in the end (delta: 106.3 MB). Peak memory consumption was 258.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,594 INFO L168 Benchmark]: CDTParser took 0.16 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 08:58:20,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.67 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 08:58:20,595 INFO L168 Benchmark]: Boogie Preprocessor took 22.28 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 08:58:20,596 INFO L168 Benchmark]: RCFGBuilder took 467.07 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,600 INFO L168 Benchmark]: TraceAbstraction took 2061.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 845.2 MB in the end (delta: 240.5 MB). Peak memory consumption was 240.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,600 INFO L168 Benchmark]: Witness Printer took 66.00 ms. Allocated memory is still 1.2 GB. Free memory was 845.2 MB in the beginning and 838.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:20,602 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 547.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.28 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 467.07 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2061.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 845.2 MB in the end (delta: 240.5 MB). Peak memory consumption was 240.5 MB. Max. memory is 11.5 GB. * Witness Printer took 66.00 ms. Allocated memory is still 1.2 GB. Free memory was 845.2 MB in the beginning and 838.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 70 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 256 SDtfs, 441 SDslu, 710 SDs, 0 SdLazy, 100 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred 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, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 14307 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...