./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0969ffcd46ed9957965688e854c42e24c3f91cc9a9b9eb33cb456b7ba8a6c128 ........................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:30:53,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:30:53,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:30:53,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:30:53,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:30:53,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:30:53,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:30:53,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:30:53,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:30:53,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:30:53,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:30:53,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:30:53,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:30:53,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:30:53,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:30:53,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:30:53,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:30:53,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:30:53,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:30:53,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:30:53,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:30:53,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:30:53,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:30:53,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:30:53,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:30:53,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:30:53,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:30:53,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:30:53,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:30:53,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:30:53,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:30:53,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:30:53,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:30:53,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:30:53,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:30:53,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:30:53,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:30:53,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:30:53,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:30:53,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:30:53,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:30:53,515 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:30:53,571 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:30:53,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:30:53,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:30:53,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:30:53,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:30:53,574 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:30:53,575 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:30:53,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:30:53,576 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:30:53,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:30:53,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:30:53,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:30:53,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:30:53,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:30:53,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:30:53,578 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:30:53,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:30:53,579 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:30:53,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:30:53,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:30:53,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:30:53,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:30:53,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:30:53,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:30:53,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:30:53,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:30:53,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:30:53,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:30:53,582 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:30:53,582 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:30:53,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:30:53,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:30:53,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0969ffcd46ed9957965688e854c42e24c3f91cc9a9b9eb33cb456b7ba8a6c128 [2021-10-28 23:30:53,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:30:53,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:30:53,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:30:53,929 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:30:53,930 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:30:53,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i [2021-10-28 23:30:54,041 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/data/e174c699a/42b962301adc4874bef86768671e4d1d/FLAGdb57f37fb [2021-10-28 23:30:54,571 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:30:54,571 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i [2021-10-28 23:30:54,587 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/data/e174c699a/42b962301adc4874bef86768671e4d1d/FLAGdb57f37fb [2021-10-28 23:30:54,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/data/e174c699a/42b962301adc4874bef86768671e4d1d [2021-10-28 23:30:54,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:30:54,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:30:54,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:30:54,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:30:54,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:30:54,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:30:54" (1/1) ... [2021-10-28 23:30:54,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c54ff0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:54, skipping insertion in model container [2021-10-28 23:30:54,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:30:54" (1/1) ... [2021-10-28 23:30:54,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:30:54,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:30:55,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i[826,839] [2021-10-28 23:30:55,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:30:55,404 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:30:55,428 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/sv-benchmarks/c/goblint-regression/13-privatized_36-traces-ex-3_true.i[826,839] [2021-10-28 23:30:55,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:30:55,555 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:30:55,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55 WrapperNode [2021-10-28 23:30:55,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:30:55,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:30:55,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:30:55,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:30:55,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55" (1/1) ... [2021-10-28 23:30:55,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55" (1/1) ... [2021-10-28 23:30:55,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:30:55,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:30:55,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:30:55,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:30:55,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55" (1/1) ... [2021-10-28 23:30:55,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55" (1/1) ... [2021-10-28 23:30:55,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55" (1/1) ... [2021-10-28 23:30:55,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55" (1/1) ... [2021-10-28 23:30:55,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55" (1/1) ... [2021-10-28 23:30:55,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55" (1/1) ... [2021-10-28 23:30:55,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55" (1/1) ... [2021-10-28 23:30:55,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:30:55,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:30:55,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:30:55,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:30:55,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55" (1/1) ... [2021-10-28 23:30:55,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:30:55,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:30:55,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:30:55,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:30:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:30:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-28 23:30:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:30:55,817 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-28 23:30:55,818 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-28 23:30:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:30:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:30:55,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:30:55,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:30:55,820 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 23:30:56,147 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:30:56,147 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 23:30:56,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:30:56 BoogieIcfgContainer [2021-10-28 23:30:56,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:30:56,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:30:56,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:30:56,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:30:56,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:30:54" (1/3) ... [2021-10-28 23:30:56,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59568feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:30:56, skipping insertion in model container [2021-10-28 23:30:56,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:30:55" (2/3) ... [2021-10-28 23:30:56,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59568feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:30:56, skipping insertion in model container [2021-10-28 23:30:56,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:30:56" (3/3) ... [2021-10-28 23:30:56,183 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_36-traces-ex-3_true.i [2021-10-28 23:30:56,189 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 23:30:56,189 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:30:56,190 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:30:56,190 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 23:30:56,263 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,263 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,264 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,264 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,264 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,264 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,265 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,265 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,265 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,266 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,266 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,266 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,267 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,267 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,267 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,269 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,269 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,269 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,273 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,274 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,275 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:30:56,286 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-28 23:30:56,339 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:30:56,348 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:30:56,349 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 23:30:56,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 125 flow [2021-10-28 23:30:56,417 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-10-28 23:30:56,417 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:30:56,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-10-28 23:30:56,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 125 flow [2021-10-28 23:30:56,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 50 transitions, 103 flow [2021-10-28 23:30:56,451 INFO L129 PetriNetUnfolder]: 0/49 cut-off events. [2021-10-28 23:30:56,452 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:30:56,452 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:30:56,453 INFO L254 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1] [2021-10-28 23:30:56,453 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:30:56,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:56,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1724490557, now seen corresponding path program 1 times [2021-10-28 23:30:56,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:56,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310721748] [2021-10-28 23:30:56,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:56,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:56,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:56,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:56,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310721748] [2021-10-28 23:30:56,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310721748] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:56,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:56,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:30:56,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17931986] [2021-10-28 23:30:56,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 23:30:56,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:56,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:30:56,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:30:56,995 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 60 [2021-10-28 23:30:57,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:57,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:30:57,003 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 60 [2021-10-28 23:30:57,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:30:57,169 INFO L129 PetriNetUnfolder]: 8/89 cut-off events. [2021-10-28 23:30:57,172 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 23:30:57,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 89 events. 8/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 173 event pairs, 0 based on Foata normal form. 3/92 useless extension candidates. Maximal degree in co-relation 89. Up to 9 conditions per place. [2021-10-28 23:30:57,176 INFO L132 encePairwiseOnDemand]: 54/60 looper letters, 7 selfloop transitions, 3 changer transitions 9/62 dead transitions. [2021-10-28 23:30:57,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 62 transitions, 165 flow [2021-10-28 23:30:57,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:30:57,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 23:30:57,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 371 transitions. [2021-10-28 23:30:57,202 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8833333333333333 [2021-10-28 23:30:57,203 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 371 transitions. [2021-10-28 23:30:57,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 371 transitions. [2021-10-28 23:30:57,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:30:57,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 371 transitions. [2021-10-28 23:30:57,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 53.0) internal successors, (371), 7 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:57,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:57,224 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 60.0) internal successors, (480), 8 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:57,226 INFO L186 Difference]: Start difference. First operand has 54 places, 50 transitions, 103 flow. Second operand 7 states and 371 transitions. [2021-10-28 23:30:57,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 62 transitions, 165 flow [2021-10-28 23:30:57,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 62 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 23:30:57,234 INFO L242 Difference]: Finished difference. Result has 64 places, 50 transitions, 121 flow [2021-10-28 23:30:57,236 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=121, PETRI_PLACES=64, PETRI_TRANSITIONS=50} [2021-10-28 23:30:57,237 INFO L334 CegarLoopForPetriNet]: 54 programPoint places, 10 predicate places. [2021-10-28 23:30:57,237 INFO L470 AbstractCegarLoop]: Abstraction has has 64 places, 50 transitions, 121 flow [2021-10-28 23:30:57,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:57,238 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 23:30:57,239 INFO L254 CegarLoopForPetriNet]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:30:57,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:30:57,239 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 23:30:57,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:30:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1307729919, now seen corresponding path program 1 times [2021-10-28 23:30:57,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:30:57,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584202962] [2021-10-28 23:30:57,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:30:57,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:30:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:30:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:30:57,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:30:57,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584202962] [2021-10-28 23:30:57,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584202962] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:30:57,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:30:57,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 23:30:57,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89624114] [2021-10-28 23:30:57,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 23:30:57,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:30:57,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:30:57,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:30:57,457 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 60 [2021-10-28 23:30:57,458 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 50 transitions, 121 flow. Second operand has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:57,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 23:30:57,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 60 [2021-10-28 23:30:57,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 23:30:57,639 INFO L129 PetriNetUnfolder]: 8/75 cut-off events. [2021-10-28 23:30:57,643 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-28 23:30:57,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 75 events. 8/75 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 114 event pairs, 2 based on Foata normal form. 4/79 useless extension candidates. Maximal degree in co-relation 127. Up to 17 conditions per place. [2021-10-28 23:30:57,645 INFO L132 encePairwiseOnDemand]: 55/60 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2021-10-28 23:30:57,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 47 transitions, 155 flow [2021-10-28 23:30:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:30:57,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-28 23:30:57,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 192 transitions. [2021-10-28 23:30:57,652 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.64 [2021-10-28 23:30:57,652 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 192 transitions. [2021-10-28 23:30:57,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 192 transitions. [2021-10-28 23:30:57,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:30:57,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 192 transitions. [2021-10-28 23:30:57,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:57,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:57,660 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 60.0) internal successors, (360), 6 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:57,661 INFO L186 Difference]: Start difference. First operand has 64 places, 50 transitions, 121 flow. Second operand 5 states and 192 transitions. [2021-10-28 23:30:57,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 47 transitions, 155 flow [2021-10-28 23:30:57,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 47 transitions, 146 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-10-28 23:30:57,666 INFO L242 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2021-10-28 23:30:57,666 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=60, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2021-10-28 23:30:57,667 INFO L334 CegarLoopForPetriNet]: 54 programPoint places, 2 predicate places. [2021-10-28 23:30:57,667 INFO L470 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2021-10-28 23:30:57,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:30:57,671 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:30:57,671 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 23:30:57,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:30:57,682 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:30:57,688 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 23:30:57,688 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:30:57,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:30:57 BasicIcfg [2021-10-28 23:30:57,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:30:57,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:30:57,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:30:57,699 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:30:57,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:30:56" (3/4) ... [2021-10-28 23:30:57,703 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 23:30:57,712 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-10-28 23:30:57,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-28 23:30:57,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 23:30:57,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:30:57,718 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 23:30:57,765 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:30:57,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:30:57,767 INFO L168 Benchmark]: Toolchain (without parser) took 2877.62 ms. Allocated memory was 94.4 MB in the beginning and 151.0 MB in the end (delta: 56.6 MB). Free memory was 58.1 MB in the beginning and 115.1 MB in the end (delta: -57.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:30:57,768 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory was 64.8 MB in the beginning and 64.8 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:30:57,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.66 ms. Allocated memory was 94.4 MB in the beginning and 151.0 MB in the end (delta: 56.6 MB). Free memory was 57.8 MB in the beginning and 117.7 MB in the end (delta: -59.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:30:57,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.03 ms. Allocated memory is still 151.0 MB. Free memory was 117.7 MB in the beginning and 115.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:30:57,771 INFO L168 Benchmark]: Boogie Preprocessor took 60.68 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:30:57,772 INFO L168 Benchmark]: RCFGBuilder took 452.22 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 103.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:30:57,773 INFO L168 Benchmark]: TraceAbstraction took 1529.66 ms. Allocated memory is still 151.0 MB. Free memory was 103.0 MB in the beginning and 118.2 MB in the end (delta: -15.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:30:57,773 INFO L168 Benchmark]: Witness Printer took 68.19 ms. Allocated memory is still 151.0 MB. Free memory was 118.2 MB in the beginning and 115.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:30:57,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory was 64.8 MB in the beginning and 64.8 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 665.66 ms. Allocated memory was 94.4 MB in the beginning and 151.0 MB in the end (delta: 56.6 MB). Free memory was 57.8 MB in the beginning and 117.7 MB in the end (delta: -59.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.03 ms. Allocated memory is still 151.0 MB. Free memory was 117.7 MB in the beginning and 115.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.68 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 114.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 452.22 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 103.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1529.66 ms. Allocated memory is still 151.0 MB. Free memory was 103.0 MB in the beginning and 118.2 MB in the end (delta: -15.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 68.19 ms. Allocated memory is still 151.0 MB. Free memory was 118.2 MB in the beginning and 115.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 73 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 25 SDslu, 24 SDs, 0 SdLazy, 61 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-28 23:30:57,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7514d50e-5d41-4993-83ca-7981713bb7ae/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...