./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi000_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi000_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8 --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 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:47:37,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:47:37,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:47:37,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:47:37,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:47:37,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:47:37,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:47:37,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:47:37,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:47:37,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:47:37,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:47:37,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:47:37,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:47:37,665 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:47:37,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:47:37,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:47:37,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:47:37,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:47:37,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:47:37,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:47:37,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:47:37,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:47:37,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:47:37,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:47:37,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:47:37,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:47:37,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:47:37,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:47:37,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:47:37,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:47:37,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:47:37,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:47:37,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:47:37,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:47:37,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:47:37,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:47:37,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:47:37,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:47:37,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:47:37,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:47:37,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:47:37,716 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:47:37,756 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:47:37,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:47:37,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:47:37,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:47:37,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:47:37,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:47:37,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:47:37,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:47:37,760 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:47:37,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:47:37,761 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:47:37,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:47:37,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:47:37,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:47:37,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:47:37,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:47:37,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:47:37,763 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:47:37,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:47:37,764 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:47:37,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:47:37,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:47:37,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:47:37,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:47:37,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:47:37,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:47:37,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:47:37,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:47:37,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:47:37,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:47:37,768 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:47:37,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:47:37,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:47:37,769 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_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd [2022-11-16 11:47:38,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:47:38,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:47:38,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:47:38,063 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:47:38,064 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:47:38,065 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2022-11-16 11:47:38,150 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/data/a84cc2baf/b7f2cf50ef114a12a400fade0b94524a/FLAG39e575db9 [2022-11-16 11:47:38,736 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:47:38,739 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2022-11-16 11:47:38,756 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/data/a84cc2baf/b7f2cf50ef114a12a400fade0b94524a/FLAG39e575db9 [2022-11-16 11:47:39,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/data/a84cc2baf/b7f2cf50ef114a12a400fade0b94524a [2022-11-16 11:47:39,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:47:39,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:47:39,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:47:39,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:47:39,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:47:39,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:39,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b462ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39, skipping insertion in model container [2022-11-16 11:47:39,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:39,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:47:39,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:47:39,450 WARN L229 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_1d100c2e-5412-4606-97e8-d8ce2492d38b/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2022-11-16 11:47:39,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:47:39,776 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:47:39,790 WARN L229 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_1d100c2e-5412-4606-97e8-d8ce2492d38b/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2022-11-16 11:47:39,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:47:39,906 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:47:39,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39 WrapperNode [2022-11-16 11:47:39,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:47:39,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:47:39,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:47:39,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:47:39,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:39,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:39,984 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 164 [2022-11-16 11:47:39,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:47:39,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:47:39,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:47:39,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:47:39,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:39,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:40,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:40,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:40,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:40,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:40,014 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:40,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:40,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:47:40,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:47:40,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:47:40,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:47:40,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (1/1) ... [2022-11-16 11:47:40,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:47:40,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:47:40,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:47:40,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:47:40,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:47:40,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:47:40,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:47:40,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:47:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:47:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 11:47:40,129 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 11:47:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 11:47:40,130 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 11:47:40,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:47:40,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:47:40,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:47:40,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:47:40,133 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:47:40,275 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:47:40,278 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:47:40,855 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:47:41,082 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:47:41,083 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:47:41,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:47:41 BoogieIcfgContainer [2022-11-16 11:47:41,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:47:41,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:47:41,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:47:41,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:47:41,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:47:39" (1/3) ... [2022-11-16 11:47:41,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a0cdd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:47:41, skipping insertion in model container [2022-11-16 11:47:41,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:47:39" (2/3) ... [2022-11-16 11:47:41,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a0cdd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:47:41, skipping insertion in model container [2022-11-16 11:47:41,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:47:41" (3/3) ... [2022-11-16 11:47:41,097 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2022-11-16 11:47:41,106 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:47:41,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:47:41,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 11:47:41,117 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:47:41,188 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:47:41,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 97 transitions, 204 flow [2022-11-16 11:47:41,280 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2022-11-16 11:47:41,280 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:47:41,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-11-16 11:47:41,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 97 transitions, 204 flow [2022-11-16 11:47:41,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 95 transitions, 196 flow [2022-11-16 11:47:41,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:47:41,307 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@18eae390, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:47:41,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-16 11:47:41,323 INFO L130 PetriNetUnfolder]: 0/58 cut-off events. [2022-11-16 11:47:41,324 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:47:41,324 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:47:41,325 INFO L209 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:41,325 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:47:41,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:41,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1762124549, now seen corresponding path program 1 times [2022-11-16 11:47:41,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:41,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191695753] [2022-11-16 11:47:41,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:41,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:42,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:47:42,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:42,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191695753] [2022-11-16 11:47:42,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191695753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:42,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:42,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:47:42,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052271877] [2022-11-16 11:47:42,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:42,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:47:42,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:42,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:47:42,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:47:42,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 97 [2022-11-16 11:47:42,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 95 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2022-11-16 11:47:42,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:47:42,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 97 [2022-11-16 11:47:42,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:47:42,159 INFO L130 PetriNetUnfolder]: 31/182 cut-off events. [2022-11-16 11:47:42,159 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:47:42,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 182 events. 31/182 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 540 event pairs, 3 based on Foata normal form. 10/181 useless extension candidates. Maximal degree in co-relation 208. Up to 53 conditions per place. [2022-11-16 11:47:42,162 INFO L137 encePairwiseOnDemand]: 92/97 looper letters, 11 selfloop transitions, 2 changer transitions 0/94 dead transitions. [2022-11-16 11:47:42,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 94 transitions, 220 flow [2022-11-16 11:47:42,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:47:42,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:47:42,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2022-11-16 11:47:42,176 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9175257731958762 [2022-11-16 11:47:42,177 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2022-11-16 11:47:42,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2022-11-16 11:47:42,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:47:42,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2022-11-16 11:47:42,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2022-11-16 11:47:42,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-16 11:47:42,190 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2022-11-16 11:47:42,192 INFO L175 Difference]: Start difference. First operand has 100 places, 95 transitions, 196 flow. Second operand 3 states and 267 transitions. [2022-11-16 11:47:42,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 94 transitions, 220 flow [2022-11-16 11:47:42,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 94 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:47:42,199 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 190 flow [2022-11-16 11:47:42,201 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2022-11-16 11:47:42,205 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, -2 predicate places. [2022-11-16 11:47:42,206 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 190 flow [2022-11-16 11:47:42,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2022-11-16 11:47:42,206 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:47:42,207 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:47:42,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:47:42,207 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:47:42,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:42,208 INFO L85 PathProgramCache]: Analyzing trace with hash 964177486, now seen corresponding path program 1 times [2022-11-16 11:47:42,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:42,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296556844] [2022-11-16 11:47:42,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:42,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:47:43,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:43,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296556844] [2022-11-16 11:47:43,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296556844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:43,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:43,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:47:43,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058406151] [2022-11-16 11:47:43,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:43,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:47:43,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:43,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:47:43,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:47:43,720 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 97 [2022-11-16 11:47:43,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 190 flow. Second operand has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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) [2022-11-16 11:47:43,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:47:43,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 97 [2022-11-16 11:47:43,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:47:44,853 INFO L130 PetriNetUnfolder]: 333/1000 cut-off events. [2022-11-16 11:47:44,854 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-11-16 11:47:44,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1632 conditions, 1000 events. 333/1000 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6142 event pairs, 60 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 1574. Up to 160 conditions per place. [2022-11-16 11:47:44,868 INFO L137 encePairwiseOnDemand]: 85/97 looper letters, 30 selfloop transitions, 8 changer transitions 64/156 dead transitions. [2022-11-16 11:47:44,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 156 transitions, 512 flow [2022-11-16 11:47:44,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:47:44,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:47:44,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 941 transitions. [2022-11-16 11:47:44,877 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.746233148295004 [2022-11-16 11:47:44,877 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 941 transitions. [2022-11-16 11:47:44,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 941 transitions. [2022-11-16 11:47:44,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:47:44,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 941 transitions. [2022-11-16 11:47:44,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.38461538461539) internal successors, (941), 13 states have internal predecessors, (941), 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) [2022-11-16 11:47:44,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2022-11-16 11:47:44,906 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 97.0) internal successors, (1358), 14 states have internal predecessors, (1358), 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) [2022-11-16 11:47:44,906 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 190 flow. Second operand 13 states and 941 transitions. [2022-11-16 11:47:44,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 156 transitions, 512 flow [2022-11-16 11:47:44,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 156 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:47:44,911 INFO L231 Difference]: Finished difference. Result has 120 places, 85 transitions, 254 flow [2022-11-16 11:47:44,912 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=254, PETRI_PLACES=120, PETRI_TRANSITIONS=85} [2022-11-16 11:47:44,913 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 20 predicate places. [2022-11-16 11:47:44,913 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 85 transitions, 254 flow [2022-11-16 11:47:44,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 67.71428571428571) internal successors, (474), 7 states have internal predecessors, (474), 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) [2022-11-16 11:47:44,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:47:44,914 INFO L209 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, 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] [2022-11-16 11:47:44,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:47:44,915 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:47:44,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:44,916 INFO L85 PathProgramCache]: Analyzing trace with hash 368257647, now seen corresponding path program 1 times [2022-11-16 11:47:44,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:44,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461876201] [2022-11-16 11:47:44,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:44,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:47,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:47:47,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:47,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461876201] [2022-11-16 11:47:47,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461876201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:47,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:47,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:47:47,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812665121] [2022-11-16 11:47:47,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:47,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:47:47,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:47,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:47:47,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:47:47,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 97 [2022-11-16 11:47:47,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 85 transitions, 254 flow. Second operand has 14 states, 14 states have (on average 70.42857142857143) internal successors, (986), 14 states have internal predecessors, (986), 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) [2022-11-16 11:47:47,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:47:47,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 97 [2022-11-16 11:47:47,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:47:47,561 INFO L130 PetriNetUnfolder]: 117/346 cut-off events. [2022-11-16 11:47:47,561 INFO L131 PetriNetUnfolder]: For 863/1029 co-relation queries the response was YES. [2022-11-16 11:47:47,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1092 conditions, 346 events. 117/346 cut-off events. For 863/1029 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1410 event pairs, 23 based on Foata normal form. 36/367 useless extension candidates. Maximal degree in co-relation 1020. Up to 138 conditions per place. [2022-11-16 11:47:47,564 INFO L137 encePairwiseOnDemand]: 83/97 looper letters, 27 selfloop transitions, 14 changer transitions 28/128 dead transitions. [2022-11-16 11:47:47,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 128 transitions, 634 flow [2022-11-16 11:47:47,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:47:47,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 11:47:47,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1166 transitions. [2022-11-16 11:47:47,569 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7512886597938144 [2022-11-16 11:47:47,569 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1166 transitions. [2022-11-16 11:47:47,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1166 transitions. [2022-11-16 11:47:47,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:47:47,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1166 transitions. [2022-11-16 11:47:47,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 72.875) internal successors, (1166), 16 states have internal predecessors, (1166), 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) [2022-11-16 11:47:47,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 97.0) internal successors, (1649), 17 states have internal predecessors, (1649), 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) [2022-11-16 11:47:47,580 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 97.0) internal successors, (1649), 17 states have internal predecessors, (1649), 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) [2022-11-16 11:47:47,581 INFO L175 Difference]: Start difference. First operand has 120 places, 85 transitions, 254 flow. Second operand 16 states and 1166 transitions. [2022-11-16 11:47:47,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 128 transitions, 634 flow [2022-11-16 11:47:47,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 128 transitions, 603 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-11-16 11:47:47,594 INFO L231 Difference]: Finished difference. Result has 121 places, 93 transitions, 332 flow [2022-11-16 11:47:47,594 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=332, PETRI_PLACES=121, PETRI_TRANSITIONS=93} [2022-11-16 11:47:47,596 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 21 predicate places. [2022-11-16 11:47:47,597 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 93 transitions, 332 flow [2022-11-16 11:47:47,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 70.42857142857143) internal successors, (986), 14 states have internal predecessors, (986), 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) [2022-11-16 11:47:47,597 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:47:47,598 INFO L209 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, 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] [2022-11-16 11:47:47,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:47:47,598 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:47:47,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:47,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1459622549, now seen corresponding path program 1 times [2022-11-16 11:47:47,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:47,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615868601] [2022-11-16 11:47:47,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:47,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:50,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:47:50,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:50,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615868601] [2022-11-16 11:47:50,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615868601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:50,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:50,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:47:50,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099293943] [2022-11-16 11:47:50,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:50,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:47:50,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:50,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:47:50,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:47:50,667 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 97 [2022-11-16 11:47:50,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 93 transitions, 332 flow. Second operand has 14 states, 14 states have (on average 68.64285714285714) internal successors, (961), 14 states have internal predecessors, (961), 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) [2022-11-16 11:47:50,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:47:50,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 97 [2022-11-16 11:47:50,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:47:51,104 INFO L130 PetriNetUnfolder]: 96/305 cut-off events. [2022-11-16 11:47:51,105 INFO L131 PetriNetUnfolder]: For 1043/1196 co-relation queries the response was YES. [2022-11-16 11:47:51,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 305 events. 96/305 cut-off events. For 1043/1196 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1127 event pairs, 24 based on Foata normal form. 20/309 useless extension candidates. Maximal degree in co-relation 1001. Up to 143 conditions per place. [2022-11-16 11:47:51,110 INFO L137 encePairwiseOnDemand]: 84/97 looper letters, 36 selfloop transitions, 15 changer transitions 13/121 dead transitions. [2022-11-16 11:47:51,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 121 transitions, 620 flow [2022-11-16 11:47:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:47:51,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:47:51,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1059 transitions. [2022-11-16 11:47:51,114 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7278350515463917 [2022-11-16 11:47:51,114 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1059 transitions. [2022-11-16 11:47:51,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1059 transitions. [2022-11-16 11:47:51,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:47:51,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1059 transitions. [2022-11-16 11:47:51,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 70.6) internal successors, (1059), 15 states have internal predecessors, (1059), 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) [2022-11-16 11:47:51,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 97.0) internal successors, (1552), 16 states have internal predecessors, (1552), 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) [2022-11-16 11:47:51,127 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 97.0) internal successors, (1552), 16 states have internal predecessors, (1552), 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) [2022-11-16 11:47:51,127 INFO L175 Difference]: Start difference. First operand has 121 places, 93 transitions, 332 flow. Second operand 15 states and 1059 transitions. [2022-11-16 11:47:51,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 121 transitions, 620 flow [2022-11-16 11:47:51,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 121 transitions, 562 flow, removed 26 selfloop flow, removed 12 redundant places. [2022-11-16 11:47:51,135 INFO L231 Difference]: Finished difference. Result has 126 places, 101 transitions, 409 flow [2022-11-16 11:47:51,136 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=409, PETRI_PLACES=126, PETRI_TRANSITIONS=101} [2022-11-16 11:47:51,137 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 26 predicate places. [2022-11-16 11:47:51,138 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 101 transitions, 409 flow [2022-11-16 11:47:51,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 68.64285714285714) internal successors, (961), 14 states have internal predecessors, (961), 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) [2022-11-16 11:47:51,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:47:51,141 INFO L209 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, 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] [2022-11-16 11:47:51,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:47:51,141 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:47:51,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:51,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1224215445, now seen corresponding path program 2 times [2022-11-16 11:47:51,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:51,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546257868] [2022-11-16 11:47:51,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:51,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:53,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:47:53,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:53,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546257868] [2022-11-16 11:47:53,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546257868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:53,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:53,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:47:53,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486902072] [2022-11-16 11:47:53,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:53,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:47:53,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:53,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:47:53,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:47:53,337 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 97 [2022-11-16 11:47:53,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 101 transitions, 409 flow. Second operand has 15 states, 15 states have (on average 68.53333333333333) internal successors, (1028), 15 states have internal predecessors, (1028), 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) [2022-11-16 11:47:53,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:47:53,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 97 [2022-11-16 11:47:53,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:47:54,022 INFO L130 PetriNetUnfolder]: 91/304 cut-off events. [2022-11-16 11:47:54,023 INFO L131 PetriNetUnfolder]: For 828/958 co-relation queries the response was YES. [2022-11-16 11:47:54,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1063 conditions, 304 events. 91/304 cut-off events. For 828/958 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1086 event pairs, 27 based on Foata normal form. 18/303 useless extension candidates. Maximal degree in co-relation 975. Up to 129 conditions per place. [2022-11-16 11:47:54,026 INFO L137 encePairwiseOnDemand]: 85/97 looper letters, 29 selfloop transitions, 20 changer transitions 13/119 dead transitions. [2022-11-16 11:47:54,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 119 transitions, 665 flow [2022-11-16 11:47:54,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:47:54,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:47:54,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1057 transitions. [2022-11-16 11:47:54,032 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7264604810996563 [2022-11-16 11:47:54,032 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1057 transitions. [2022-11-16 11:47:54,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1057 transitions. [2022-11-16 11:47:54,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:47:54,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1057 transitions. [2022-11-16 11:47:54,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 70.46666666666667) internal successors, (1057), 15 states have internal predecessors, (1057), 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) [2022-11-16 11:47:54,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 97.0) internal successors, (1552), 16 states have internal predecessors, (1552), 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) [2022-11-16 11:47:54,040 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 97.0) internal successors, (1552), 16 states have internal predecessors, (1552), 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) [2022-11-16 11:47:54,041 INFO L175 Difference]: Start difference. First operand has 126 places, 101 transitions, 409 flow. Second operand 15 states and 1057 transitions. [2022-11-16 11:47:54,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 119 transitions, 665 flow [2022-11-16 11:47:54,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 119 transitions, 628 flow, removed 12 selfloop flow, removed 7 redundant places. [2022-11-16 11:47:54,049 INFO L231 Difference]: Finished difference. Result has 134 places, 101 transitions, 448 flow [2022-11-16 11:47:54,050 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=448, PETRI_PLACES=134, PETRI_TRANSITIONS=101} [2022-11-16 11:47:54,053 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 34 predicate places. [2022-11-16 11:47:54,053 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 101 transitions, 448 flow [2022-11-16 11:47:54,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 68.53333333333333) internal successors, (1028), 15 states have internal predecessors, (1028), 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) [2022-11-16 11:47:54,054 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:47:54,054 INFO L209 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, 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] [2022-11-16 11:47:54,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:47:54,055 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:47:54,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:54,056 INFO L85 PathProgramCache]: Analyzing trace with hash -429302098, now seen corresponding path program 1 times [2022-11-16 11:47:54,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:54,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655246589] [2022-11-16 11:47:54,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:54,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:54,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:47:54,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:54,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655246589] [2022-11-16 11:47:54,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655246589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:54,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:54,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:47:54,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182403557] [2022-11-16 11:47:54,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:54,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:47:54,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:54,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:47:54,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:47:54,316 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 97 [2022-11-16 11:47:54,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 101 transitions, 448 flow. Second operand has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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) [2022-11-16 11:47:54,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:47:54,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 97 [2022-11-16 11:47:54,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:47:54,735 INFO L130 PetriNetUnfolder]: 277/695 cut-off events. [2022-11-16 11:47:54,736 INFO L131 PetriNetUnfolder]: For 1857/1884 co-relation queries the response was YES. [2022-11-16 11:47:54,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2121 conditions, 695 events. 277/695 cut-off events. For 1857/1884 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3597 event pairs, 24 based on Foata normal form. 27/705 useless extension candidates. Maximal degree in co-relation 2046. Up to 140 conditions per place. [2022-11-16 11:47:54,742 INFO L137 encePairwiseOnDemand]: 88/97 looper letters, 38 selfloop transitions, 6 changer transitions 58/169 dead transitions. [2022-11-16 11:47:54,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 169 transitions, 1042 flow [2022-11-16 11:47:54,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:47:54,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:47:54,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 820 transitions. [2022-11-16 11:47:54,745 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.845360824742268 [2022-11-16 11:47:54,745 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 820 transitions. [2022-11-16 11:47:54,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 820 transitions. [2022-11-16 11:47:54,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:47:54,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 820 transitions. [2022-11-16 11:47:54,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 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) [2022-11-16 11:47:54,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 97.0) internal successors, (1067), 11 states have internal predecessors, (1067), 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) [2022-11-16 11:47:54,752 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 97.0) internal successors, (1067), 11 states have internal predecessors, (1067), 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) [2022-11-16 11:47:54,752 INFO L175 Difference]: Start difference. First operand has 134 places, 101 transitions, 448 flow. Second operand 10 states and 820 transitions. [2022-11-16 11:47:54,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 169 transitions, 1042 flow [2022-11-16 11:47:54,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 169 transitions, 925 flow, removed 14 selfloop flow, removed 23 redundant places. [2022-11-16 11:47:54,759 INFO L231 Difference]: Finished difference. Result has 120 places, 96 transitions, 354 flow [2022-11-16 11:47:54,759 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=354, PETRI_PLACES=120, PETRI_TRANSITIONS=96} [2022-11-16 11:47:54,761 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 20 predicate places. [2022-11-16 11:47:54,762 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 96 transitions, 354 flow [2022-11-16 11:47:54,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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) [2022-11-16 11:47:54,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:47:54,763 INFO L209 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, 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] [2022-11-16 11:47:54,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:47:54,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:47:54,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:54,764 INFO L85 PathProgramCache]: Analyzing trace with hash 372421309, now seen corresponding path program 1 times [2022-11-16 11:47:54,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:54,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969201690] [2022-11-16 11:47:54,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:54,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:47:56,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:56,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969201690] [2022-11-16 11:47:56,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969201690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:56,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:56,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:47:56,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284203968] [2022-11-16 11:47:56,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:56,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:47:56,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:56,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:47:56,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:47:56,618 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 97 [2022-11-16 11:47:56,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 96 transitions, 354 flow. Second operand has 12 states, 12 states have (on average 70.83333333333333) internal successors, (850), 12 states have internal predecessors, (850), 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) [2022-11-16 11:47:56,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:47:56,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 97 [2022-11-16 11:47:56,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:47:57,165 INFO L130 PetriNetUnfolder]: 62/346 cut-off events. [2022-11-16 11:47:57,166 INFO L131 PetriNetUnfolder]: For 497/513 co-relation queries the response was YES. [2022-11-16 11:47:57,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 346 events. 62/346 cut-off events. For 497/513 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1618 event pairs, 9 based on Foata normal form. 12/343 useless extension candidates. Maximal degree in co-relation 900. Up to 88 conditions per place. [2022-11-16 11:47:57,170 INFO L137 encePairwiseOnDemand]: 85/97 looper letters, 32 selfloop transitions, 20 changer transitions 13/127 dead transitions. [2022-11-16 11:47:57,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 127 transitions, 683 flow [2022-11-16 11:47:57,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:47:57,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:47:57,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1086 transitions. [2022-11-16 11:47:57,174 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7463917525773196 [2022-11-16 11:47:57,174 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1086 transitions. [2022-11-16 11:47:57,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1086 transitions. [2022-11-16 11:47:57,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:47:57,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1086 transitions. [2022-11-16 11:47:57,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 72.4) internal successors, (1086), 15 states have internal predecessors, (1086), 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) [2022-11-16 11:47:57,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 97.0) internal successors, (1552), 16 states have internal predecessors, (1552), 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) [2022-11-16 11:47:57,183 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 97.0) internal successors, (1552), 16 states have internal predecessors, (1552), 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) [2022-11-16 11:47:57,183 INFO L175 Difference]: Start difference. First operand has 120 places, 96 transitions, 354 flow. Second operand 15 states and 1086 transitions. [2022-11-16 11:47:57,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 127 transitions, 683 flow [2022-11-16 11:47:57,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 127 transitions, 674 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-16 11:47:57,191 INFO L231 Difference]: Finished difference. Result has 135 places, 109 transitions, 528 flow [2022-11-16 11:47:57,191 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=528, PETRI_PLACES=135, PETRI_TRANSITIONS=109} [2022-11-16 11:47:57,192 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 35 predicate places. [2022-11-16 11:47:57,192 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 109 transitions, 528 flow [2022-11-16 11:47:57,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 70.83333333333333) internal successors, (850), 12 states have internal predecessors, (850), 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) [2022-11-16 11:47:57,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:47:57,194 INFO L209 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, 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] [2022-11-16 11:47:57,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:47:57,194 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:47:57,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:47:57,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2033585613, now seen corresponding path program 2 times [2022-11-16 11:47:57,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:47:57,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669853529] [2022-11-16 11:47:57,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:47:57,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:47:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:47:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:47:59,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:47:59,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669853529] [2022-11-16 11:47:59,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669853529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:47:59,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:47:59,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-16 11:47:59,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962002474] [2022-11-16 11:47:59,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:47:59,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-16 11:47:59,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:47:59,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-16 11:47:59,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-16 11:47:59,692 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 97 [2022-11-16 11:47:59,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 109 transitions, 528 flow. Second operand has 14 states, 14 states have (on average 67.78571428571429) internal successors, (949), 14 states have internal predecessors, (949), 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) [2022-11-16 11:47:59,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:47:59,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 97 [2022-11-16 11:47:59,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:00,474 INFO L130 PetriNetUnfolder]: 86/493 cut-off events. [2022-11-16 11:48:00,474 INFO L131 PetriNetUnfolder]: For 1129/1153 co-relation queries the response was YES. [2022-11-16 11:48:00,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1546 conditions, 493 events. 86/493 cut-off events. For 1129/1153 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2867 event pairs, 14 based on Foata normal form. 12/484 useless extension candidates. Maximal degree in co-relation 1454. Up to 102 conditions per place. [2022-11-16 11:48:00,479 INFO L137 encePairwiseOnDemand]: 85/97 looper letters, 46 selfloop transitions, 20 changer transitions 18/143 dead transitions. [2022-11-16 11:48:00,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 143 transitions, 968 flow [2022-11-16 11:48:00,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:48:00,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 11:48:00,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 851 transitions. [2022-11-16 11:48:00,482 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7310996563573883 [2022-11-16 11:48:00,482 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 851 transitions. [2022-11-16 11:48:00,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 851 transitions. [2022-11-16 11:48:00,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:00,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 851 transitions. [2022-11-16 11:48:00,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 70.91666666666667) internal successors, (851), 12 states have internal predecessors, (851), 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) [2022-11-16 11:48:00,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 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) [2022-11-16 11:48:00,488 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 97.0) internal successors, (1261), 13 states have internal predecessors, (1261), 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) [2022-11-16 11:48:00,489 INFO L175 Difference]: Start difference. First operand has 135 places, 109 transitions, 528 flow. Second operand 12 states and 851 transitions. [2022-11-16 11:48:00,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 143 transitions, 968 flow [2022-11-16 11:48:00,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 143 transitions, 870 flow, removed 48 selfloop flow, removed 7 redundant places. [2022-11-16 11:48:00,496 INFO L231 Difference]: Finished difference. Result has 139 places, 109 transitions, 539 flow [2022-11-16 11:48:00,497 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=539, PETRI_PLACES=139, PETRI_TRANSITIONS=109} [2022-11-16 11:48:00,499 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 39 predicate places. [2022-11-16 11:48:00,499 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 109 transitions, 539 flow [2022-11-16 11:48:00,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 67.78571428571429) internal successors, (949), 14 states have internal predecessors, (949), 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) [2022-11-16 11:48:00,500 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:00,500 INFO L209 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, 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] [2022-11-16 11:48:00,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:48:00,501 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:48:00,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:00,501 INFO L85 PathProgramCache]: Analyzing trace with hash -225450547, now seen corresponding path program 3 times [2022-11-16 11:48:00,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:00,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727193995] [2022-11-16 11:48:00,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:00,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:00,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:00,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:00,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727193995] [2022-11-16 11:48:00,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727193995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:00,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:00,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:48:00,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525234692] [2022-11-16 11:48:00,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:00,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:48:00,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:00,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:48:00,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:48:00,761 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 97 [2022-11-16 11:48:00,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 109 transitions, 539 flow. Second operand has 7 states, 7 states have (on average 76.28571428571429) internal successors, (534), 7 states have internal predecessors, (534), 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) [2022-11-16 11:48:00,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:00,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 97 [2022-11-16 11:48:00,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:01,083 INFO L130 PetriNetUnfolder]: 168/561 cut-off events. [2022-11-16 11:48:01,083 INFO L131 PetriNetUnfolder]: For 2182/2194 co-relation queries the response was YES. [2022-11-16 11:48:01,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2116 conditions, 561 events. 168/561 cut-off events. For 2182/2194 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3193 event pairs, 31 based on Foata normal form. 31/587 useless extension candidates. Maximal degree in co-relation 2084. Up to 116 conditions per place. [2022-11-16 11:48:01,088 INFO L137 encePairwiseOnDemand]: 88/97 looper letters, 32 selfloop transitions, 9 changer transitions 41/149 dead transitions. [2022-11-16 11:48:01,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 149 transitions, 1070 flow [2022-11-16 11:48:01,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:48:01,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:48:01,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 867 transitions. [2022-11-16 11:48:01,092 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8125585754451734 [2022-11-16 11:48:01,093 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 867 transitions. [2022-11-16 11:48:01,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 867 transitions. [2022-11-16 11:48:01,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:01,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 867 transitions. [2022-11-16 11:48:01,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.81818181818181) internal successors, (867), 11 states have internal predecessors, (867), 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) [2022-11-16 11:48:01,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 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) [2022-11-16 11:48:01,100 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 97.0) internal successors, (1164), 12 states have internal predecessors, (1164), 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) [2022-11-16 11:48:01,101 INFO L175 Difference]: Start difference. First operand has 139 places, 109 transitions, 539 flow. Second operand 11 states and 867 transitions. [2022-11-16 11:48:01,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 149 transitions, 1070 flow [2022-11-16 11:48:01,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 149 transitions, 968 flow, removed 29 selfloop flow, removed 11 redundant places. [2022-11-16 11:48:01,112 INFO L231 Difference]: Finished difference. Result has 141 places, 101 transitions, 439 flow [2022-11-16 11:48:01,113 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=439, PETRI_PLACES=141, PETRI_TRANSITIONS=101} [2022-11-16 11:48:01,114 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 41 predicate places. [2022-11-16 11:48:01,114 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 101 transitions, 439 flow [2022-11-16 11:48:01,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.28571428571429) internal successors, (534), 7 states have internal predecessors, (534), 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) [2022-11-16 11:48:01,115 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:01,115 INFO L209 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, 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] [2022-11-16 11:48:01,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:48:01,115 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:48:01,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:01,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1461219807, now seen corresponding path program 1 times [2022-11-16 11:48:01,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:01,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77944526] [2022-11-16 11:48:01,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:01,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:02,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:02,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77944526] [2022-11-16 11:48:02,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77944526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:02,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:02,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:48:02,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091499007] [2022-11-16 11:48:02,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:02,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:48:02,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:02,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:48:02,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:48:02,008 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 97 [2022-11-16 11:48:02,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 101 transitions, 439 flow. Second operand has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 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) [2022-11-16 11:48:02,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:02,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 97 [2022-11-16 11:48:02,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:02,252 INFO L130 PetriNetUnfolder]: 19/248 cut-off events. [2022-11-16 11:48:02,252 INFO L131 PetriNetUnfolder]: For 439/439 co-relation queries the response was YES. [2022-11-16 11:48:02,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 248 events. 19/248 cut-off events. For 439/439 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1137 event pairs, 2 based on Foata normal form. 1/240 useless extension candidates. Maximal degree in co-relation 643. Up to 40 conditions per place. [2022-11-16 11:48:02,254 INFO L137 encePairwiseOnDemand]: 85/97 looper letters, 20 selfloop transitions, 8 changer transitions 30/113 dead transitions. [2022-11-16 11:48:02,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 113 transitions, 608 flow [2022-11-16 11:48:02,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:48:02,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 11:48:02,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 495 transitions. [2022-11-16 11:48:02,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7290132547864506 [2022-11-16 11:48:02,258 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 495 transitions. [2022-11-16 11:48:02,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 495 transitions. [2022-11-16 11:48:02,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:02,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 495 transitions. [2022-11-16 11:48:02,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 70.71428571428571) internal successors, (495), 7 states have internal predecessors, (495), 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) [2022-11-16 11:48:02,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 97.0) internal successors, (776), 8 states have internal predecessors, (776), 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) [2022-11-16 11:48:02,266 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 97.0) internal successors, (776), 8 states have internal predecessors, (776), 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) [2022-11-16 11:48:02,266 INFO L175 Difference]: Start difference. First operand has 141 places, 101 transitions, 439 flow. Second operand 7 states and 495 transitions. [2022-11-16 11:48:02,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 113 transitions, 608 flow [2022-11-16 11:48:02,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 113 transitions, 509 flow, removed 29 selfloop flow, removed 19 redundant places. [2022-11-16 11:48:02,272 INFO L231 Difference]: Finished difference. Result has 128 places, 82 transitions, 268 flow [2022-11-16 11:48:02,274 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=268, PETRI_PLACES=128, PETRI_TRANSITIONS=82} [2022-11-16 11:48:02,274 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 28 predicate places. [2022-11-16 11:48:02,275 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 82 transitions, 268 flow [2022-11-16 11:48:02,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.85714285714286) internal successors, (482), 7 states have internal predecessors, (482), 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) [2022-11-16 11:48:02,275 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:02,276 INFO L209 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, 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] [2022-11-16 11:48:02,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:48:02,276 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-16 11:48:02,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:02,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1155940217, now seen corresponding path program 2 times [2022-11-16 11:48:02,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:02,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776483165] [2022-11-16 11:48:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:02,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:05,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:05,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776483165] [2022-11-16 11:48:05,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776483165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:05,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:05,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 11:48:05,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244134929] [2022-11-16 11:48:05,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:05,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 11:48:05,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:05,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 11:48:05,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-11-16 11:48:05,901 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 97 [2022-11-16 11:48:05,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 82 transitions, 268 flow. Second operand has 17 states, 17 states have (on average 67.52941176470588) internal successors, (1148), 17 states have internal predecessors, (1148), 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) [2022-11-16 11:48:05,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:05,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 97 [2022-11-16 11:48:05,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:06,332 INFO L130 PetriNetUnfolder]: 2/87 cut-off events. [2022-11-16 11:48:06,332 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-11-16 11:48:06,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 87 events. 2/87 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 170. Up to 5 conditions per place. [2022-11-16 11:48:06,332 INFO L137 encePairwiseOnDemand]: 82/97 looper letters, 0 selfloop transitions, 0 changer transitions 81/81 dead transitions. [2022-11-16 11:48:06,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 81 transitions, 318 flow [2022-11-16 11:48:06,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:48:06,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 11:48:06,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1083 transitions. [2022-11-16 11:48:06,335 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6978092783505154 [2022-11-16 11:48:06,335 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1083 transitions. [2022-11-16 11:48:06,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1083 transitions. [2022-11-16 11:48:06,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:06,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1083 transitions. [2022-11-16 11:48:06,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 67.6875) internal successors, (1083), 16 states have internal predecessors, (1083), 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) [2022-11-16 11:48:06,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 97.0) internal successors, (1649), 17 states have internal predecessors, (1649), 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) [2022-11-16 11:48:06,342 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 97.0) internal successors, (1649), 17 states have internal predecessors, (1649), 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) [2022-11-16 11:48:06,342 INFO L175 Difference]: Start difference. First operand has 128 places, 82 transitions, 268 flow. Second operand 16 states and 1083 transitions. [2022-11-16 11:48:06,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 81 transitions, 318 flow [2022-11-16 11:48:06,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 81 transitions, 232 flow, removed 13 selfloop flow, removed 25 redundant places. [2022-11-16 11:48:06,344 INFO L231 Difference]: Finished difference. Result has 104 places, 0 transitions, 0 flow [2022-11-16 11:48:06,344 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=104, PETRI_TRANSITIONS=0} [2022-11-16 11:48:06,345 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, 4 predicate places. [2022-11-16 11:48:06,345 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 0 transitions, 0 flow [2022-11-16 11:48:06,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 67.52941176470588) internal successors, (1148), 17 states have internal predecessors, (1148), 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) [2022-11-16 11:48:06,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-11-16 11:48:06,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-11-16 11:48:06,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-11-16 11:48:06,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-11-16 11:48:06,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-11-16 11:48:06,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:48:06,350 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1] [2022-11-16 11:48:06,355 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:48:06,355 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:48:06,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:48:06 BasicIcfg [2022-11-16 11:48:06,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:48:06,360 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:48:06,360 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:48:06,361 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:48:06,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:47:41" (3/4) ... [2022-11-16 11:48:06,364 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:48:06,369 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-16 11:48:06,369 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-16 11:48:06,373 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-11-16 11:48:06,374 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-16 11:48:06,374 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:48:06,374 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:48:06,408 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:48:06,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:48:06,409 INFO L158 Benchmark]: Toolchain (without parser) took 27340.96ms. Allocated memory was 113.2MB in the beginning and 482.3MB in the end (delta: 369.1MB). Free memory was 79.5MB in the beginning and 241.2MB in the end (delta: -161.7MB). Peak memory consumption was 205.8MB. Max. memory is 16.1GB. [2022-11-16 11:48:06,409 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:48:06,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 831.04ms. Allocated memory is still 113.2MB. Free memory was 79.3MB in the beginning and 74.0MB in the end (delta: 5.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:48:06,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.61ms. Allocated memory is still 113.2MB. Free memory was 73.6MB in the beginning and 70.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:48:06,410 INFO L158 Benchmark]: Boogie Preprocessor took 35.04ms. Allocated memory is still 113.2MB. Free memory was 70.7MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:48:06,410 INFO L158 Benchmark]: RCFGBuilder took 1063.93ms. Allocated memory was 113.2MB in the beginning and 155.2MB in the end (delta: 41.9MB). Free memory was 68.6MB in the beginning and 102.8MB in the end (delta: -34.3MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2022-11-16 11:48:06,411 INFO L158 Benchmark]: TraceAbstraction took 25270.69ms. Allocated memory was 155.2MB in the beginning and 482.3MB in the end (delta: 327.2MB). Free memory was 102.8MB in the beginning and 244.3MB in the end (delta: -141.5MB). Peak memory consumption was 185.7MB. Max. memory is 16.1GB. [2022-11-16 11:48:06,411 INFO L158 Benchmark]: Witness Printer took 47.99ms. Allocated memory is still 482.3MB. Free memory was 244.3MB in the beginning and 241.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:48:06,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 831.04ms. Allocated memory is still 113.2MB. Free memory was 79.3MB in the beginning and 74.0MB in the end (delta: 5.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.61ms. Allocated memory is still 113.2MB. Free memory was 73.6MB in the beginning and 70.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.04ms. Allocated memory is still 113.2MB. Free memory was 70.7MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1063.93ms. Allocated memory was 113.2MB in the beginning and 155.2MB in the end (delta: 41.9MB). Free memory was 68.6MB in the beginning and 102.8MB in the end (delta: -34.3MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * TraceAbstraction took 25270.69ms. Allocated memory was 155.2MB in the beginning and 482.3MB in the end (delta: 327.2MB). Free memory was 102.8MB in the beginning and 244.3MB in the end (delta: -141.5MB). Peak memory consumption was 185.7MB. Max. memory is 16.1GB. * Witness Printer took 47.99ms. Allocated memory is still 482.3MB. Free memory was 244.3MB in the beginning and 241.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 18]: 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 5 procedures, 117 locations, 5 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: 25.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 490 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 490 mSDsluCounter, 838 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 688 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1534 IncrementalHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 150 mSDtfsCounter, 1534 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=539occurred in iteration=8, InterpolantAutomatonStates: 133, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 765 NumberOfCodeBlocks, 765 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 754 ConstructedInterpolants, 0 QuantifiedInterpolants, 6414 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:48:06,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d100c2e-5412-4606-97e8-d8ce2492d38b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE