./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --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 2bbc774c97831725ad05d6c2dc910981cb4ce0a2559ec0561efc45418b96b7a4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:19,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:20,022 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:06:20,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:20,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:20,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:20,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:20,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:20,085 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:06:20,087 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:06:20,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:20,088 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:20,089 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:20,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:20,090 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:20,091 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:20,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:06:20,092 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:20,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:20,093 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:20,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:20,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:06:20,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:20,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:06:20,100 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:20,100 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:20,100 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:20,101 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:20,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:20,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:20,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:06:20,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:20,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:20,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:20,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:20,107 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:06:20,107 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:20,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:20,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:20,108 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:20,109 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:20,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:20,111 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bbc774c97831725ad05d6c2dc910981cb4ce0a2559ec0561efc45418b96b7a4 [2024-10-31 22:06:20,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:20,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:20,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:20,503 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:20,503 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:20,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i Unable to find full path for "g++" [2024-10-31 22:06:22,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:22,956 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:22,957 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-10-31 22:06:22,985 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/data/fd5a3a0af/4c62d818fd574da3bab6e94cbe027d5c/FLAG5f972d979 [2024-10-31 22:06:23,006 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/data/fd5a3a0af/4c62d818fd574da3bab6e94cbe027d5c [2024-10-31 22:06:23,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:23,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:23,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:23,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:23,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:23,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@177f6ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23, skipping insertion in model container [2024-10-31 22:06:23,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,079 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:23,313 WARN L251 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_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i[978,991] [2024-10-31 22:06:23,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:23,663 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:23,680 WARN L251 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_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/sv-benchmarks/c/pthread-wmm/safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i[978,991] [2024-10-31 22:06:23,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:23,787 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:23,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23 WrapperNode [2024-10-31 22:06:23,789 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:23,790 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:23,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:23,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:23,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,869 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 133 [2024-10-31 22:06:23,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:23,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:23,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:23,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:23,891 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,923 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:06:23,923 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,924 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,954 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:06:23,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:06:23,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:06:23,956 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:06:23,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (1/1) ... [2024-10-31 22:06:23,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:23,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:06:23,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:06:24,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b467dc6-c8b1-47b0-9578-da6bfe316c4b/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:06:24,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:06:24,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:06:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:06:24,035 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:06:24,035 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:06:24,036 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:06:24,036 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:06:24,036 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:06:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:06:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:06:24,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:06:24,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:06:24,041 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:06:24,204 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:06:24,207 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:06:24,643 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:06:24,643 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:06:24,948 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:06:24,949 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:06:24,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:24 BoogieIcfgContainer [2024-10-31 22:06:24,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:06:24,952 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:06:24,952 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:06:24,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:06:24,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:23" (1/3) ... [2024-10-31 22:06:24,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48273a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:24, skipping insertion in model container [2024-10-31 22:06:24,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:23" (2/3) ... [2024-10-31 22:06:24,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48273a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:06:24, skipping insertion in model container [2024-10-31 22:06:24,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:06:24" (3/3) ... [2024-10-31 22:06:24,960 INFO L112 eAbstractionObserver]: Analyzing ICFG safe011_power.oepc_pso.oepc_rmo.oepc_rmo.opt.i [2024-10-31 22:06:24,982 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:06:24,982 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:06:24,983 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:06:25,042 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:06:25,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 39 transitions, 90 flow [2024-10-31 22:06:25,122 INFO L124 PetriNetUnfolderBase]: 1/36 cut-off events. [2024-10-31 22:06:25,122 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:25,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 67 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-10-31 22:06:25,129 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 39 transitions, 90 flow [2024-10-31 22:06:25,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 36 transitions, 81 flow [2024-10-31 22:06:25,148 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:06:25,160 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@733f23b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:06:25,160 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-31 22:06:25,164 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:06:25,165 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-31 22:06:25,165 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:06:25,165 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:25,166 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:06:25,166 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:25,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:25,173 INFO L85 PathProgramCache]: Analyzing trace with hash 10922588, now seen corresponding path program 1 times [2024-10-31 22:06:25,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:25,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782756198] [2024-10-31 22:06:25,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:25,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:25,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:25,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782756198] [2024-10-31 22:06:25,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782756198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:25,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:25,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:06:25,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506187576] [2024-10-31 22:06:25,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:25,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:06:25,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:25,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:06:25,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:06:25,929 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 39 [2024-10-31 22:06:25,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-10-31 22:06:25,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:25,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 39 [2024-10-31 22:06:25,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:26,533 INFO L124 PetriNetUnfolderBase]: 530/980 cut-off events. [2024-10-31 22:06:26,533 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-31 22:06:26,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1834 conditions, 980 events. 530/980 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5509 event pairs, 284 based on Foata normal form. 36/994 useless extension candidates. Maximal degree in co-relation 1823. Up to 664 conditions per place. [2024-10-31 22:06:26,544 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 29 selfloop transitions, 2 changer transitions 2/48 dead transitions. [2024-10-31 22:06:26,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 177 flow [2024-10-31 22:06:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:06:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:06:26,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2024-10-31 22:06:26,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2024-10-31 22:06:26,562 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 81 flow. Second operand 3 states and 90 transitions. [2024-10-31 22:06:26,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 177 flow [2024-10-31 22:06:26,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 48 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:06:26,571 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 76 flow [2024-10-31 22:06:26,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2024-10-31 22:06:26,581 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2024-10-31 22:06:26,582 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 76 flow [2024-10-31 22:06:26,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-10-31 22:06:26,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:26,583 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:26,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:06:26,584 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:26,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:26,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1679189843, now seen corresponding path program 1 times [2024-10-31 22:06:26,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:26,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239698748] [2024-10-31 22:06:26,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:26,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:28,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:28,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:28,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239698748] [2024-10-31 22:06:28,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239698748] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:28,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:28,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:28,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132204083] [2024-10-31 22:06:28,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:28,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:28,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:28,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:28,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:28,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 39 [2024-10-31 22:06:28,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2024-10-31 22:06:28,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:28,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 39 [2024-10-31 22:06:28,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:29,746 INFO L124 PetriNetUnfolderBase]: 2216/3644 cut-off events. [2024-10-31 22:06:29,747 INFO L125 PetriNetUnfolderBase]: For 170/170 co-relation queries the response was YES. [2024-10-31 22:06:29,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7151 conditions, 3644 events. 2216/3644 cut-off events. For 170/170 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 23354 event pairs, 299 based on Foata normal form. 0/3553 useless extension candidates. Maximal degree in co-relation 7141. Up to 1815 conditions per place. [2024-10-31 22:06:29,780 INFO L140 encePairwiseOnDemand]: 27/39 looper letters, 41 selfloop transitions, 10 changer transitions 72/133 dead transitions. [2024-10-31 22:06:29,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 133 transitions, 542 flow [2024-10-31 22:06:29,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:06:29,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:06:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 282 transitions. [2024-10-31 22:06:29,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6025641025641025 [2024-10-31 22:06:29,790 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 76 flow. Second operand 12 states and 282 transitions. [2024-10-31 22:06:29,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 133 transitions, 542 flow [2024-10-31 22:06:29,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 133 transitions, 526 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:06:29,795 INFO L231 Difference]: Finished difference. Result has 60 places, 40 transitions, 169 flow [2024-10-31 22:06:29,797 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=169, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2024-10-31 22:06:29,798 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 15 predicate places. [2024-10-31 22:06:29,798 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 40 transitions, 169 flow [2024-10-31 22:06:29,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2024-10-31 22:06:29,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:29,799 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:29,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:06:29,800 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:29,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:29,802 INFO L85 PathProgramCache]: Analyzing trace with hash -417730636, now seen corresponding path program 1 times [2024-10-31 22:06:29,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:29,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839815741] [2024-10-31 22:06:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:29,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:30,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:30,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:30,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839815741] [2024-10-31 22:06:30,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839815741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:30,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:30,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:06:30,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549644713] [2024-10-31 22:06:30,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:30,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:30,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:30,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:30,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:30,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 39 [2024-10-31 22:06:30,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 40 transitions, 169 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-10-31 22:06:30,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:30,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 39 [2024-10-31 22:06:30,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:30,931 INFO L124 PetriNetUnfolderBase]: 1342/2357 cut-off events. [2024-10-31 22:06:30,932 INFO L125 PetriNetUnfolderBase]: For 5932/6032 co-relation queries the response was YES. [2024-10-31 22:06:30,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8251 conditions, 2357 events. 1342/2357 cut-off events. For 5932/6032 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 15229 event pairs, 220 based on Foata normal form. 127/2425 useless extension candidates. Maximal degree in co-relation 8232. Up to 1268 conditions per place. [2024-10-31 22:06:30,952 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 41 selfloop transitions, 8 changer transitions 28/92 dead transitions. [2024-10-31 22:06:30,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 92 transitions, 602 flow [2024-10-31 22:06:30,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:06:30,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:06:30,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 164 transitions. [2024-10-31 22:06:30,954 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6007326007326007 [2024-10-31 22:06:30,954 INFO L175 Difference]: Start difference. First operand has 60 places, 40 transitions, 169 flow. Second operand 7 states and 164 transitions. [2024-10-31 22:06:30,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 92 transitions, 602 flow [2024-10-31 22:06:30,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 92 transitions, 550 flow, removed 26 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:30,977 INFO L231 Difference]: Finished difference. Result has 55 places, 45 transitions, 215 flow [2024-10-31 22:06:30,978 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=215, PETRI_PLACES=55, PETRI_TRANSITIONS=45} [2024-10-31 22:06:30,978 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 10 predicate places. [2024-10-31 22:06:30,979 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 215 flow [2024-10-31 22:06:30,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-10-31 22:06:30,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:30,979 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:30,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:06:30,980 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:30,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:30,980 INFO L85 PathProgramCache]: Analyzing trace with hash -609637483, now seen corresponding path program 1 times [2024-10-31 22:06:30,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:30,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410439693] [2024-10-31 22:06:30,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:30,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:31,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:31,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410439693] [2024-10-31 22:06:31,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410439693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:31,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:31,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:31,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621397129] [2024-10-31 22:06:31,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:31,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:31,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:31,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:31,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:31,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2024-10-31 22:06:31,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 45 transitions, 215 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2024-10-31 22:06:31,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:31,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2024-10-31 22:06:31,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:33,599 INFO L124 PetriNetUnfolderBase]: 2594/4236 cut-off events. [2024-10-31 22:06:33,599 INFO L125 PetriNetUnfolderBase]: For 6860/6862 co-relation queries the response was YES. [2024-10-31 22:06:33,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13741 conditions, 4236 events. 2594/4236 cut-off events. For 6860/6862 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 27174 event pairs, 271 based on Foata normal form. 93/4317 useless extension candidates. Maximal degree in co-relation 13722. Up to 1887 conditions per place. [2024-10-31 22:06:33,700 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 58 selfloop transitions, 27 changer transitions 94/188 dead transitions. [2024-10-31 22:06:33,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 188 transitions, 1267 flow [2024-10-31 22:06:33,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-31 22:06:33,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-31 22:06:33,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 302 transitions. [2024-10-31 22:06:33,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5956607495069034 [2024-10-31 22:06:33,702 INFO L175 Difference]: Start difference. First operand has 55 places, 45 transitions, 215 flow. Second operand 13 states and 302 transitions. [2024-10-31 22:06:33,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 188 transitions, 1267 flow [2024-10-31 22:06:33,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 188 transitions, 1267 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:06:33,712 INFO L231 Difference]: Finished difference. Result has 79 places, 60 transitions, 483 flow [2024-10-31 22:06:33,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=483, PETRI_PLACES=79, PETRI_TRANSITIONS=60} [2024-10-31 22:06:33,713 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 34 predicate places. [2024-10-31 22:06:33,713 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 60 transitions, 483 flow [2024-10-31 22:06:33,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2024-10-31 22:06:33,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:33,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:33,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:06:33,714 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:33,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:33,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1622333237, now seen corresponding path program 2 times [2024-10-31 22:06:33,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:33,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834462376] [2024-10-31 22:06:33,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:33,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:34,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:34,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:34,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834462376] [2024-10-31 22:06:34,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834462376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:34,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:34,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:06:34,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530892054] [2024-10-31 22:06:34,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:34,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:34,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:34,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:34,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:34,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2024-10-31 22:06:34,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 60 transitions, 483 flow. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2024-10-31 22:06:34,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:34,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2024-10-31 22:06:34,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:35,903 INFO L124 PetriNetUnfolderBase]: 2363/3851 cut-off events. [2024-10-31 22:06:35,903 INFO L125 PetriNetUnfolderBase]: For 28308/28312 co-relation queries the response was YES. [2024-10-31 22:06:35,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19711 conditions, 3851 events. 2363/3851 cut-off events. For 28308/28312 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 23919 event pairs, 353 based on Foata normal form. 82/3916 useless extension candidates. Maximal degree in co-relation 19678. Up to 1446 conditions per place. [2024-10-31 22:06:35,958 INFO L140 encePairwiseOnDemand]: 28/39 looper letters, 54 selfloop transitions, 10 changer transitions 68/141 dead transitions. [2024-10-31 22:06:35,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 141 transitions, 1508 flow [2024-10-31 22:06:35,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:06:35,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:06:35,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 202 transitions. [2024-10-31 22:06:35,961 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5754985754985755 [2024-10-31 22:06:35,961 INFO L175 Difference]: Start difference. First operand has 79 places, 60 transitions, 483 flow. Second operand 9 states and 202 transitions. [2024-10-31 22:06:35,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 141 transitions, 1508 flow [2024-10-31 22:06:36,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 141 transitions, 1448 flow, removed 24 selfloop flow, removed 6 redundant places. [2024-10-31 22:06:36,048 INFO L231 Difference]: Finished difference. Result has 77 places, 51 transitions, 418 flow [2024-10-31 22:06:36,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=418, PETRI_PLACES=77, PETRI_TRANSITIONS=51} [2024-10-31 22:06:36,049 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 32 predicate places. [2024-10-31 22:06:36,050 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 51 transitions, 418 flow [2024-10-31 22:06:36,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 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) [2024-10-31 22:06:36,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:36,051 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:36,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:06:36,051 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:36,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:36,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1830961084, now seen corresponding path program 1 times [2024-10-31 22:06:36,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:36,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160840235] [2024-10-31 22:06:36,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:36,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:36,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:36,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:36,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160840235] [2024-10-31 22:06:36,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160840235] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:36,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:36,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:36,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157072848] [2024-10-31 22:06:36,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:36,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:36,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:36,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:36,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:36,641 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 39 [2024-10-31 22:06:36,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 51 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2024-10-31 22:06:36,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:36,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 39 [2024-10-31 22:06:36,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:37,355 INFO L124 PetriNetUnfolderBase]: 1322/2249 cut-off events. [2024-10-31 22:06:37,355 INFO L125 PetriNetUnfolderBase]: For 19913/20075 co-relation queries the response was YES. [2024-10-31 22:06:37,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12064 conditions, 2249 events. 1322/2249 cut-off events. For 19913/20075 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 13014 event pairs, 553 based on Foata normal form. 216/2437 useless extension candidates. Maximal degree in co-relation 12038. Up to 1514 conditions per place. [2024-10-31 22:06:37,378 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 38 selfloop transitions, 4 changer transitions 33/95 dead transitions. [2024-10-31 22:06:37,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 95 transitions, 958 flow [2024-10-31 22:06:37,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:06:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:06:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 165 transitions. [2024-10-31 22:06:37,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6043956043956044 [2024-10-31 22:06:37,380 INFO L175 Difference]: Start difference. First operand has 77 places, 51 transitions, 418 flow. Second operand 7 states and 165 transitions. [2024-10-31 22:06:37,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 95 transitions, 958 flow [2024-10-31 22:06:37,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 95 transitions, 887 flow, removed 15 selfloop flow, removed 10 redundant places. [2024-10-31 22:06:37,404 INFO L231 Difference]: Finished difference. Result has 74 places, 53 transitions, 417 flow [2024-10-31 22:06:37,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=417, PETRI_PLACES=74, PETRI_TRANSITIONS=53} [2024-10-31 22:06:37,407 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2024-10-31 22:06:37,407 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 53 transitions, 417 flow [2024-10-31 22:06:37,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2024-10-31 22:06:37,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:37,408 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:37,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:06:37,408 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:37,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:37,408 INFO L85 PathProgramCache]: Analyzing trace with hash 804089851, now seen corresponding path program 1 times [2024-10-31 22:06:37,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:37,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957254652] [2024-10-31 22:06:37,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:37,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:37,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:38,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:38,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957254652] [2024-10-31 22:06:38,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957254652] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:38,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:38,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:38,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304632918] [2024-10-31 22:06:38,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:38,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:38,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:38,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:38,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:38,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2024-10-31 22:06:38,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 53 transitions, 417 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-10-31 22:06:38,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:38,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2024-10-31 22:06:38,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:39,556 INFO L124 PetriNetUnfolderBase]: 1444/2376 cut-off events. [2024-10-31 22:06:39,556 INFO L125 PetriNetUnfolderBase]: For 17771/17771 co-relation queries the response was YES. [2024-10-31 22:06:39,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12752 conditions, 2376 events. 1444/2376 cut-off events. For 17771/17771 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 13056 event pairs, 527 based on Foata normal form. 53/2427 useless extension candidates. Maximal degree in co-relation 12728. Up to 1462 conditions per place. [2024-10-31 22:06:39,580 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 52 selfloop transitions, 23 changer transitions 38/123 dead transitions. [2024-10-31 22:06:39,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 123 transitions, 1214 flow [2024-10-31 22:06:39,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:06:39,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:06:39,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 235 transitions. [2024-10-31 22:06:39,582 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5477855477855478 [2024-10-31 22:06:39,583 INFO L175 Difference]: Start difference. First operand has 74 places, 53 transitions, 417 flow. Second operand 11 states and 235 transitions. [2024-10-31 22:06:39,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 123 transitions, 1214 flow [2024-10-31 22:06:39,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 123 transitions, 1181 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-10-31 22:06:39,616 INFO L231 Difference]: Finished difference. Result has 84 places, 55 transitions, 490 flow [2024-10-31 22:06:39,616 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=490, PETRI_PLACES=84, PETRI_TRANSITIONS=55} [2024-10-31 22:06:39,617 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2024-10-31 22:06:39,617 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 55 transitions, 490 flow [2024-10-31 22:06:39,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-10-31 22:06:39,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:39,618 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:39,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:06:39,618 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:39,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:39,619 INFO L85 PathProgramCache]: Analyzing trace with hash -258843994, now seen corresponding path program 1 times [2024-10-31 22:06:39,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:39,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097856530] [2024-10-31 22:06:39,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:39,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:41,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:41,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:41,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097856530] [2024-10-31 22:06:41,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097856530] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:41,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:41,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:06:41,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529606473] [2024-10-31 22:06:41,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:41,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:06:41,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:41,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:06:41,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:06:41,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2024-10-31 22:06:41,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 55 transitions, 490 flow. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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) [2024-10-31 22:06:41,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:41,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2024-10-31 22:06:41,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:42,275 INFO L124 PetriNetUnfolderBase]: 1496/2468 cut-off events. [2024-10-31 22:06:42,276 INFO L125 PetriNetUnfolderBase]: For 21505/21505 co-relation queries the response was YES. [2024-10-31 22:06:42,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14014 conditions, 2468 events. 1496/2468 cut-off events. For 21505/21505 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 13711 event pairs, 416 based on Foata normal form. 60/2523 useless extension candidates. Maximal degree in co-relation 13985. Up to 1546 conditions per place. [2024-10-31 22:06:42,304 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 66 selfloop transitions, 34 changer transitions 53/163 dead transitions. [2024-10-31 22:06:42,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 163 transitions, 1913 flow [2024-10-31 22:06:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:06:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:06:42,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 260 transitions. [2024-10-31 22:06:42,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-31 22:06:42,306 INFO L175 Difference]: Start difference. First operand has 84 places, 55 transitions, 490 flow. Second operand 12 states and 260 transitions. [2024-10-31 22:06:42,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 163 transitions, 1913 flow [2024-10-31 22:06:42,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 163 transitions, 1773 flow, removed 22 selfloop flow, removed 8 redundant places. [2024-10-31 22:06:42,349 INFO L231 Difference]: Finished difference. Result has 91 places, 79 transitions, 911 flow [2024-10-31 22:06:42,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=911, PETRI_PLACES=91, PETRI_TRANSITIONS=79} [2024-10-31 22:06:42,350 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 46 predicate places. [2024-10-31 22:06:42,351 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 79 transitions, 911 flow [2024-10-31 22:06:42,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 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) [2024-10-31 22:06:42,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:42,351 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:06:42,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:06:42,352 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:42,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:42,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1824752836, now seen corresponding path program 2 times [2024-10-31 22:06:42,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:42,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269126178] [2024-10-31 22:06:42,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:42,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:42,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:42,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:42,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269126178] [2024-10-31 22:06:42,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269126178] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:42,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:42,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:06:42,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722817984] [2024-10-31 22:06:42,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:42,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:06:42,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:42,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:06:42,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:06:42,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-10-31 22:06:42,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 911 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-10-31 22:06:42,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:42,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-10-31 22:06:42,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:43,424 INFO L124 PetriNetUnfolderBase]: 2129/3334 cut-off events. [2024-10-31 22:06:43,425 INFO L125 PetriNetUnfolderBase]: For 55648/56714 co-relation queries the response was YES. [2024-10-31 22:06:43,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20181 conditions, 3334 events. 2129/3334 cut-off events. For 55648/56714 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 18218 event pairs, 323 based on Foata normal form. 607/3763 useless extension candidates. Maximal degree in co-relation 20149. Up to 1615 conditions per place. [2024-10-31 22:06:43,461 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 70 selfloop transitions, 5 changer transitions 0/99 dead transitions. [2024-10-31 22:06:43,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 99 transitions, 1260 flow [2024-10-31 22:06:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:06:43,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:06:43,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-10-31 22:06:43,463 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6602564102564102 [2024-10-31 22:06:43,463 INFO L175 Difference]: Start difference. First operand has 91 places, 79 transitions, 911 flow. Second operand 4 states and 103 transitions. [2024-10-31 22:06:43,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 99 transitions, 1260 flow [2024-10-31 22:06:43,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 99 transitions, 1180 flow, removed 36 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:43,517 INFO L231 Difference]: Finished difference. Result has 85 places, 70 transitions, 726 flow [2024-10-31 22:06:43,517 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=726, PETRI_PLACES=85, PETRI_TRANSITIONS=70} [2024-10-31 22:06:43,518 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 40 predicate places. [2024-10-31 22:06:43,519 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 70 transitions, 726 flow [2024-10-31 22:06:43,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-10-31 22:06:43,519 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:43,519 INFO L204 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] [2024-10-31 22:06:43,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:06:43,520 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:43,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:43,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1023790037, now seen corresponding path program 1 times [2024-10-31 22:06:43,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:43,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084239113] [2024-10-31 22:06:43,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:43,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:44,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:44,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:44,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084239113] [2024-10-31 22:06:44,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084239113] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:44,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:44,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:06:44,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547189479] [2024-10-31 22:06:44,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:44,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:06:44,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:44,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:06:44,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:06:44,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 39 [2024-10-31 22:06:44,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 70 transitions, 726 flow. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 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) [2024-10-31 22:06:44,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:44,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 39 [2024-10-31 22:06:44,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:45,488 INFO L124 PetriNetUnfolderBase]: 1369/2412 cut-off events. [2024-10-31 22:06:45,488 INFO L125 PetriNetUnfolderBase]: For 23480/23845 co-relation queries the response was YES. [2024-10-31 22:06:45,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13239 conditions, 2412 events. 1369/2412 cut-off events. For 23480/23845 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 14544 event pairs, 645 based on Foata normal form. 286/2577 useless extension candidates. Maximal degree in co-relation 13208. Up to 1652 conditions per place. [2024-10-31 22:06:45,512 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 48 selfloop transitions, 15 changer transitions 27/117 dead transitions. [2024-10-31 22:06:45,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 117 transitions, 1360 flow [2024-10-31 22:06:45,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:06:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:06:45,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 185 transitions. [2024-10-31 22:06:45,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.592948717948718 [2024-10-31 22:06:45,514 INFO L175 Difference]: Start difference. First operand has 85 places, 70 transitions, 726 flow. Second operand 8 states and 185 transitions. [2024-10-31 22:06:45,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 117 transitions, 1360 flow [2024-10-31 22:06:45,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 117 transitions, 1294 flow, removed 32 selfloop flow, removed 5 redundant places. [2024-10-31 22:06:45,543 INFO L231 Difference]: Finished difference. Result has 92 places, 73 transitions, 806 flow [2024-10-31 22:06:45,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=806, PETRI_PLACES=92, PETRI_TRANSITIONS=73} [2024-10-31 22:06:45,544 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 47 predicate places. [2024-10-31 22:06:45,544 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 73 transitions, 806 flow [2024-10-31 22:06:45,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 8 states have internal predecessors, (134), 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) [2024-10-31 22:06:45,544 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:45,544 INFO L204 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] [2024-10-31 22:06:45,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:06:45,545 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:45,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:45,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1011134156, now seen corresponding path program 1 times [2024-10-31 22:06:45,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:45,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190345439] [2024-10-31 22:06:45,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:45,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:45,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:45,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190345439] [2024-10-31 22:06:45,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190345439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:45,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:45,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:06:45,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454445666] [2024-10-31 22:06:45,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:45,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:06:45,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:45,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:06:45,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:06:45,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-10-31 22:06:45,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 73 transitions, 806 flow. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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) [2024-10-31 22:06:45,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:45,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-10-31 22:06:45,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:46,353 INFO L124 PetriNetUnfolderBase]: 1628/2568 cut-off events. [2024-10-31 22:06:46,354 INFO L125 PetriNetUnfolderBase]: For 35616/36343 co-relation queries the response was YES. [2024-10-31 22:06:46,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14956 conditions, 2568 events. 1628/2568 cut-off events. For 35616/36343 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 13283 event pairs, 213 based on Foata normal form. 323/2722 useless extension candidates. Maximal degree in co-relation 14924. Up to 997 conditions per place. [2024-10-31 22:06:46,372 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 81 selfloop transitions, 8 changer transitions 0/114 dead transitions. [2024-10-31 22:06:46,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 114 transitions, 1416 flow [2024-10-31 22:06:46,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:06:46,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:06:46,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-10-31 22:06:46,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6717948717948717 [2024-10-31 22:06:46,374 INFO L175 Difference]: Start difference. First operand has 92 places, 73 transitions, 806 flow. Second operand 5 states and 131 transitions. [2024-10-31 22:06:46,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 114 transitions, 1416 flow [2024-10-31 22:06:46,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 114 transitions, 1362 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-10-31 22:06:46,419 INFO L231 Difference]: Finished difference. Result has 90 places, 76 transitions, 804 flow [2024-10-31 22:06:46,419 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=804, PETRI_PLACES=90, PETRI_TRANSITIONS=76} [2024-10-31 22:06:46,420 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 45 predicate places. [2024-10-31 22:06:46,424 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 76 transitions, 804 flow [2024-10-31 22:06:46,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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) [2024-10-31 22:06:46,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:46,424 INFO L204 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] [2024-10-31 22:06:46,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:06:46,425 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:46,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:46,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1423838541, now seen corresponding path program 1 times [2024-10-31 22:06:46,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:46,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879314413] [2024-10-31 22:06:46,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:46,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:06:46,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:06:46,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:06:46,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879314413] [2024-10-31 22:06:46,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879314413] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:06:46,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:06:46,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:06:46,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764792603] [2024-10-31 22:06:46,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:06:46,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:06:46,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:06:46,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:06:46,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:06:46,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-10-31 22:06:46,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 76 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-10-31 22:06:46,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:06:46,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-10-31 22:06:46,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:06:47,298 INFO L124 PetriNetUnfolderBase]: 1324/2056 cut-off events. [2024-10-31 22:06:47,298 INFO L125 PetriNetUnfolderBase]: For 31567/32254 co-relation queries the response was YES. [2024-10-31 22:06:47,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12383 conditions, 2056 events. 1324/2056 cut-off events. For 31567/32254 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 10308 event pairs, 197 based on Foata normal form. 233/2124 useless extension candidates. Maximal degree in co-relation 12351. Up to 813 conditions per place. [2024-10-31 22:06:47,313 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 73 selfloop transitions, 11 changer transitions 1/110 dead transitions. [2024-10-31 22:06:47,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 110 transitions, 1285 flow [2024-10-31 22:06:47,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:06:47,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:06:47,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 143 transitions. [2024-10-31 22:06:47,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-10-31 22:06:47,315 INFO L175 Difference]: Start difference. First operand has 90 places, 76 transitions, 804 flow. Second operand 6 states and 143 transitions. [2024-10-31 22:06:47,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 110 transitions, 1285 flow [2024-10-31 22:06:47,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 110 transitions, 1172 flow, removed 51 selfloop flow, removed 7 redundant places. [2024-10-31 22:06:47,342 INFO L231 Difference]: Finished difference. Result has 90 places, 75 transitions, 728 flow [2024-10-31 22:06:47,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=728, PETRI_PLACES=90, PETRI_TRANSITIONS=75} [2024-10-31 22:06:47,343 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 45 predicate places. [2024-10-31 22:06:47,343 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 75 transitions, 728 flow [2024-10-31 22:06:47,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2024-10-31 22:06:47,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:06:47,344 INFO L204 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] [2024-10-31 22:06:47,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:06:47,344 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-31 22:06:47,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:06:47,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1932628143, now seen corresponding path program 1 times [2024-10-31 22:06:47,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:06:47,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661046347] [2024-10-31 22:06:47,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:06:47,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:06:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat