./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/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_72dc32a0-e25f-4da0-a8a3-016a94172c66/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/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_72dc32a0-e25f-4da0-a8a3-016a94172c66/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 bd5019d3aed54929cd262296b7eb8866c696444f31311cf49176222c13f665a6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:19:24,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:19:24,868 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:19:24,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:19:24,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:19:24,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:19:24,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:19:24,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:19:24,919 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:19:24,919 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:19:24,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:19:24,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:19:24,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:19:24,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:19:24,925 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:19:24,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:19:24,926 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:19:24,926 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:19:24,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:19:24,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:19:24,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:19:24,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:19:24,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:19:24,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:19:24,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:19:24,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:19:24,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:19:24,932 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:19:24,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:19:24,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:19:24,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:19:24,936 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:19:24,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:19:24,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:19:24,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:19:24,937 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:19:24,938 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:19:24,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:19:24,939 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:19:24,939 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:19:24,939 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:19:24,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:19:24,940 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_72dc32a0-e25f-4da0-a8a3-016a94172c66/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd5019d3aed54929cd262296b7eb8866c696444f31311cf49176222c13f665a6 [2024-10-31 22:19:25,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:19:25,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:19:25,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:19:25,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:19:25,271 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:19:25,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.i Unable to find full path for "g++" [2024-10-31 22:19:27,348 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:19:27,687 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:19:27,688 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.i [2024-10-31 22:19:27,709 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/bin/uautomizer-verify-4GaUIPS5ZU/data/f413d885c/a545bef3362d482b9fa2f708e00b1d94/FLAGf12000c83 [2024-10-31 22:19:27,923 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/bin/uautomizer-verify-4GaUIPS5ZU/data/f413d885c/a545bef3362d482b9fa2f708e00b1d94 [2024-10-31 22:19:27,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:19:27,928 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:19:27,929 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:27,930 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:19:27,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:19:27,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:27" (1/1) ... [2024-10-31 22:19:27,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733467ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:27, skipping insertion in model container [2024-10-31 22:19:27,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:27" (1/1) ... [2024-10-31 22:19:28,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:19:28,236 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_72dc32a0-e25f-4da0-a8a3-016a94172c66/sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.i[970,983] [2024-10-31 22:19:28,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:28,561 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:19:28,580 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_72dc32a0-e25f-4da0-a8a3-016a94172c66/sv-benchmarks/c/pthread-wmm/safe030_power.oepc_pso.oepc_rmo.oepc.i[970,983] [2024-10-31 22:19:28,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:28,770 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:19:28,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28 WrapperNode [2024-10-31 22:19:28,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:28,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:28,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:19:28,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:19:28,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,850 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 132 [2024-10-31 22:19:28,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:28,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:19:28,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:19:28,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:19:28,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,879 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,913 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 22:19:28,919 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:19:28,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:19:28,958 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:19:28,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:19:28,959 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (1/1) ... [2024-10-31 22:19:28,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:19:28,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:29,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:29,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dc32a0-e25f-4da0-a8a3-016a94172c66/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:19:29,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:19:29,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:19:29,041 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:19:29,041 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:19:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:19:29,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:19:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:19:29,042 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:19:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:19:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:19:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:19:29,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:19:29,047 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 22:19:29,244 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:19:29,246 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:19:29,648 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:19:29,648 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:19:29,980 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:19:29,980 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:19:29,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:29 BoogieIcfgContainer [2024-10-31 22:19:29,981 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:19:29,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:19:29,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:19:29,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:19:29,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:19:27" (1/3) ... [2024-10-31 22:19:29,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a12c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:29, skipping insertion in model container [2024-10-31 22:19:29,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:28" (2/3) ... [2024-10-31 22:19:29,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a12c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:29, skipping insertion in model container [2024-10-31 22:19:29,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:29" (3/3) ... [2024-10-31 22:19:29,998 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_power.oepc_pso.oepc_rmo.oepc.i [2024-10-31 22:19:30,019 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:19:30,019 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:19:30,019 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:19:30,079 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:19:30,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 39 transitions, 90 flow [2024-10-31 22:19:30,144 INFO L124 PetriNetUnfolderBase]: 1/36 cut-off events. [2024-10-31 22:19:30,144 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:19:30,148 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 68 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 22:19:30,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 39 transitions, 90 flow [2024-10-31 22:19:30,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 36 transitions, 81 flow [2024-10-31 22:19:30,170 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:19:30,184 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;@40b7a264, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:19:30,184 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-31 22:19:30,193 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:19:30,193 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-31 22:19:30,193 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:19:30,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:30,194 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:19:30,194 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 22:19:30,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:30,200 INFO L85 PathProgramCache]: Analyzing trace with hash 10861020, now seen corresponding path program 1 times [2024-10-31 22:19:30,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:30,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041346492] [2024-10-31 22:19:30,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:30,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:30,758 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 22:19:30,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:30,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041346492] [2024-10-31 22:19:30,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041346492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:30,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:30,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:19:30,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059396390] [2024-10-31 22:19:30,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:30,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:19:30,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:30,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:19:30,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:19:30,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 39 [2024-10-31 22:19:30,807 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 22:19:30,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:30,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 39 [2024-10-31 22:19:30,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:31,305 INFO L124 PetriNetUnfolderBase]: 530/980 cut-off events. [2024-10-31 22:19:31,305 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-10-31 22:19:31,312 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 5543 event pairs, 284 based on Foata normal form. 36/996 useless extension candidates. Maximal degree in co-relation 1823. Up to 664 conditions per place. [2024-10-31 22:19:31,320 INFO L140 encePairwiseOnDemand]: 35/39 looper letters, 29 selfloop transitions, 2 changer transitions 2/48 dead transitions. [2024-10-31 22:19:31,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 177 flow [2024-10-31 22:19:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:19:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:19:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 90 transitions. [2024-10-31 22:19:31,335 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7692307692307693 [2024-10-31 22:19:31,338 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 81 flow. Second operand 3 states and 90 transitions. [2024-10-31 22:19:31,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 177 flow [2024-10-31 22:19:31,342 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 22:19:31,346 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 76 flow [2024-10-31 22:19:31,348 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 22:19:31,353 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2024-10-31 22:19:31,354 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 76 flow [2024-10-31 22:19:31,354 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 22:19:31,354 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:31,354 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:31,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:19:31,357 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 22:19:31,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:31,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1859281397, now seen corresponding path program 1 times [2024-10-31 22:19:31,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:31,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795195776] [2024-10-31 22:19:31,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:31,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:32,549 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 22:19:32,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:32,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795195776] [2024-10-31 22:19:32,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795195776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:32,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:32,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:19:32,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942384208] [2024-10-31 22:19:32,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:32,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:19:32,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:32,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:19:32,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:19:32,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2024-10-31 22:19:32,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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 22:19:32,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:32,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2024-10-31 22:19:32,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:34,220 INFO L124 PetriNetUnfolderBase]: 3181/5108 cut-off events. [2024-10-31 22:19:34,221 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2024-10-31 22:19:34,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10100 conditions, 5108 events. 3181/5108 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 32514 event pairs, 392 based on Foata normal form. 0/4981 useless extension candidates. Maximal degree in co-relation 10090. Up to 2283 conditions per place. [2024-10-31 22:19:34,247 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 41 selfloop transitions, 12 changer transitions 90/152 dead transitions. [2024-10-31 22:19:34,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 152 transitions, 624 flow [2024-10-31 22:19:34,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:19:34,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:19:34,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 290 transitions. [2024-10-31 22:19:34,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6196581196581197 [2024-10-31 22:19:34,251 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 76 flow. Second operand 12 states and 290 transitions. [2024-10-31 22:19:34,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 152 transitions, 624 flow [2024-10-31 22:19:34,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 152 transitions, 600 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:19:34,256 INFO L231 Difference]: Finished difference. Result has 62 places, 43 transitions, 210 flow [2024-10-31 22:19:34,256 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=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=210, PETRI_PLACES=62, PETRI_TRANSITIONS=43} [2024-10-31 22:19:34,257 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 17 predicate places. [2024-10-31 22:19:34,257 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 43 transitions, 210 flow [2024-10-31 22:19:34,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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 22:19:34,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:34,258 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:34,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:19:34,258 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 22:19:34,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:34,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1342822764, now seen corresponding path program 1 times [2024-10-31 22:19:34,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:34,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760523913] [2024-10-31 22:19:34,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:34,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:34,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:34,528 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 22:19:34,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:34,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760523913] [2024-10-31 22:19:34,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760523913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:34,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:34,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:19:34,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574154892] [2024-10-31 22:19:34,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:34,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:19:34,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:34,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:19:34,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:19:34,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-10-31 22:19:34,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 43 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 22:19:34,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:34,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-10-31 22:19:34,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:35,491 INFO L124 PetriNetUnfolderBase]: 2044/3422 cut-off events. [2024-10-31 22:19:35,492 INFO L125 PetriNetUnfolderBase]: For 9084/9534 co-relation queries the response was YES. [2024-10-31 22:19:35,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12857 conditions, 3422 events. 2044/3422 cut-off events. For 9084/9534 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 21953 event pairs, 646 based on Foata normal form. 140/3480 useless extension candidates. Maximal degree in co-relation 12836. Up to 2345 conditions per place. [2024-10-31 22:19:35,523 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 37 selfloop transitions, 4 changer transitions 43/99 dead transitions. [2024-10-31 22:19:35,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 99 transitions, 748 flow [2024-10-31 22:19:35,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:19:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:19:35,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 164 transitions. [2024-10-31 22:19:35,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6007326007326007 [2024-10-31 22:19:35,529 INFO L175 Difference]: Start difference. First operand has 62 places, 43 transitions, 210 flow. Second operand 7 states and 164 transitions. [2024-10-31 22:19:35,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 99 transitions, 748 flow [2024-10-31 22:19:35,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 99 transitions, 684 flow, removed 32 selfloop flow, removed 4 redundant places. [2024-10-31 22:19:35,560 INFO L231 Difference]: Finished difference. Result has 60 places, 46 transitions, 252 flow [2024-10-31 22:19:35,562 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=252, PETRI_PLACES=60, PETRI_TRANSITIONS=46} [2024-10-31 22:19:35,562 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 15 predicate places. [2024-10-31 22:19:35,563 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 46 transitions, 252 flow [2024-10-31 22:19:35,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 22:19:35,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:35,564 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:35,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:19:35,565 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 22:19:35,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:35,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1915055691, now seen corresponding path program 1 times [2024-10-31 22:19:35,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:35,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864163170] [2024-10-31 22:19:35,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:35,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:35,856 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 22:19:35,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:35,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864163170] [2024-10-31 22:19:35,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864163170] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:35,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:35,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:19:35,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003037912] [2024-10-31 22:19:35,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:35,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:19:35,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:35,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:19:35,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:19:35,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-10-31 22:19:35,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 46 transitions, 252 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 22:19:35,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:35,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-10-31 22:19:35,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:37,131 INFO L124 PetriNetUnfolderBase]: 2857/4767 cut-off events. [2024-10-31 22:19:37,132 INFO L125 PetriNetUnfolderBase]: For 12596/12937 co-relation queries the response was YES. [2024-10-31 22:19:37,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17293 conditions, 4767 events. 2857/4767 cut-off events. For 12596/12937 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 32145 event pairs, 851 based on Foata normal form. 185/4787 useless extension candidates. Maximal degree in co-relation 17269. Up to 2044 conditions per place. [2024-10-31 22:19:37,175 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 43 selfloop transitions, 5 changer transitions 47/111 dead transitions. [2024-10-31 22:19:37,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 111 transitions, 810 flow [2024-10-31 22:19:37,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:19:37,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:19:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 169 transitions. [2024-10-31 22:19:37,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-10-31 22:19:37,177 INFO L175 Difference]: Start difference. First operand has 60 places, 46 transitions, 252 flow. Second operand 7 states and 169 transitions. [2024-10-31 22:19:37,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 111 transitions, 810 flow [2024-10-31 22:19:37,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 111 transitions, 790 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-10-31 22:19:37,196 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 265 flow [2024-10-31 22:19:37,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=265, PETRI_PLACES=64, PETRI_TRANSITIONS=46} [2024-10-31 22:19:37,198 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 19 predicate places. [2024-10-31 22:19:37,199 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 265 flow [2024-10-31 22:19:37,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 22:19:37,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:37,199 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 22:19:37,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:19:37,200 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 22:19:37,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:37,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1646685581, now seen corresponding path program 1 times [2024-10-31 22:19:37,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:37,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385282879] [2024-10-31 22:19:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:37,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:38,528 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 22:19:38,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:38,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385282879] [2024-10-31 22:19:38,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385282879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:38,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:38,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:19:38,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43281101] [2024-10-31 22:19:38,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:38,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:19:38,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:38,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:19:38,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:19:38,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-10-31 22:19:38,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 265 flow. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 22:19:38,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:38,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-10-31 22:19:38,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:40,497 INFO L124 PetriNetUnfolderBase]: 3988/6450 cut-off events. [2024-10-31 22:19:40,497 INFO L125 PetriNetUnfolderBase]: For 21024/21026 co-relation queries the response was YES. [2024-10-31 22:19:40,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24576 conditions, 6450 events. 3988/6450 cut-off events. For 21024/21026 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 42742 event pairs, 910 based on Foata normal form. 180/6629 useless extension candidates. Maximal degree in co-relation 24549. Up to 3818 conditions per place. [2024-10-31 22:19:40,560 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 54 selfloop transitions, 25 changer transitions 69/156 dead transitions. [2024-10-31 22:19:40,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 156 transitions, 1235 flow [2024-10-31 22:19:40,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:19:40,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:19:40,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 227 transitions. [2024-10-31 22:19:40,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5820512820512821 [2024-10-31 22:19:40,563 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 265 flow. Second operand 10 states and 227 transitions. [2024-10-31 22:19:40,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 156 transitions, 1235 flow [2024-10-31 22:19:40,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 156 transitions, 1188 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-10-31 22:19:40,618 INFO L231 Difference]: Finished difference. Result has 73 places, 62 transitions, 532 flow [2024-10-31 22:19:40,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=532, PETRI_PLACES=73, PETRI_TRANSITIONS=62} [2024-10-31 22:19:40,620 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 28 predicate places. [2024-10-31 22:19:40,622 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 62 transitions, 532 flow [2024-10-31 22:19:40,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 22:19:40,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:40,623 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 22:19:40,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:19:40,623 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 22:19:40,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:40,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1715209529, now seen corresponding path program 1 times [2024-10-31 22:19:40,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:40,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186120226] [2024-10-31 22:19:40,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:40,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:41,346 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 22:19:41,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:41,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186120226] [2024-10-31 22:19:41,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186120226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:41,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:41,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:19:41,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365291390] [2024-10-31 22:19:41,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:41,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:19:41,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:41,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:19:41,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:19:41,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 39 [2024-10-31 22:19:41,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 62 transitions, 532 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 22:19:41,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:41,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 39 [2024-10-31 22:19:41,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:43,533 INFO L124 PetriNetUnfolderBase]: 4587/7766 cut-off events. [2024-10-31 22:19:43,534 INFO L125 PetriNetUnfolderBase]: For 45728/45813 co-relation queries the response was YES. [2024-10-31 22:19:43,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37361 conditions, 7766 events. 4587/7766 cut-off events. For 45728/45813 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 57210 event pairs, 1009 based on Foata normal form. 241/7962 useless extension candidates. Maximal degree in co-relation 37328. Up to 3012 conditions per place. [2024-10-31 22:19:43,608 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 62 selfloop transitions, 25 changer transitions 55/152 dead transitions. [2024-10-31 22:19:43,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 152 transitions, 1544 flow [2024-10-31 22:19:43,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:19:43,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:19:43,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 226 transitions. [2024-10-31 22:19:43,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5794871794871795 [2024-10-31 22:19:43,610 INFO L175 Difference]: Start difference. First operand has 73 places, 62 transitions, 532 flow. Second operand 10 states and 226 transitions. [2024-10-31 22:19:43,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 152 transitions, 1544 flow [2024-10-31 22:19:43,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 152 transitions, 1518 flow, removed 13 selfloop flow, removed 2 redundant places. [2024-10-31 22:19:43,670 INFO L231 Difference]: Finished difference. Result has 83 places, 70 transitions, 748 flow [2024-10-31 22:19:43,670 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=748, PETRI_PLACES=83, PETRI_TRANSITIONS=70} [2024-10-31 22:19:43,671 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 38 predicate places. [2024-10-31 22:19:43,671 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 70 transitions, 748 flow [2024-10-31 22:19:43,672 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 22:19:43,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:43,672 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 22:19:43,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:19:43,673 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 22:19:43,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:43,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1147061716, now seen corresponding path program 1 times [2024-10-31 22:19:43,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:43,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140793168] [2024-10-31 22:19:43,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:43,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:44,194 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 22:19:44,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:44,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140793168] [2024-10-31 22:19:44,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140793168] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:44,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:44,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:19:44,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116085490] [2024-10-31 22:19:44,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:44,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:19:44,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:44,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:19:44,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:19:44,205 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 39 [2024-10-31 22:19:44,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 70 transitions, 748 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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 22:19:44,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:44,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 39 [2024-10-31 22:19:44,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:46,328 INFO L124 PetriNetUnfolderBase]: 4054/6950 cut-off events. [2024-10-31 22:19:46,328 INFO L125 PetriNetUnfolderBase]: For 63816/64817 co-relation queries the response was YES. [2024-10-31 22:19:46,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37543 conditions, 6950 events. 4054/6950 cut-off events. For 63816/64817 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 50908 event pairs, 1655 based on Foata normal form. 720/7502 useless extension candidates. Maximal degree in co-relation 37501. Up to 4794 conditions per place. [2024-10-31 22:19:46,383 INFO L140 encePairwiseOnDemand]: 30/39 looper letters, 47 selfloop transitions, 17 changer transitions 55/148 dead transitions. [2024-10-31 22:19:46,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 148 transitions, 1812 flow [2024-10-31 22:19:46,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:19:46,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:19:46,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 225 transitions. [2024-10-31 22:19:46,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5769230769230769 [2024-10-31 22:19:46,385 INFO L175 Difference]: Start difference. First operand has 83 places, 70 transitions, 748 flow. Second operand 10 states and 225 transitions. [2024-10-31 22:19:46,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 148 transitions, 1812 flow [2024-10-31 22:19:46,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 148 transitions, 1790 flow, removed 11 selfloop flow, removed 2 redundant places. [2024-10-31 22:19:46,512 INFO L231 Difference]: Finished difference. Result has 92 places, 77 transitions, 913 flow [2024-10-31 22:19:46,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=913, PETRI_PLACES=92, PETRI_TRANSITIONS=77} [2024-10-31 22:19:46,513 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 47 predicate places. [2024-10-31 22:19:46,513 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 77 transitions, 913 flow [2024-10-31 22:19:46,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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 22:19:46,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:46,514 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 22:19:46,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:19:46,515 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 22:19:46,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:46,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1596872113, now seen corresponding path program 1 times [2024-10-31 22:19:46,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:46,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026041718] [2024-10-31 22:19:46,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:46,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:47,697 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 22:19:47,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:47,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026041718] [2024-10-31 22:19:47,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026041718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:47,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:47,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:19:47,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391500711] [2024-10-31 22:19:47,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:47,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:19:47,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:47,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:19:47,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:19:47,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 39 [2024-10-31 22:19:47,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 77 transitions, 913 flow. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 22:19:47,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:47,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 39 [2024-10-31 22:19:47,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:49,632 INFO L124 PetriNetUnfolderBase]: 5015/8359 cut-off events. [2024-10-31 22:19:49,633 INFO L125 PetriNetUnfolderBase]: For 99090/99094 co-relation queries the response was YES. [2024-10-31 22:19:49,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48940 conditions, 8359 events. 5015/8359 cut-off events. For 99090/99094 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 60271 event pairs, 1360 based on Foata normal form. 245/8603 useless extension candidates. Maximal degree in co-relation 48890. Up to 4809 conditions per place. [2024-10-31 22:19:49,714 INFO L140 encePairwiseOnDemand]: 25/39 looper letters, 80 selfloop transitions, 38 changer transitions 96/222 dead transitions. [2024-10-31 22:19:49,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 222 transitions, 3031 flow [2024-10-31 22:19:49,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:19:49,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:19:49,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 249 transitions. [2024-10-31 22:19:49,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5804195804195804 [2024-10-31 22:19:49,717 INFO L175 Difference]: Start difference. First operand has 92 places, 77 transitions, 913 flow. Second operand 11 states and 249 transitions. [2024-10-31 22:19:49,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 222 transitions, 3031 flow [2024-10-31 22:19:49,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 222 transitions, 2990 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-10-31 22:19:49,963 INFO L231 Difference]: Finished difference. Result has 100 places, 91 transitions, 1285 flow [2024-10-31 22:19:49,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1285, PETRI_PLACES=100, PETRI_TRANSITIONS=91} [2024-10-31 22:19:49,964 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 55 predicate places. [2024-10-31 22:19:49,964 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 91 transitions, 1285 flow [2024-10-31 22:19:49,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 22:19:49,964 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:49,965 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 22:19:49,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:19:49,965 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 22:19:49,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:49,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1409180978, now seen corresponding path program 1 times [2024-10-31 22:19:49,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:49,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687114609] [2024-10-31 22:19:49,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:49,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:50,695 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 22:19:50,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:50,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687114609] [2024-10-31 22:19:50,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687114609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:50,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:50,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:19:50,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996598690] [2024-10-31 22:19:50,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:50,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:19:50,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:50,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:19:50,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:19:50,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 39 [2024-10-31 22:19:50,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 91 transitions, 1285 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 22:19:50,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:50,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 39 [2024-10-31 22:19:50,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:52,890 INFO L124 PetriNetUnfolderBase]: 3833/6658 cut-off events. [2024-10-31 22:19:52,890 INFO L125 PetriNetUnfolderBase]: For 135381/136673 co-relation queries the response was YES. [2024-10-31 22:19:52,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48045 conditions, 6658 events. 3833/6658 cut-off events. For 135381/136673 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 48885 event pairs, 1258 based on Foata normal form. 886/7420 useless extension candidates. Maximal degree in co-relation 47989. Up to 3824 conditions per place. [2024-10-31 22:19:52,958 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 62 selfloop transitions, 31 changer transitions 61/189 dead transitions. [2024-10-31 22:19:52,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 189 transitions, 3097 flow [2024-10-31 22:19:52,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:19:52,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:19:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 215 transitions. [2024-10-31 22:19:52,961 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6125356125356125 [2024-10-31 22:19:52,961 INFO L175 Difference]: Start difference. First operand has 100 places, 91 transitions, 1285 flow. Second operand 9 states and 215 transitions. [2024-10-31 22:19:52,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 189 transitions, 3097 flow [2024-10-31 22:19:53,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 189 transitions, 2998 flow, removed 47 selfloop flow, removed 5 redundant places. [2024-10-31 22:19:53,280 INFO L231 Difference]: Finished difference. Result has 103 places, 104 transitions, 1652 flow [2024-10-31 22:19:53,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=1246, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1652, PETRI_PLACES=103, PETRI_TRANSITIONS=104} [2024-10-31 22:19:53,281 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 58 predicate places. [2024-10-31 22:19:53,282 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 104 transitions, 1652 flow [2024-10-31 22:19:53,282 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 22:19:53,282 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:53,282 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] [2024-10-31 22:19:53,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:19:53,283 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 22:19:53,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:53,283 INFO L85 PathProgramCache]: Analyzing trace with hash 721275828, now seen corresponding path program 1 times [2024-10-31 22:19:53,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:53,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747926013] [2024-10-31 22:19:53,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:53,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:53,520 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 22:19:53,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:53,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747926013] [2024-10-31 22:19:53,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747926013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:53,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:53,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:19:53,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34551443] [2024-10-31 22:19:53,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:53,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:19:53,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:53,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:19:53,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:19:53,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 39 [2024-10-31 22:19:53,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 104 transitions, 1652 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 22:19:53,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:53,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 39 [2024-10-31 22:19:53,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand