./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix027_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_8453a518-49c0-4fc2-9fa0-22078c394de9/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/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_8453a518-49c0-4fc2-9fa0-22078c394de9/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/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_8453a518-49c0-4fc2-9fa0-22078c394de9/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 d8f535cb798ce58a79ec2e9a728d4e5d884025e215c7cfd9880fc53267dd5a20 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:03:54,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:54,736 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:03:54,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:54,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:54,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:54,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:54,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:54,779 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:03:54,780 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:03:54,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:03:54,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:03:54,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:54,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:54,784 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:54,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:54,785 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:03:54,785 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:03:54,785 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:54,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:03:54,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:54,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:03:54,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:03:54,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:03:54,790 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:54,790 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:03:54,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:03:54,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:54,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:54,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:54,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:03:54,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:03:54,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:54,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:54,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:03:54,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:03:54,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:03:54,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:03:54,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:03:54,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:03:54,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:03:54,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:03:54,795 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_8453a518-49c0-4fc2-9fa0-22078c394de9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8f535cb798ce58a79ec2e9a728d4e5d884025e215c7cfd9880fc53267dd5a20 [2024-10-31 22:03:55,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:55,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:55,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:55,143 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:55,144 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:55,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i Unable to find full path for "g++" [2024-10-31 22:03:57,268 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:57,579 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:57,580 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i [2024-10-31 22:03:57,593 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/bin/uautomizer-verify-4GaUIPS5ZU/data/46393a5d8/308f48df8efe4c4b8602139e0a924931/FLAGb25efb91a [2024-10-31 22:03:57,841 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/bin/uautomizer-verify-4GaUIPS5ZU/data/46393a5d8/308f48df8efe4c4b8602139e0a924931 [2024-10-31 22:03:57,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:57,845 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:57,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:57,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:57,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:57,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:57" (1/1) ... [2024-10-31 22:03:57,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32c00836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:57, skipping insertion in model container [2024-10-31 22:03:57,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:57" (1/1) ... [2024-10-31 22:03:57,912 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:58,126 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_8453a518-49c0-4fc2-9fa0-22078c394de9/sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-10-31 22:03:58,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:58,464 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:58,481 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_8453a518-49c0-4fc2-9fa0-22078c394de9/sv-benchmarks/c/pthread-wmm/mix027_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-10-31 22:03:58,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:58,638 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:58,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58 WrapperNode [2024-10-31 22:03:58,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:58,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:58,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:58,641 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:58,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,721 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 127 [2024-10-31 22:03:58,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:58,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:58,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:58,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:58,752 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,756 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,786 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 22:03:58,786 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:58,825 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:58,825 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:58,825 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:58,826 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (1/1) ... [2024-10-31 22:03:58,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:58,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:58,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:58,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8453a518-49c0-4fc2-9fa0-22078c394de9/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:58,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:03:58,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:03:58,942 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:03:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:03:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:03:58,943 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:03:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:03:58,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:03:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:03:58,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:03:58,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:03:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:03:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:58,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:58,948 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 22:03:59,119 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:59,122 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:59,615 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:03:59,615 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:59,885 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:59,885 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:03:59,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:59 BoogieIcfgContainer [2024-10-31 22:03:59,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:59,890 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:03:59,890 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:03:59,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:03:59,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:03:57" (1/3) ... [2024-10-31 22:03:59,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19daccdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:59, skipping insertion in model container [2024-10-31 22:03:59,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:58" (2/3) ... [2024-10-31 22:03:59,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19daccdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:59, skipping insertion in model container [2024-10-31 22:03:59,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:59" (3/3) ... [2024-10-31 22:03:59,899 INFO L112 eAbstractionObserver]: Analyzing ICFG mix027_power.oepc_pso.oepc_rmo.oepc.i [2024-10-31 22:03:59,918 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:03:59,919 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:03:59,919 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:03:59,990 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:04:00,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-10-31 22:04:00,068 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-10-31 22:04:00,069 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:00,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 45 events. 1/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-10-31 22:04:00,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-10-31 22:04:00,082 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-10-31 22:04:00,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:00,103 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;@3e4b0bf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:00,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-31 22:04:00,110 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:04:00,111 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-31 22:04:00,111 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:04:00,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:00,112 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:04:00,113 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:00,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:00,120 INFO L85 PathProgramCache]: Analyzing trace with hash 11930355, now seen corresponding path program 1 times [2024-10-31 22:04:00,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:00,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444822781] [2024-10-31 22:04:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:00,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:00,700 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 22:04:00,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444822781] [2024-10-31 22:04:00,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444822781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:00,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:00,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:04:00,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197682697] [2024-10-31 22:04:00,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:00,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:00,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:00,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:00,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 49 [2024-10-31 22:04:00,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 22:04:00,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:00,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 49 [2024-10-31 22:04:00,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:02,014 INFO L124 PetriNetUnfolderBase]: 2495/4136 cut-off events. [2024-10-31 22:04:02,014 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-31 22:04:02,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7712 conditions, 4136 events. 2495/4136 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 28519 event pairs, 443 based on Foata normal form. 135/4200 useless extension candidates. Maximal degree in co-relation 7700. Up to 2779 conditions per place. [2024-10-31 22:04:02,054 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 37 selfloop transitions, 2 changer transitions 2/61 dead transitions. [2024-10-31 22:04:02,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 61 transitions, 225 flow [2024-10-31 22:04:02,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:02,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:04:02,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-10-31 22:04:02,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7891156462585034 [2024-10-31 22:04:02,070 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 116 transitions. [2024-10-31 22:04:02,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 61 transitions, 225 flow [2024-10-31 22:04:02,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 61 transitions, 218 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:04:02,081 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-10-31 22:04:02,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-10-31 22:04:02,091 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-10-31 22:04:02,091 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-10-31 22:04:02,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 22:04:02,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:02,092 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:02,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:04:02,092 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:02,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:02,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1457321110, now seen corresponding path program 1 times [2024-10-31 22:04:02,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:02,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868102175] [2024-10-31 22:04:02,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:02,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:02,423 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 22:04:02,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:02,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868102175] [2024-10-31 22:04:02,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868102175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:02,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:02,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:02,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731941958] [2024-10-31 22:04:02,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:02,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:02,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:02,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:02,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:02,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-31 22:04:02,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 22:04:02,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:02,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-31 22:04:02,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:04,806 INFO L124 PetriNetUnfolderBase]: 7779/12167 cut-off events. [2024-10-31 22:04:04,806 INFO L125 PetriNetUnfolderBase]: For 554/554 co-relation queries the response was YES. [2024-10-31 22:04:04,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23583 conditions, 12167 events. 7779/12167 cut-off events. For 554/554 co-relation queries the response was YES. Maximal size of possible extension queue 702. Compared 86792 event pairs, 1033 based on Foata normal form. 400/12068 useless extension candidates. Maximal degree in co-relation 23573. Up to 5841 conditions per place. [2024-10-31 22:04:04,904 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 52 selfloop transitions, 6 changer transitions 1/74 dead transitions. [2024-10-31 22:04:04,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 74 transitions, 288 flow [2024-10-31 22:04:04,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:04,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:04:04,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-10-31 22:04:04,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6989795918367347 [2024-10-31 22:04:04,907 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 4 states and 137 transitions. [2024-10-31 22:04:04,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 74 transitions, 288 flow [2024-10-31 22:04:04,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 74 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:04,911 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 134 flow [2024-10-31 22:04:04,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=134, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2024-10-31 22:04:04,912 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-10-31 22:04:04,912 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 134 flow [2024-10-31 22:04:04,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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 22:04:04,913 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:04,913 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 22:04:04,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:04:04,914 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:04,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:04,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1264106216, now seen corresponding path program 1 times [2024-10-31 22:04:04,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:04,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092538630] [2024-10-31 22:04:04,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:04,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:05,246 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 22:04:05,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:05,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092538630] [2024-10-31 22:04:05,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092538630] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:05,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:05,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:05,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180002941] [2024-10-31 22:04:05,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:05,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:04:05,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:05,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:04:05,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:05,270 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-31 22:04:05,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 134 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 22:04:05,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:05,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-31 22:04:05,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:07,072 INFO L124 PetriNetUnfolderBase]: 6075/9467 cut-off events. [2024-10-31 22:04:07,073 INFO L125 PetriNetUnfolderBase]: For 2276/2276 co-relation queries the response was YES. [2024-10-31 22:04:07,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21251 conditions, 9467 events. 6075/9467 cut-off events. For 2276/2276 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 63571 event pairs, 451 based on Foata normal form. 364/9470 useless extension candidates. Maximal degree in co-relation 21239. Up to 3681 conditions per place. [2024-10-31 22:04:07,150 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 67 selfloop transitions, 10 changer transitions 1/93 dead transitions. [2024-10-31 22:04:07,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 93 transitions, 413 flow [2024-10-31 22:04:07,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:04:07,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:04:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2024-10-31 22:04:07,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-10-31 22:04:07,153 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 134 flow. Second operand 5 states and 175 transitions. [2024-10-31 22:04:07,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 93 transitions, 413 flow [2024-10-31 22:04:07,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 93 transitions, 402 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:07,165 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 186 flow [2024-10-31 22:04:07,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2024-10-31 22:04:07,166 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2024-10-31 22:04:07,167 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 186 flow [2024-10-31 22:04:07,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 22:04:07,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:07,168 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 22:04:07,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:04:07,168 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:07,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:07,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1510528105, now seen corresponding path program 1 times [2024-10-31 22:04:07,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:07,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774825164] [2024-10-31 22:04:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:07,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:07,627 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 22:04:07,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:07,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774825164] [2024-10-31 22:04:07,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774825164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:07,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:07,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:04:07,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327415248] [2024-10-31 22:04:07,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:07,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:07,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:07,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:07,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:07,645 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-31 22:04:07,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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 22:04:07,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:07,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-31 22:04:07,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:09,087 INFO L124 PetriNetUnfolderBase]: 4027/6115 cut-off events. [2024-10-31 22:04:09,088 INFO L125 PetriNetUnfolderBase]: For 4654/4654 co-relation queries the response was YES. [2024-10-31 22:04:09,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15565 conditions, 6115 events. 4027/6115 cut-off events. For 4654/4654 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 35758 event pairs, 289 based on Foata normal form. 244/6151 useless extension candidates. Maximal degree in co-relation 15551. Up to 1788 conditions per place. [2024-10-31 22:04:09,147 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 80 selfloop transitions, 14 changer transitions 1/110 dead transitions. [2024-10-31 22:04:09,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 110 transitions, 544 flow [2024-10-31 22:04:09,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:09,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2024-10-31 22:04:09,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.717687074829932 [2024-10-31 22:04:09,151 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 186 flow. Second operand 6 states and 211 transitions. [2024-10-31 22:04:09,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 110 transitions, 544 flow [2024-10-31 22:04:09,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 110 transitions, 514 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-31 22:04:09,199 INFO L231 Difference]: Finished difference. Result has 63 places, 54 transitions, 236 flow [2024-10-31 22:04:09,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=236, PETRI_PLACES=63, PETRI_TRANSITIONS=54} [2024-10-31 22:04:09,200 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2024-10-31 22:04:09,201 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 54 transitions, 236 flow [2024-10-31 22:04:09,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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 22:04:09,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:09,201 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, 1, 1] [2024-10-31 22:04:09,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:04:09,202 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:09,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:09,202 INFO L85 PathProgramCache]: Analyzing trace with hash 157947390, now seen corresponding path program 1 times [2024-10-31 22:04:09,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:09,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353662967] [2024-10-31 22:04:09,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:09,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:09,667 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 22:04:09,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:09,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353662967] [2024-10-31 22:04:09,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353662967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:09,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:09,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:04:09,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148019205] [2024-10-31 22:04:09,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:09,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:04:09,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:09,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:04:09,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:04:09,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-31 22:04:09,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 54 transitions, 236 flow. Second operand has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 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 22:04:09,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:09,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-31 22:04:09,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:10,578 INFO L124 PetriNetUnfolderBase]: 2863/4163 cut-off events. [2024-10-31 22:04:10,578 INFO L125 PetriNetUnfolderBase]: For 5022/5022 co-relation queries the response was YES. [2024-10-31 22:04:10,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11590 conditions, 4163 events. 2863/4163 cut-off events. For 5022/5022 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 21805 event pairs, 231 based on Foata normal form. 96/4131 useless extension candidates. Maximal degree in co-relation 11575. Up to 1316 conditions per place. [2024-10-31 22:04:10,603 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 71 selfloop transitions, 18 changer transitions 1/105 dead transitions. [2024-10-31 22:04:10,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 105 transitions, 534 flow [2024-10-31 22:04:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:04:10,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:04:10,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 225 transitions. [2024-10-31 22:04:10,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6559766763848397 [2024-10-31 22:04:10,605 INFO L175 Difference]: Start difference. First operand has 63 places, 54 transitions, 236 flow. Second operand 7 states and 225 transitions. [2024-10-31 22:04:10,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 105 transitions, 534 flow [2024-10-31 22:04:10,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 105 transitions, 488 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-31 22:04:10,641 INFO L231 Difference]: Finished difference. Result has 66 places, 54 transitions, 246 flow [2024-10-31 22:04:10,642 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=246, PETRI_PLACES=66, PETRI_TRANSITIONS=54} [2024-10-31 22:04:10,643 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 9 predicate places. [2024-10-31 22:04:10,644 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 54 transitions, 246 flow [2024-10-31 22:04:10,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 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 22:04:10,644 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:10,645 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:10,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:04:10,645 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:10,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:10,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1391379549, now seen corresponding path program 1 times [2024-10-31 22:04:10,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:10,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420846907] [2024-10-31 22:04:10,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:10,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:13,211 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 22:04:13,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:13,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420846907] [2024-10-31 22:04:13,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420846907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:13,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:13,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:04:13,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989461931] [2024-10-31 22:04:13,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:13,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:04:13,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:13,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:04:13,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:04:13,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-10-31 22:04:13,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 246 flow. Second operand has 10 states, 10 states have (on average 18.6) internal successors, (186), 10 states have internal predecessors, (186), 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 22:04:13,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:13,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-10-31 22:04:13,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:16,614 INFO L124 PetriNetUnfolderBase]: 12440/18673 cut-off events. [2024-10-31 22:04:16,614 INFO L125 PetriNetUnfolderBase]: For 7396/7752 co-relation queries the response was YES. [2024-10-31 22:04:16,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43282 conditions, 18673 events. 12440/18673 cut-off events. For 7396/7752 co-relation queries the response was YES. Maximal size of possible extension queue 941. Compared 126586 event pairs, 942 based on Foata normal form. 16/18069 useless extension candidates. Maximal degree in co-relation 43266. Up to 2763 conditions per place. [2024-10-31 22:04:16,752 INFO L140 encePairwiseOnDemand]: 34/49 looper letters, 117 selfloop transitions, 34 changer transitions 14/189 dead transitions. [2024-10-31 22:04:16,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 189 transitions, 900 flow [2024-10-31 22:04:16,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:04:16,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:04:16,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 342 transitions. [2024-10-31 22:04:16,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.634508348794063 [2024-10-31 22:04:16,755 INFO L175 Difference]: Start difference. First operand has 66 places, 54 transitions, 246 flow. Second operand 11 states and 342 transitions. [2024-10-31 22:04:16,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 189 transitions, 900 flow [2024-10-31 22:04:17,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 189 transitions, 774 flow, removed 32 selfloop flow, removed 10 redundant places. [2024-10-31 22:04:17,015 INFO L231 Difference]: Finished difference. Result has 76 places, 87 transitions, 418 flow [2024-10-31 22:04:17,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=418, PETRI_PLACES=76, PETRI_TRANSITIONS=87} [2024-10-31 22:04:17,016 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 19 predicate places. [2024-10-31 22:04:17,016 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 87 transitions, 418 flow [2024-10-31 22:04:17,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.6) internal successors, (186), 10 states have internal predecessors, (186), 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 22:04:17,018 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:17,019 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:17,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:04:17,019 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:17,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:17,020 INFO L85 PathProgramCache]: Analyzing trace with hash 466706779, now seen corresponding path program 2 times [2024-10-31 22:04:17,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:17,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298524462] [2024-10-31 22:04:17,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:17,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:17,507 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 22:04:17,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:17,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298524462] [2024-10-31 22:04:17,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298524462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:17,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:17,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:04:17,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3970357] [2024-10-31 22:04:17,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:17,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:17,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:17,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:17,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:17,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 49 [2024-10-31 22:04:17,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 87 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 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 22:04:17,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:17,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 49 [2024-10-31 22:04:17,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:21,543 INFO L124 PetriNetUnfolderBase]: 16734/26400 cut-off events. [2024-10-31 22:04:21,543 INFO L125 PetriNetUnfolderBase]: For 29150/31107 co-relation queries the response was YES. [2024-10-31 22:04:21,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72128 conditions, 26400 events. 16734/26400 cut-off events. For 29150/31107 co-relation queries the response was YES. Maximal size of possible extension queue 1558. Compared 208121 event pairs, 3461 based on Foata normal form. 593/24878 useless extension candidates. Maximal degree in co-relation 72107. Up to 9587 conditions per place. [2024-10-31 22:04:21,712 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 52 selfloop transitions, 1 changer transitions 56/150 dead transitions. [2024-10-31 22:04:21,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 150 transitions, 912 flow [2024-10-31 22:04:21,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:21,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:21,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 184 transitions. [2024-10-31 22:04:21,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6258503401360545 [2024-10-31 22:04:21,715 INFO L175 Difference]: Start difference. First operand has 76 places, 87 transitions, 418 flow. Second operand 6 states and 184 transitions. [2024-10-31 22:04:21,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 150 transitions, 912 flow [2024-10-31 22:04:21,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 150 transitions, 906 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-31 22:04:21,843 INFO L231 Difference]: Finished difference. Result has 81 places, 77 transitions, 369 flow [2024-10-31 22:04:21,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=369, PETRI_PLACES=81, PETRI_TRANSITIONS=77} [2024-10-31 22:04:21,844 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 24 predicate places. [2024-10-31 22:04:21,844 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 77 transitions, 369 flow [2024-10-31 22:04:21,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 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 22:04:21,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:21,844 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:21,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:04:21,845 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:21,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:21,845 INFO L85 PathProgramCache]: Analyzing trace with hash -428656969, now seen corresponding path program 3 times [2024-10-31 22:04:21,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:21,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150046185] [2024-10-31 22:04:21,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:21,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:22,330 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 22:04:22,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:22,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150046185] [2024-10-31 22:04:22,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150046185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:22,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:22,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:04:22,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70627392] [2024-10-31 22:04:22,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:22,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:04:22,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:22,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:04:22,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:04:22,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-10-31 22:04:22,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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 22:04:22,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:04:22,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-10-31 22:04:22,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:04:26,585 INFO L124 PetriNetUnfolderBase]: 14546/22953 cut-off events. [2024-10-31 22:04:26,586 INFO L125 PetriNetUnfolderBase]: For 21833/22037 co-relation queries the response was YES. [2024-10-31 22:04:26,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62778 conditions, 22953 events. 14546/22953 cut-off events. For 21833/22037 co-relation queries the response was YES. Maximal size of possible extension queue 1316. Compared 177521 event pairs, 3637 based on Foata normal form. 49/21732 useless extension candidates. Maximal degree in co-relation 62754. Up to 8669 conditions per place. [2024-10-31 22:04:26,693 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 49 selfloop transitions, 10 changer transitions 56/139 dead transitions. [2024-10-31 22:04:26,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 139 transitions, 873 flow [2024-10-31 22:04:26,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:04:26,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:04:26,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 182 transitions. [2024-10-31 22:04:26,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-10-31 22:04:26,695 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 369 flow. Second operand 6 states and 182 transitions. [2024-10-31 22:04:26,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 139 transitions, 873 flow [2024-10-31 22:04:26,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 139 transitions, 856 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-10-31 22:04:26,817 INFO L231 Difference]: Finished difference. Result has 83 places, 66 transitions, 331 flow [2024-10-31 22:04:26,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=331, PETRI_PLACES=83, PETRI_TRANSITIONS=66} [2024-10-31 22:04:26,823 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2024-10-31 22:04:26,823 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 66 transitions, 331 flow [2024-10-31 22:04:26,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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 22:04:26,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:04:26,824 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:26,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:04:26,824 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:04:26,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:26,824 INFO L85 PathProgramCache]: Analyzing trace with hash 2131511709, now seen corresponding path program 4 times [2024-10-31 22:04:26,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:26,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729956960] [2024-10-31 22:04:26,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:26,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat