./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix021_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_e6e473b1-faf1-4e17-983c-094d58036e34/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/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_e6e473b1-faf1-4e17-983c-094d58036e34/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/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_e6e473b1-faf1-4e17-983c-094d58036e34/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 8943650a21e052edc6a6af145da55799620df509a78c8e503eca6167eaa2f8fc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:07:59,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:07:59,949 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:07:59,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:07:59,957 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:07:59,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:07:59,993 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:07:59,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:07:59,994 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:07:59,996 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:07:59,996 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:07:59,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:07:59,997 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:07:59,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:07:59,998 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:07:59,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:07:59,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:08:00,002 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:08:00,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:08:00,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:08:00,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:08:00,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:08:00,005 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:08:00,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:08:00,009 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:08:00,009 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:08:00,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:08:00,010 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:08:00,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:08:00,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:08:00,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:08:00,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:08:00,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:00,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:08:00,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:08:00,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:08:00,012 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:08:00,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:08:00,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:08:00,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:08:00,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:08:00,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:08:00,015 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_e6e473b1-faf1-4e17-983c-094d58036e34/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8943650a21e052edc6a6af145da55799620df509a78c8e503eca6167eaa2f8fc [2024-10-31 22:08:00,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:08:00,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:08:00,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:08:00,384 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:08:00,384 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:08:00,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i Unable to find full path for "g++" [2024-10-31 22:08:02,399 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:08:02,719 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:08:02,720 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i [2024-10-31 22:08:02,738 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/bin/uautomizer-verify-4GaUIPS5ZU/data/7c5fa29fd/6d262381c0aa4b8d95b007f04765acc4/FLAG02b6d9af2 [2024-10-31 22:08:02,965 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/bin/uautomizer-verify-4GaUIPS5ZU/data/7c5fa29fd/6d262381c0aa4b8d95b007f04765acc4 [2024-10-31 22:08:02,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:08:02,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:08:02,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:02,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:08:02,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:08:02,980 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:02" (1/1) ... [2024-10-31 22:08:02,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec0763e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:02, skipping insertion in model container [2024-10-31 22:08:02,982 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:08:02" (1/1) ... [2024-10-31 22:08:03,040 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:08:03,257 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_e6e473b1-faf1-4e17-983c-094d58036e34/sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-10-31 22:08:03,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:03,577 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:08:03,589 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_e6e473b1-faf1-4e17-983c-094d58036e34/sv-benchmarks/c/pthread-wmm/mix021_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-10-31 22:08:03,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:08:03,704 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:08:03,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03 WrapperNode [2024-10-31 22:08:03,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:08:03,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:03,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:08:03,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:08:03,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,770 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 127 [2024-10-31 22:08:03,770 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:08:03,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:08:03,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:08:03,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:08:03,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,795 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,819 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 22:08:03,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,834 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:08:03,839 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:08:03,839 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:08:03,840 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:08:03,840 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (1/1) ... [2024-10-31 22:08:03,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:08:03,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:08:03,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:08:03,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e473b1-faf1-4e17-983c-094d58036e34/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:08:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:08:03,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:08:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:08:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:08:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:08:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:08:03,917 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:08:03,917 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:08:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:08:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:08:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:08:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:08:03,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:08:03,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:08:03,922 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 22:08:04,095 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:08:04,098 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:08:04,550 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:08:04,550 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:08:04,876 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:08:04,876 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:08:04,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:04 BoogieIcfgContainer [2024-10-31 22:08:04,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:08:04,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:08:04,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:08:04,884 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:08:04,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:08:02" (1/3) ... [2024-10-31 22:08:04,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765abe17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:04, skipping insertion in model container [2024-10-31 22:08:04,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:08:03" (2/3) ... [2024-10-31 22:08:04,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765abe17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:08:04, skipping insertion in model container [2024-10-31 22:08:04,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:08:04" (3/3) ... [2024-10-31 22:08:04,887 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021_power.oepc_pso.oepc_rmo.oepc.i [2024-10-31 22:08:04,912 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:08:04,912 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:08:04,912 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:08:04,982 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:08:05,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-10-31 22:08:05,071 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-10-31 22:08:05,071 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:08:05,077 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 22:08:05,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-10-31 22:08:05,084 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-10-31 22:08:05,099 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:08:05,106 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;@7dbb2983, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:08:05,107 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-31 22:08:05,112 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:08:05,112 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-31 22:08:05,112 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:08:05,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:05,114 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-31 22:08:05,114 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 22:08:05,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:05,120 INFO L85 PathProgramCache]: Analyzing trace with hash 11930355, now seen corresponding path program 1 times [2024-10-31 22:08:05,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:05,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571651691] [2024-10-31 22:08:05,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:05,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:05,663 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 22:08:05,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:05,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571651691] [2024-10-31 22:08:05,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571651691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:05,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:05,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:08:05,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182274119] [2024-10-31 22:08:05,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:05,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:05,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:05,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:05,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:05,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 49 [2024-10-31 22:08:05,723 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 22:08:05,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:05,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 49 [2024-10-31 22:08:05,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:07,133 INFO L124 PetriNetUnfolderBase]: 2495/4136 cut-off events. [2024-10-31 22:08:07,133 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-31 22:08:07,151 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 22:08:07,173 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 37 selfloop transitions, 2 changer transitions 2/61 dead transitions. [2024-10-31 22:08:07,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 61 transitions, 225 flow [2024-10-31 22:08:07,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:07,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:07,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-10-31 22:08:07,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7891156462585034 [2024-10-31 22:08:07,186 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 116 transitions. [2024-10-31 22:08:07,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 61 transitions, 225 flow [2024-10-31 22:08:07,191 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 22:08:07,194 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-10-31 22:08:07,196 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 22:08:07,200 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-10-31 22:08:07,200 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-10-31 22:08:07,201 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 22:08:07,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:07,201 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:07,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:08:07,202 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 22:08:07,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:07,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1457321110, now seen corresponding path program 1 times [2024-10-31 22:08:07,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:07,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324489257] [2024-10-31 22:08:07,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:07,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:07,499 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 22:08:07,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:07,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324489257] [2024-10-31 22:08:07,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324489257] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:07,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:07,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:08:07,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455666975] [2024-10-31 22:08:07,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:07,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:08:07,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:07,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:08:07,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:08:07,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-31 22:08:07,519 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 22:08:07,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:07,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-31 22:08:07,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:10,162 INFO L124 PetriNetUnfolderBase]: 7779/12167 cut-off events. [2024-10-31 22:08:10,163 INFO L125 PetriNetUnfolderBase]: For 554/554 co-relation queries the response was YES. [2024-10-31 22:08:10,206 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 22:08:10,277 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 52 selfloop transitions, 6 changer transitions 1/74 dead transitions. [2024-10-31 22:08:10,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 74 transitions, 288 flow [2024-10-31 22:08:10,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:08:10,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:08:10,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-10-31 22:08:10,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6989795918367347 [2024-10-31 22:08:10,281 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 4 states and 137 transitions. [2024-10-31 22:08:10,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 74 transitions, 288 flow [2024-10-31 22:08:10,285 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 22:08:10,289 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 134 flow [2024-10-31 22:08:10,290 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 22:08:10,291 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-10-31 22:08:10,291 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 134 flow [2024-10-31 22:08:10,292 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 22:08:10,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:10,292 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 22:08:10,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:08:10,292 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 22:08:10,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:10,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1264106216, now seen corresponding path program 1 times [2024-10-31 22:08:10,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:10,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127532978] [2024-10-31 22:08:10,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:10,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:10,794 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 22:08:10,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:10,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127532978] [2024-10-31 22:08:10,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127532978] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:10,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:10,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:08:10,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930365240] [2024-10-31 22:08:10,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:10,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:08:10,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:10,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:08:10,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:08:10,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-31 22:08:10,826 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 22:08:10,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:10,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-31 22:08:10,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:12,702 INFO L124 PetriNetUnfolderBase]: 6075/9467 cut-off events. [2024-10-31 22:08:12,703 INFO L125 PetriNetUnfolderBase]: For 2276/2276 co-relation queries the response was YES. [2024-10-31 22:08:12,734 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 22:08:12,777 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 67 selfloop transitions, 10 changer transitions 1/93 dead transitions. [2024-10-31 22:08:12,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 93 transitions, 413 flow [2024-10-31 22:08:12,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:08:12,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:08:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2024-10-31 22:08:12,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-10-31 22:08:12,779 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 134 flow. Second operand 5 states and 175 transitions. [2024-10-31 22:08:12,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 93 transitions, 413 flow [2024-10-31 22:08:12,786 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 22:08:12,789 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 186 flow [2024-10-31 22:08:12,789 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 22:08:12,790 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2024-10-31 22:08:12,792 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 186 flow [2024-10-31 22:08:12,792 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 22:08:12,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:12,792 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 22:08:12,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:08:12,793 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 22:08:12,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:12,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1510528105, now seen corresponding path program 1 times [2024-10-31 22:08:12,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:12,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428888261] [2024-10-31 22:08:12,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:12,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:13,236 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 22:08:13,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:13,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428888261] [2024-10-31 22:08:13,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428888261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:13,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:13,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:08:13,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729156915] [2024-10-31 22:08:13,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:13,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:08:13,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:13,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:08:13,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:13,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-31 22:08:13,258 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 22:08:13,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:13,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-31 22:08:13,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:14,640 INFO L124 PetriNetUnfolderBase]: 4027/6115 cut-off events. [2024-10-31 22:08:14,641 INFO L125 PetriNetUnfolderBase]: For 4654/4654 co-relation queries the response was YES. [2024-10-31 22:08:14,667 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 22:08:14,700 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 80 selfloop transitions, 14 changer transitions 1/110 dead transitions. [2024-10-31 22:08:14,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 110 transitions, 544 flow [2024-10-31 22:08:14,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:14,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:08:14,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2024-10-31 22:08:14,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.717687074829932 [2024-10-31 22:08:14,707 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 186 flow. Second operand 6 states and 211 transitions. [2024-10-31 22:08:14,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 110 transitions, 544 flow [2024-10-31 22:08:14,748 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 22:08:14,750 INFO L231 Difference]: Finished difference. Result has 63 places, 54 transitions, 236 flow [2024-10-31 22:08:14,752 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 22:08:14,754 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2024-10-31 22:08:14,754 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 54 transitions, 236 flow [2024-10-31 22:08:14,754 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 22:08:14,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:14,755 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 22:08:14,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:08:14,755 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 22:08:14,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:14,756 INFO L85 PathProgramCache]: Analyzing trace with hash 157947390, now seen corresponding path program 1 times [2024-10-31 22:08:14,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:14,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245134373] [2024-10-31 22:08:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:14,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:15,343 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 22:08:15,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:15,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245134373] [2024-10-31 22:08:15,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245134373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:15,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:15,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:08:15,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619468873] [2024-10-31 22:08:15,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:15,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:08:15,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:15,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:08:15,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:08:15,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-10-31 22:08:15,368 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 22:08:15,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:15,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-10-31 22:08:15,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:16,604 INFO L124 PetriNetUnfolderBase]: 2863/4163 cut-off events. [2024-10-31 22:08:16,604 INFO L125 PetriNetUnfolderBase]: For 5022/5022 co-relation queries the response was YES. [2024-10-31 22:08:16,622 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 22:08:16,642 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 71 selfloop transitions, 18 changer transitions 1/105 dead transitions. [2024-10-31 22:08:16,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 105 transitions, 534 flow [2024-10-31 22:08:16,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:08:16,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:08:16,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 225 transitions. [2024-10-31 22:08:16,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6559766763848397 [2024-10-31 22:08:16,645 INFO L175 Difference]: Start difference. First operand has 63 places, 54 transitions, 236 flow. Second operand 7 states and 225 transitions. [2024-10-31 22:08:16,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 105 transitions, 534 flow [2024-10-31 22:08:16,682 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 22:08:16,684 INFO L231 Difference]: Finished difference. Result has 66 places, 54 transitions, 246 flow [2024-10-31 22:08:16,684 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 22:08:16,685 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 9 predicate places. [2024-10-31 22:08:16,685 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 54 transitions, 246 flow [2024-10-31 22:08:16,686 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 22:08:16,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:16,687 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 22:08:16,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:08:16,688 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 22:08:16,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:16,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1391379549, now seen corresponding path program 1 times [2024-10-31 22:08:16,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:16,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126041816] [2024-10-31 22:08:16,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:16,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:19,390 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 22:08:19,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:19,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126041816] [2024-10-31 22:08:19,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126041816] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:19,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:19,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-31 22:08:19,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431310081] [2024-10-31 22:08:19,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:19,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:08:19,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:19,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:08:19,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:08:19,436 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-10-31 22:08:19,437 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 22:08:19,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:19,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-10-31 22:08:19,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:22,676 INFO L124 PetriNetUnfolderBase]: 13381/20137 cut-off events. [2024-10-31 22:08:22,676 INFO L125 PetriNetUnfolderBase]: For 7917/8283 co-relation queries the response was YES. [2024-10-31 22:08:22,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46734 conditions, 20137 events. 13381/20137 cut-off events. For 7917/8283 co-relation queries the response was YES. Maximal size of possible extension queue 1028. Compared 136631 event pairs, 945 based on Foata normal form. 16/19523 useless extension candidates. Maximal degree in co-relation 46718. Up to 3448 conditions per place. [2024-10-31 22:08:22,852 INFO L140 encePairwiseOnDemand]: 34/49 looper letters, 117 selfloop transitions, 35 changer transitions 14/190 dead transitions. [2024-10-31 22:08:22,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 190 transitions, 904 flow [2024-10-31 22:08:22,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:08:22,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:08:22,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 343 transitions. [2024-10-31 22:08:22,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-10-31 22:08:22,855 INFO L175 Difference]: Start difference. First operand has 66 places, 54 transitions, 246 flow. Second operand 11 states and 343 transitions. [2024-10-31 22:08:22,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 190 transitions, 904 flow [2024-10-31 22:08:23,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 190 transitions, 778 flow, removed 32 selfloop flow, removed 10 redundant places. [2024-10-31 22:08:23,219 INFO L231 Difference]: Finished difference. Result has 75 places, 90 transitions, 421 flow [2024-10-31 22:08:23,220 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=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=421, PETRI_PLACES=75, PETRI_TRANSITIONS=90} [2024-10-31 22:08:23,222 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 18 predicate places. [2024-10-31 22:08:23,222 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 90 transitions, 421 flow [2024-10-31 22:08:23,223 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 22:08:23,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:23,224 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 22:08:23,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:08:23,224 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 22:08:23,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:23,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1661637211, now seen corresponding path program 2 times [2024-10-31 22:08:23,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:23,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007423539] [2024-10-31 22:08:23,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:23,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:23,692 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 22:08:23,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:23,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007423539] [2024-10-31 22:08:23,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007423539] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:23,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:23,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:08:23,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720664595] [2024-10-31 22:08:23,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:23,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:08:23,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:23,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:08:23,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:23,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-10-31 22:08:23,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 90 transitions, 421 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 22:08:23,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:23,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-10-31 22:08:23,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:28,385 INFO L124 PetriNetUnfolderBase]: 20147/30667 cut-off events. [2024-10-31 22:08:28,385 INFO L125 PetriNetUnfolderBase]: For 30312/30355 co-relation queries the response was YES. [2024-10-31 22:08:28,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85599 conditions, 30667 events. 20147/30667 cut-off events. For 30312/30355 co-relation queries the response was YES. Maximal size of possible extension queue 1654. Compared 227533 event pairs, 4473 based on Foata normal form. 26/29264 useless extension candidates. Maximal degree in co-relation 85579. Up to 11170 conditions per place. [2024-10-31 22:08:28,621 INFO L140 encePairwiseOnDemand]: 38/49 looper letters, 88 selfloop transitions, 33 changer transitions 24/169 dead transitions. [2024-10-31 22:08:28,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 169 transitions, 1068 flow [2024-10-31 22:08:28,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:08:28,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:08:28,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2024-10-31 22:08:28,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6156462585034014 [2024-10-31 22:08:28,622 INFO L175 Difference]: Start difference. First operand has 75 places, 90 transitions, 421 flow. Second operand 6 states and 181 transitions. [2024-10-31 22:08:28,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 169 transitions, 1068 flow [2024-10-31 22:08:29,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 169 transitions, 1062 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:29,017 INFO L231 Difference]: Finished difference. Result has 81 places, 109 transitions, 694 flow [2024-10-31 22:08:29,018 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=694, PETRI_PLACES=81, PETRI_TRANSITIONS=109} [2024-10-31 22:08:29,019 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 24 predicate places. [2024-10-31 22:08:29,019 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 109 transitions, 694 flow [2024-10-31 22:08:29,019 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 22:08:29,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:29,020 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 22:08:29,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:08:29,020 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 22:08:29,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:29,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1956208359, now seen corresponding path program 3 times [2024-10-31 22:08:29,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:29,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319580488] [2024-10-31 22:08:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:29,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:29,599 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 22:08:29,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:29,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319580488] [2024-10-31 22:08:29,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319580488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:29,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:29,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:08:29,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696023654] [2024-10-31 22:08:29,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:29,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:08:29,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:29,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:08:29,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:08:29,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-10-31 22:08:29,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 109 transitions, 694 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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 22:08:29,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:29,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-10-31 22:08:29,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand