./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 2272010dc8e07b1cac46beb8b69d58bd905467d4d1bd6fb11b2eb1922da454c5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 16:09:29,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 16:09:29,438 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 16:09:29,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 16:09:29,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 16:09:29,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 16:09:29,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 16:09:29,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 16:09:29,480 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 16:09:29,481 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 16:09:29,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 16:09:29,482 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 16:09:29,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 16:09:29,485 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 16:09:29,485 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 16:09:29,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 16:09:29,486 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 16:09:29,489 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 16:09:29,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 16:09:29,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 16:09:29,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 16:09:29,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 16:09:29,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 16:09:29,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 16:09:29,492 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 16:09:29,492 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 16:09:29,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 16:09:29,492 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 16:09:29,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 16:09:29,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 16:09:29,494 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 16:09:29,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 16:09:29,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 16:09:29,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 16:09:29,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 16:09:29,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 16:09:29,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 16:09:29,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 16:09:29,496 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 16:09:29,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 16:09:29,497 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 16:09:29,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 16:09:29,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 16:09:29,497 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2272010dc8e07b1cac46beb8b69d58bd905467d4d1bd6fb11b2eb1922da454c5 [2024-01-27 16:09:29,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 16:09:29,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 16:09:29,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 16:09:29,786 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 16:09:29,786 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 16:09:29,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i [2024-01-27 16:09:30,925 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 16:09:31,234 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 16:09:31,235 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i [2024-01-27 16:09:31,273 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd49cfb4/5a1d8b74122943acba596533bc165164/FLAGaf1b13328 [2024-01-27 16:09:31,291 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5dd49cfb4/5a1d8b74122943acba596533bc165164 [2024-01-27 16:09:31,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 16:09:31,296 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-01-27 16:09:31,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 16:09:31,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 16:09:31,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 16:09:31,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d07c1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31, skipping insertion in model container [2024-01-27 16:09:31,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,360 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 16:09:31,506 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-01-27 16:09:31,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 16:09:31,696 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 16:09:31,705 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix005_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-01-27 16:09:31,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 16:09:31,792 INFO L206 MainTranslator]: Completed translation [2024-01-27 16:09:31,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31 WrapperNode [2024-01-27 16:09:31,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 16:09:31,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 16:09:31,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 16:09:31,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 16:09:31,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,853 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2024-01-27 16:09:31,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 16:09:31,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 16:09:31,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 16:09:31,855 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 16:09:31,863 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,866 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,893 INFO L175 MemorySlicer]: Split 6 memory accesses to 5 slices as follows [2, 1, 1, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-01-27 16:09:31,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,907 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 16:09:31,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 16:09:31,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 16:09:31,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 16:09:31,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (1/1) ... [2024-01-27 16:09:31,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 16:09:31,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 16:09:31,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 16:09:31,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 16:09:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 16:09:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 16:09:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 16:09:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 16:09:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 16:09:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 16:09:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 16:09:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 16:09:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 16:09:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-01-27 16:09:31,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-01-27 16:09:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-01-27 16:09:31,986 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-01-27 16:09:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-01-27 16:09:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-01-27 16:09:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-01-27 16:09:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-01-27 16:09:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 16:09:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 16:09:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 16:09:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 16:09:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 16:09:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 16:09:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 16:09:31,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 16:09:31,989 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 16:09:32,089 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 16:09:32,091 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 16:09:32,306 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 16:09:32,307 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 16:09:32,483 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 16:09:32,483 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 16:09:32,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:09:32 BoogieIcfgContainer [2024-01-27 16:09:32,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 16:09:32,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 16:09:32,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 16:09:32,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 16:09:32,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 04:09:31" (1/3) ... [2024-01-27 16:09:32,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d8f93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 04:09:32, skipping insertion in model container [2024-01-27 16:09:32,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 04:09:31" (2/3) ... [2024-01-27 16:09:32,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d8f93d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 04:09:32, skipping insertion in model container [2024-01-27 16:09:32,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 04:09:32" (3/3) ... [2024-01-27 16:09:32,490 INFO L112 eAbstractionObserver]: Analyzing ICFG mix005_power.oepc_pso.oepc_rmo.oepc.i [2024-01-27 16:09:32,497 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-27 16:09:32,504 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 16:09:32,504 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-01-27 16:09:32,505 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 16:09:32,548 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-27 16:09:32,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2024-01-27 16:09:32,603 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2024-01-27 16:09:32,604 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 16:09:32,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 1/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 100 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-01-27 16:09:32,608 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2024-01-27 16:09:32,612 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2024-01-27 16:09:32,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 16:09:32,630 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@158bf58c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 16:09:32,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-01-27 16:09:32,633 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 16:09:32,633 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-01-27 16:09:32,634 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 16:09:32,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:09:32,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 16:09:32,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-01-27 16:09:32,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:09:32,638 INFO L85 PathProgramCache]: Analyzing trace with hash 12455637, now seen corresponding path program 1 times [2024-01-27 16:09:32,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:09:32,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017595850] [2024-01-27 16:09:32,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:09:32,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:09:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:09:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:09:33,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:09:33,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017595850] [2024-01-27 16:09:33,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017595850] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:09:33,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:09:33,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 16:09:33,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729029856] [2024-01-27 16:09:33,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:09:33,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 16:09:33,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:09:33,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 16:09:33,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 16:09:33,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-01-27 16:09:33,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-01-27 16:09:33,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:09:33,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-01-27 16:09:33,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:09:33,779 INFO L124 PetriNetUnfolderBase]: 2495/3960 cut-off events. [2024-01-27 16:09:33,779 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-27 16:09:33,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7536 conditions, 3960 events. 2495/3960 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 25066 event pairs, 1647 based on Foata normal form. 135/4028 useless extension candidates. Maximal degree in co-relation 7524. Up to 2779 conditions per place. [2024-01-27 16:09:33,804 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 37 selfloop transitions, 2 changer transitions 2/62 dead transitions. [2024-01-27 16:09:33,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 62 transitions, 227 flow [2024-01-27 16:09:33,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 16:09:33,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 16:09:33,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-01-27 16:09:33,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7933333333333333 [2024-01-27 16:09:33,815 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 119 transitions. [2024-01-27 16:09:33,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 62 transitions, 227 flow [2024-01-27 16:09:33,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 62 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 16:09:33,824 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2024-01-27 16:09:33,826 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-01-27 16:09:33,830 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2024-01-27 16:09:33,830 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2024-01-27 16:09:33,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-01-27 16:09:33,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:09:33,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:09:33,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 16:09:33,831 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-01-27 16:09:33,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:09:33,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1855425157, now seen corresponding path program 1 times [2024-01-27 16:09:33,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:09:33,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193477968] [2024-01-27 16:09:33,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:09:33,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:09:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:09:34,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:09:34,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:09:34,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193477968] [2024-01-27 16:09:34,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193477968] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:09:34,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:09:34,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 16:09:34,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431045664] [2024-01-27 16:09:34,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:09:34,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 16:09:34,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:09:34,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 16:09:34,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-27 16:09:34,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-01-27 16:09:34,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2024-01-27 16:09:34,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:09:34,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-01-27 16:09:34,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:09:38,039 INFO L124 PetriNetUnfolderBase]: 33511/47636 cut-off events. [2024-01-27 16:09:38,039 INFO L125 PetriNetUnfolderBase]: For 1433/1433 co-relation queries the response was YES. [2024-01-27 16:09:38,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94490 conditions, 47636 events. 33511/47636 cut-off events. For 1433/1433 co-relation queries the response was YES. Maximal size of possible extension queue 2003. Compared 338139 event pairs, 9175 based on Foata normal form. 0/46415 useless extension candidates. Maximal degree in co-relation 94480. Up to 20869 conditions per place. [2024-01-27 16:09:38,267 INFO L140 encePairwiseOnDemand]: 38/50 looper letters, 47 selfloop transitions, 8 changer transitions 101/168 dead transitions. [2024-01-27 16:09:38,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 168 transitions, 676 flow [2024-01-27 16:09:38,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-27 16:09:38,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-01-27 16:09:38,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 302 transitions. [2024-01-27 16:09:38,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6711111111111111 [2024-01-27 16:09:38,275 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 9 states and 302 transitions. [2024-01-27 16:09:38,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 168 transitions, 676 flow [2024-01-27 16:09:38,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 168 transitions, 660 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 16:09:38,279 INFO L231 Difference]: Finished difference. Result has 68 places, 49 transitions, 204 flow [2024-01-27 16:09:38,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=204, PETRI_PLACES=68, PETRI_TRANSITIONS=49} [2024-01-27 16:09:38,281 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 10 predicate places. [2024-01-27 16:09:38,283 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 49 transitions, 204 flow [2024-01-27 16:09:38,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2024-01-27 16:09:38,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:09:38,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:09:38,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 16:09:38,284 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-01-27 16:09:38,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:09:38,285 INFO L85 PathProgramCache]: Analyzing trace with hash 2098278950, now seen corresponding path program 1 times [2024-01-27 16:09:38,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:09:38,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884186338] [2024-01-27 16:09:38,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:09:38,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:09:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:09:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:09:38,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:09:38,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884186338] [2024-01-27 16:09:38,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884186338] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:09:38,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:09:38,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 16:09:38,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018310395] [2024-01-27 16:09:38,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:09:38,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 16:09:38,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:09:38,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 16:09:38,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-27 16:09:38,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-01-27 16:09:38,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 49 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 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) [2024-01-27 16:09:38,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:09:38,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-01-27 16:09:38,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:09:41,753 INFO L124 PetriNetUnfolderBase]: 24922/36433 cut-off events. [2024-01-27 16:09:41,753 INFO L125 PetriNetUnfolderBase]: For 50867/51015 co-relation queries the response was YES. [2024-01-27 16:09:41,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110420 conditions, 36433 events. 24922/36433 cut-off events. For 50867/51015 co-relation queries the response was YES. Maximal size of possible extension queue 1485. Compared 257156 event pairs, 5105 based on Foata normal form. 960/37321 useless extension candidates. Maximal degree in co-relation 110402. Up to 17101 conditions per place. [2024-01-27 16:09:41,967 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 64 selfloop transitions, 9 changer transitions 96/181 dead transitions. [2024-01-27 16:09:41,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 181 transitions, 1140 flow [2024-01-27 16:09:41,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-01-27 16:09:41,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-01-27 16:09:41,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 316 transitions. [2024-01-27 16:09:41,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.632 [2024-01-27 16:09:41,969 INFO L175 Difference]: Start difference. First operand has 68 places, 49 transitions, 204 flow. Second operand 10 states and 316 transitions. [2024-01-27 16:09:41,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 181 transitions, 1140 flow [2024-01-27 16:09:42,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 181 transitions, 990 flow, removed 38 selfloop flow, removed 4 redundant places. [2024-01-27 16:09:42,270 INFO L231 Difference]: Finished difference. Result has 75 places, 54 transitions, 270 flow [2024-01-27 16:09:42,270 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=270, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2024-01-27 16:09:42,271 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 17 predicate places. [2024-01-27 16:09:42,271 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 270 flow [2024-01-27 16:09:42,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 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) [2024-01-27 16:09:42,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:09:42,272 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:09:42,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 16:09:42,272 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-01-27 16:09:42,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:09:42,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1876518605, now seen corresponding path program 1 times [2024-01-27 16:09:42,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:09:42,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44089032] [2024-01-27 16:09:42,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:09:42,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:09:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:09:42,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:09:42,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:09:42,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44089032] [2024-01-27 16:09:42,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44089032] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:09:42,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:09:42,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 16:09:42,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883983534] [2024-01-27 16:09:42,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:09:42,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 16:09:42,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:09:42,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 16:09:42,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-27 16:09:42,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 50 [2024-01-27 16:09:42,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 270 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-01-27 16:09:42,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:09:42,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 50 [2024-01-27 16:09:42,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:09:44,884 INFO L124 PetriNetUnfolderBase]: 16731/25986 cut-off events. [2024-01-27 16:09:44,884 INFO L125 PetriNetUnfolderBase]: For 37949/40091 co-relation queries the response was YES. [2024-01-27 16:09:44,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73070 conditions, 25986 events. 16731/25986 cut-off events. For 37949/40091 co-relation queries the response was YES. Maximal size of possible extension queue 1167. Compared 200693 event pairs, 4854 based on Foata normal form. 1180/26423 useless extension candidates. Maximal degree in co-relation 73045. Up to 14627 conditions per place. [2024-01-27 16:09:45,052 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 35 selfloop transitions, 4 changer transitions 43/107 dead transitions. [2024-01-27 16:09:45,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 107 transitions, 608 flow [2024-01-27 16:09:45,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-27 16:09:45,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-27 16:09:45,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 223 transitions. [2024-01-27 16:09:45,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6371428571428571 [2024-01-27 16:09:45,054 INFO L175 Difference]: Start difference. First operand has 75 places, 54 transitions, 270 flow. Second operand 7 states and 223 transitions. [2024-01-27 16:09:45,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 107 transitions, 608 flow [2024-01-27 16:09:45,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 107 transitions, 577 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-01-27 16:09:45,693 INFO L231 Difference]: Finished difference. Result has 75 places, 54 transitions, 273 flow [2024-01-27 16:09:45,694 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=273, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2024-01-27 16:09:45,694 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 17 predicate places. [2024-01-27 16:09:45,694 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 273 flow [2024-01-27 16:09:45,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-01-27 16:09:45,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:09:45,695 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:09:45,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 16:09:45,695 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-01-27 16:09:45,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:09:45,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1062306118, now seen corresponding path program 1 times [2024-01-27 16:09:45,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:09:45,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661953655] [2024-01-27 16:09:45,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:09:45,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:09:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:09:45,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:09:45,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:09:45,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661953655] [2024-01-27 16:09:45,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661953655] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:09:45,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:09:45,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 16:09:45,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473782868] [2024-01-27 16:09:45,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:09:45,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 16:09:45,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:09:45,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 16:09:45,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-27 16:09:45,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-01-27 16:09:45,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 273 flow. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-01-27 16:09:45,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:09:45,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-01-27 16:09:45,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:09:48,389 INFO L124 PetriNetUnfolderBase]: 17284/27124 cut-off events. [2024-01-27 16:09:48,389 INFO L125 PetriNetUnfolderBase]: For 35819/36540 co-relation queries the response was YES. [2024-01-27 16:09:48,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75734 conditions, 27124 events. 17284/27124 cut-off events. For 35819/36540 co-relation queries the response was YES. Maximal size of possible extension queue 1160. Compared 210428 event pairs, 9149 based on Foata normal form. 649/26936 useless extension candidates. Maximal degree in co-relation 75707. Up to 18310 conditions per place. [2024-01-27 16:09:48,526 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 45 selfloop transitions, 6 changer transitions 47/120 dead transitions. [2024-01-27 16:09:48,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 120 transitions, 755 flow [2024-01-27 16:09:48,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-27 16:09:48,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-01-27 16:09:48,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2024-01-27 16:09:48,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6514285714285715 [2024-01-27 16:09:48,531 INFO L175 Difference]: Start difference. First operand has 75 places, 54 transitions, 273 flow. Second operand 7 states and 228 transitions. [2024-01-27 16:09:48,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 120 transitions, 755 flow [2024-01-27 16:09:48,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 120 transitions, 703 flow, removed 22 selfloop flow, removed 10 redundant places. [2024-01-27 16:09:48,962 INFO L231 Difference]: Finished difference. Result has 72 places, 58 transitions, 309 flow [2024-01-27 16:09:48,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=309, PETRI_PLACES=72, PETRI_TRANSITIONS=58} [2024-01-27 16:09:48,963 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2024-01-27 16:09:48,963 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 58 transitions, 309 flow [2024-01-27 16:09:48,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-01-27 16:09:48,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:09:48,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 16:09:48,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 16:09:48,964 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-01-27 16:09:48,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:09:48,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1190786983, now seen corresponding path program 1 times [2024-01-27 16:09:48,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:09:48,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563636662] [2024-01-27 16:09:48,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:09:48,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:09:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:09:49,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:09:49,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:09:49,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563636662] [2024-01-27 16:09:49,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563636662] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:09:49,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:09:49,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 16:09:49,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794212009] [2024-01-27 16:09:49,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:09:49,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 16:09:49,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:09:49,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 16:09:49,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 16:09:49,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-01-27 16:09:49,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 58 transitions, 309 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-01-27 16:09:49,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:09:49,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-01-27 16:09:49,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:09:52,645 INFO L124 PetriNetUnfolderBase]: 29484/44713 cut-off events. [2024-01-27 16:09:52,646 INFO L125 PetriNetUnfolderBase]: For 40652/44216 co-relation queries the response was YES. [2024-01-27 16:09:52,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111753 conditions, 44713 events. 29484/44713 cut-off events. For 40652/44216 co-relation queries the response was YES. Maximal size of possible extension queue 1665. Compared 334325 event pairs, 5587 based on Foata normal form. 1973/45239 useless extension candidates. Maximal degree in co-relation 111729. Up to 21792 conditions per place. [2024-01-27 16:09:52,951 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 59 selfloop transitions, 6 changer transitions 0/94 dead transitions. [2024-01-27 16:09:52,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 94 transitions, 549 flow [2024-01-27 16:09:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 16:09:52,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 16:09:52,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2024-01-27 16:09:52,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.705 [2024-01-27 16:09:52,953 INFO L175 Difference]: Start difference. First operand has 72 places, 58 transitions, 309 flow. Second operand 4 states and 141 transitions. [2024-01-27 16:09:52,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 94 transitions, 549 flow [2024-01-27 16:09:53,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 94 transitions, 539 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-01-27 16:09:53,050 INFO L231 Difference]: Finished difference. Result has 70 places, 63 transitions, 345 flow [2024-01-27 16:09:53,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=345, PETRI_PLACES=70, PETRI_TRANSITIONS=63} [2024-01-27 16:09:53,052 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2024-01-27 16:09:53,052 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 63 transitions, 345 flow [2024-01-27 16:09:53,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-01-27 16:09:53,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:09:53,053 INFO L208 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] [2024-01-27 16:09:53,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 16:09:53,053 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-01-27 16:09:53,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:09:53,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1962934966, now seen corresponding path program 1 times [2024-01-27 16:09:53,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:09:53,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690798868] [2024-01-27 16:09:53,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:09:53,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:09:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:09:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:09:53,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:09:53,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690798868] [2024-01-27 16:09:53,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690798868] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:09:53,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:09:53,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 16:09:53,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056679953] [2024-01-27 16:09:53,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:09:53,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 16:09:53,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:09:53,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 16:09:53,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-01-27 16:09:53,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-01-27 16:09:53,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 63 transitions, 345 flow. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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) [2024-01-27 16:09:53,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:09:53,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-01-27 16:09:53,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:09:57,884 INFO L124 PetriNetUnfolderBase]: 38109/55928 cut-off events. [2024-01-27 16:09:57,885 INFO L125 PetriNetUnfolderBase]: For 88676/91355 co-relation queries the response was YES. [2024-01-27 16:09:58,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171815 conditions, 55928 events. 38109/55928 cut-off events. For 88676/91355 co-relation queries the response was YES. Maximal size of possible extension queue 2261. Compared 420596 event pairs, 15347 based on Foata normal form. 815/53586 useless extension candidates. Maximal degree in co-relation 171790. Up to 24778 conditions per place. [2024-01-27 16:09:58,196 INFO L140 encePairwiseOnDemand]: 42/50 looper letters, 108 selfloop transitions, 17 changer transitions 2/144 dead transitions. [2024-01-27 16:09:58,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 144 transitions, 939 flow [2024-01-27 16:09:58,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-27 16:09:58,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-01-27 16:09:58,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 244 transitions. [2024-01-27 16:09:58,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.61 [2024-01-27 16:09:58,198 INFO L175 Difference]: Start difference. First operand has 70 places, 63 transitions, 345 flow. Second operand 8 states and 244 transitions. [2024-01-27 16:09:58,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 144 transitions, 939 flow [2024-01-27 16:09:58,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 144 transitions, 931 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-01-27 16:09:58,313 INFO L231 Difference]: Finished difference. Result has 82 places, 70 transitions, 472 flow [2024-01-27 16:09:58,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=472, PETRI_PLACES=82, PETRI_TRANSITIONS=70} [2024-01-27 16:09:58,314 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 24 predicate places. [2024-01-27 16:09:58,314 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 70 transitions, 472 flow [2024-01-27 16:09:58,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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) [2024-01-27 16:09:58,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:09:58,315 INFO L208 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] [2024-01-27 16:09:58,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 16:09:58,315 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-01-27 16:09:58,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:09:58,315 INFO L85 PathProgramCache]: Analyzing trace with hash -272478859, now seen corresponding path program 1 times [2024-01-27 16:09:58,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:09:58,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087286809] [2024-01-27 16:09:58,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:09:58,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:09:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:09:58,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:09:58,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:09:58,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087286809] [2024-01-27 16:09:58,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087286809] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:09:58,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:09:58,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 16:09:58,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016860027] [2024-01-27 16:09:58,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:09:58,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-27 16:09:58,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:09:58,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-27 16:09:58,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-27 16:09:58,405 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-01-27 16:09:58,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 472 flow. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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) [2024-01-27 16:09:58,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:09:58,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-01-27 16:09:58,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:10:02,856 INFO L124 PetriNetUnfolderBase]: 34756/52291 cut-off events. [2024-01-27 16:10:02,856 INFO L125 PetriNetUnfolderBase]: For 62645/66447 co-relation queries the response was YES. [2024-01-27 16:10:03,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145952 conditions, 52291 events. 34756/52291 cut-off events. For 62645/66447 co-relation queries the response was YES. Maximal size of possible extension queue 2076. Compared 392266 event pairs, 4816 based on Foata normal form. 2811/53251 useless extension candidates. Maximal degree in co-relation 145920. Up to 17841 conditions per place. [2024-01-27 16:10:03,144 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 75 selfloop transitions, 10 changer transitions 5/123 dead transitions. [2024-01-27 16:10:03,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 123 transitions, 832 flow [2024-01-27 16:10:03,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 16:10:03,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 16:10:03,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 181 transitions. [2024-01-27 16:10:03,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.724 [2024-01-27 16:10:03,145 INFO L175 Difference]: Start difference. First operand has 82 places, 70 transitions, 472 flow. Second operand 5 states and 181 transitions. [2024-01-27 16:10:03,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 123 transitions, 832 flow [2024-01-27 16:10:03,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 123 transitions, 808 flow, removed 12 selfloop flow, removed 0 redundant places. [2024-01-27 16:10:03,734 INFO L231 Difference]: Finished difference. Result has 88 places, 72 transitions, 487 flow [2024-01-27 16:10:03,734 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=487, PETRI_PLACES=88, PETRI_TRANSITIONS=72} [2024-01-27 16:10:03,734 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 30 predicate places. [2024-01-27 16:10:03,734 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 72 transitions, 487 flow [2024-01-27 16:10:03,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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) [2024-01-27 16:10:03,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:10:03,735 INFO L208 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] [2024-01-27 16:10:03,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 16:10:03,735 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-01-27 16:10:03,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:10:03,736 INFO L85 PathProgramCache]: Analyzing trace with hash 666991630, now seen corresponding path program 1 times [2024-01-27 16:10:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:10:03,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275645096] [2024-01-27 16:10:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:10:03,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:10:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:10:03,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:10:03,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:10:03,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275645096] [2024-01-27 16:10:03,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275645096] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:10:03,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:10:03,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-01-27 16:10:03,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943255733] [2024-01-27 16:10:03,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:10:03,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-27 16:10:03,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:10:03,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-27 16:10:03,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-01-27 16:10:03,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-01-27 16:10:03,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 72 transitions, 487 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-01-27 16:10:03,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:10:03,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-01-27 16:10:03,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 16:10:07,606 INFO L124 PetriNetUnfolderBase]: 27000/40335 cut-off events. [2024-01-27 16:10:07,606 INFO L125 PetriNetUnfolderBase]: For 61146/63840 co-relation queries the response was YES. [2024-01-27 16:10:07,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122864 conditions, 40335 events. 27000/40335 cut-off events. For 61146/63840 co-relation queries the response was YES. Maximal size of possible extension queue 1801. Compared 292561 event pairs, 3284 based on Foata normal form. 1739/40326 useless extension candidates. Maximal degree in co-relation 122828. Up to 13951 conditions per place. [2024-01-27 16:10:07,817 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 88 selfloop transitions, 14 changer transitions 3/138 dead transitions. [2024-01-27 16:10:07,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 138 transitions, 934 flow [2024-01-27 16:10:07,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-27 16:10:07,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-27 16:10:07,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 219 transitions. [2024-01-27 16:10:07,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.73 [2024-01-27 16:10:07,819 INFO L175 Difference]: Start difference. First operand has 88 places, 72 transitions, 487 flow. Second operand 6 states and 219 transitions. [2024-01-27 16:10:07,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 138 transitions, 934 flow [2024-01-27 16:10:07,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 138 transitions, 912 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-01-27 16:10:07,870 INFO L231 Difference]: Finished difference. Result has 89 places, 77 transitions, 551 flow [2024-01-27 16:10:07,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=551, PETRI_PLACES=89, PETRI_TRANSITIONS=77} [2024-01-27 16:10:07,871 INFO L281 CegarLoopForPetriNet]: 58 programPoint places, 31 predicate places. [2024-01-27 16:10:07,871 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 77 transitions, 551 flow [2024-01-27 16:10:07,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-01-27 16:10:07,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 16:10:07,872 INFO L208 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] [2024-01-27 16:10:07,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-27 16:10:07,872 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-01-27 16:10:07,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 16:10:07,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1813888762, now seen corresponding path program 1 times [2024-01-27 16:10:07,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 16:10:07,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668724024] [2024-01-27 16:10:07,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 16:10:07,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 16:10:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 16:10:08,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 16:10:08,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 16:10:08,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668724024] [2024-01-27 16:10:08,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668724024] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 16:10:08,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 16:10:08,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-01-27 16:10:08,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878191062] [2024-01-27 16:10:08,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 16:10:08,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-27 16:10:08,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 16:10:08,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-27 16:10:08,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-01-27 16:10:08,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-01-27 16:10:08,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 77 transitions, 551 flow. Second operand has 7 states, 7 states have (on average 22.857142857142858) internal successors, (160), 7 states have internal predecessors, (160), 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) [2024-01-27 16:10:08,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 16:10:08,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-01-27 16:10:08,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand