./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c --full-output --traceabstraction.positions.where.we.compute.the.hoare.annotation All --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 448d4d75 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/weaver/parallel-ticket-5.wvr.c -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 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 --traceabstraction.positions.where.we.compute.the.hoare.annotation All --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.owicki-witnesses-448d4d7-m [2024-02-20 12:05:30,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-20 12:05:30,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-20 12:05:30,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-20 12:05:30,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-20 12:05:30,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-20 12:05:30,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-20 12:05:30,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-20 12:05:30,788 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-20 12:05:30,792 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-20 12:05:30,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-20 12:05:30,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-20 12:05:30,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-20 12:05:30,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-20 12:05:30,795 INFO L153 SettingsManager]: * Use SBE=true [2024-02-20 12:05:30,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-20 12:05:30,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-20 12:05:30,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-20 12:05:30,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-20 12:05:30,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-20 12:05:30,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-20 12:05:30,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-20 12:05:30,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-20 12:05:30,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-20 12:05:30,798 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-20 12:05:30,798 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-20 12:05:30,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-20 12:05:30,799 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-20 12:05:30,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-20 12:05:30,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-20 12:05:30,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-20 12:05:30,801 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-20 12:05:30,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-20 12:05:30,801 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-20 12:05:30,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-20 12:05:30,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-20 12:05:30,802 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-20 12:05:30,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-20 12:05:30,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-20 12:05:30,803 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-20 12:05:30,803 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-20 12:05:30,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-20 12:05:30,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-20 12:05:30,803 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 084d7ddce3c53222c6533ccae99969e854061e3b422eaf94457157515e3bd009 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All [2024-02-20 12:05:31,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-20 12:05:31,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-20 12:05:31,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-20 12:05:31,069 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-20 12:05:31,070 INFO L274 PluginConnector]: CDTParser initialized [2024-02-20 12:05:31,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2024-02-20 12:05:32,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-20 12:05:32,409 INFO L384 CDTParser]: Found 1 translation units. [2024-02-20 12:05:32,409 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2024-02-20 12:05:32,419 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee8ca845d/5322f38380be4f2e9ea89540e6ccf54f/FLAG0e1533c54 [2024-02-20 12:05:32,430 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee8ca845d/5322f38380be4f2e9ea89540e6ccf54f [2024-02-20 12:05:32,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-20 12:05:32,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-02-20 12:05:32,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-20 12:05:32,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-20 12:05:32,443 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-20 12:05:32,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6c8cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32, skipping insertion in model container [2024-02-20 12:05:32,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,468 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-20 12:05:32,630 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2024-02-20 12:05:32,635 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-20 12:05:32,644 INFO L202 MainTranslator]: Completed pre-run [2024-02-20 12:05:32,669 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2024-02-20 12:05:32,674 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-20 12:05:32,695 INFO L206 MainTranslator]: Completed translation [2024-02-20 12:05:32,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32 WrapperNode [2024-02-20 12:05:32,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-20 12:05:32,697 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-20 12:05:32,697 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-20 12:05:32,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-20 12:05:32,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,711 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,745 INFO L138 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 246 [2024-02-20 12:05:32,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-20 12:05:32,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-20 12:05:32,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-20 12:05:32,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-20 12:05:32,788 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,805 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,827 INFO L175 MemorySlicer]: Split 12 memory accesses to 6 slices as follows [2, 2, 2, 2, 2, 2]. 17 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 1, 1, 1, 1]. [2024-02-20 12:05:32,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-20 12:05:32,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-20 12:05:32,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-20 12:05:32,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-20 12:05:32,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (1/1) ... [2024-02-20 12:05:32,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-20 12:05:32,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-20 12:05:32,889 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) [2024-02-20 12:05:32,901 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 [2024-02-20 12:05:32,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-20 12:05:32,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-20 12:05:32,944 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-20 12:05:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-20 12:05:32,944 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-20 12:05:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-20 12:05:32,944 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-20 12:05:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-20 12:05:32,946 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-20 12:05:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-20 12:05:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-20 12:05:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-20 12:05:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-20 12:05:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-20 12:05:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-20 12:05:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-02-20 12:05:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-02-20 12:05:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-20 12:05:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-20 12:05:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-20 12:05:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-20 12:05:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-20 12:05:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-20 12:05:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-20 12:05:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-20 12:05:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-20 12:05:32,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-20 12:05:32,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-20 12:05:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-20 12:05:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-20 12:05:32,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-20 12:05:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-20 12:05:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-20 12:05:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-20 12:05:32,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-20 12:05:32,953 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-20 12:05:33,105 INFO L244 CfgBuilder]: Building ICFG [2024-02-20 12:05:33,108 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-20 12:05:33,394 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-20 12:05:33,395 INFO L293 CfgBuilder]: Performing block encoding [2024-02-20 12:05:33,680 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-20 12:05:33,680 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-20 12:05:33,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:05:33 BoogieIcfgContainer [2024-02-20 12:05:33,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-20 12:05:33,683 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-20 12:05:33,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-20 12:05:33,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-20 12:05:33,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 12:05:32" (1/3) ... [2024-02-20 12:05:33,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f4a00e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 12:05:33, skipping insertion in model container [2024-02-20 12:05:33,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 12:05:32" (2/3) ... [2024-02-20 12:05:33,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f4a00e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 12:05:33, skipping insertion in model container [2024-02-20 12:05:33,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:05:33" (3/3) ... [2024-02-20 12:05:33,691 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2024-02-20 12:05:33,707 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-20 12:05:33,708 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-02-20 12:05:33,708 INFO L635 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-20 12:05:33,793 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-02-20 12:05:33,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 54 transitions, 143 flow [2024-02-20 12:05:33,869 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2024-02-20 12:05:33,870 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-02-20 12:05:33,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 49 events. 0/49 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-02-20 12:05:33,872 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 54 transitions, 143 flow [2024-02-20 12:05:33,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 48 transitions, 126 flow [2024-02-20 12:05:33,890 INFO L368 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-20 12:05:33,896 INFO L369 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=All, 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;@4168278a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-20 12:05:33,897 INFO L370 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-02-20 12:05:33,929 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-20 12:05:33,930 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2024-02-20 12:05:33,930 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-02-20 12:05:33,930 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-20 12:05:33,931 INFO L234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-20 12:05:33,931 INFO L432 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-02-20 12:05:33,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-20 12:05:33,936 INFO L85 PathProgramCache]: Analyzing trace with hash 18817705, now seen corresponding path program 1 times [2024-02-20 12:05:33,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-20 12:05:33,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068781098] [2024-02-20 12:05:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-20 12:05:33,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-20 12:05:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-20 12:05:35,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-20 12:05:35,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-20 12:05:35,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068781098] [2024-02-20 12:05:35,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068781098] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-20 12:05:35,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-20 12:05:35,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-20 12:05:35,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625561056] [2024-02-20 12:05:35,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-20 12:05:35,224 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-20 12:05:35,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-20 12:05:35,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-20 12:05:35,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-02-20 12:05:35,275 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 54 [2024-02-20 12:05:35,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-20 12:05:35,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-20 12:05:35,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 54 [2024-02-20 12:05:35,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-20 12:05:45,756 INFO L124 PetriNetUnfolderBase]: 137327/176628 cut-off events. [2024-02-20 12:05:45,757 INFO L125 PetriNetUnfolderBase]: For 8077/8077 co-relation queries the response was YES. [2024-02-20 12:05:46,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361671 conditions, 176628 events. 137327/176628 cut-off events. For 8077/8077 co-relation queries the response was YES. Maximal size of possible extension queue 3451. Compared 988324 event pairs, 35738 based on Foata normal form. 1/176629 useless extension candidates. Maximal degree in co-relation 308410. Up to 70875 conditions per place. [2024-02-20 12:05:46,861 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 114 selfloop transitions, 11 changer transitions 39/165 dead transitions. [2024-02-20 12:05:46,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 165 transitions, 742 flow [2024-02-20 12:05:46,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-02-20 12:05:46,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-02-20 12:05:46,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2024-02-20 12:05:46,872 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6203703703703703 [2024-02-20 12:05:46,876 INFO L308 CegarLoopForPetriNet]: 64 programPoint places, 5 predicate places. [2024-02-20 12:05:46,876 INFO L507 AbstractCegarLoop]: Abstraction has has 69 places, 165 transitions, 742 flow [2024-02-20 12:05:46,876 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-20 12:05:46,876 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-20 12:05:46,877 INFO L234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-20 12:05:46,877 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-20 12:05:46,877 INFO L432 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-02-20 12:05:46,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-20 12:05:46,878 INFO L85 PathProgramCache]: Analyzing trace with hash 518639259, now seen corresponding path program 2 times [2024-02-20 12:05:46,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-20 12:05:46,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823595881] [2024-02-20 12:05:46,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-20 12:05:46,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-20 12:05:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-20 12:05:47,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-20 12:05:47,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-20 12:05:47,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823595881] [2024-02-20 12:05:47,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823595881] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-20 12:05:47,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-20 12:05:47,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-02-20 12:05:47,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164542212] [2024-02-20 12:05:47,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-20 12:05:47,026 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-02-20 12:05:47,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-20 12:05:47,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-02-20 12:05:47,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-02-20 12:05:47,027 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-02-20 12:05:47,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 165 transitions, 742 flow. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 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) [2024-02-20 12:05:47,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-20 12:05:47,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-02-20 12:05:47,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-20 12:06:01,825 INFO L124 PetriNetUnfolderBase]: 186717/240866 cut-off events. [2024-02-20 12:06:01,826 INFO L125 PetriNetUnfolderBase]: For 68863/68863 co-relation queries the response was YES. [2024-02-20 12:06:02,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684669 conditions, 240866 events. 186717/240866 cut-off events. For 68863/68863 co-relation queries the response was YES. Maximal size of possible extension queue 4943. Compared 1420945 event pairs, 27182 based on Foata normal form. 292/241158 useless extension candidates. Maximal degree in co-relation 681405. Up to 98909 conditions per place. [2024-02-20 12:06:03,156 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 333 selfloop transitions, 136 changer transitions 186/675 dead transitions. [2024-02-20 12:06:03,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 675 transitions, 4304 flow [2024-02-20 12:06:03,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-02-20 12:06:03,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-02-20 12:06:03,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 287 transitions. [2024-02-20 12:06:03,160 INFO L543 CegarLoopForPetriNet]: DFA transition density 0.6643518518518519 [2024-02-20 12:06:03,161 INFO L308 CegarLoopForPetriNet]: 64 programPoint places, 12 predicate places. [2024-02-20 12:06:03,161 INFO L507 AbstractCegarLoop]: Abstraction has has 76 places, 675 transitions, 4304 flow [2024-02-20 12:06:03,162 INFO L508 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 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) [2024-02-20 12:06:03,162 INFO L226 CegarLoopForPetriNet]: Found error trace [2024-02-20 12:06:03,162 INFO L234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-20 12:06:03,162 WARN L489 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-20 12:06:03,163 INFO L432 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-02-20 12:06:03,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-20 12:06:03,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1351655625, now seen corresponding path program 3 times [2024-02-20 12:06:03,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-20 12:06:03,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731969873] [2024-02-20 12:06:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-20 12:06:03,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-20 12:06:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-20 12:06:03,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-20 12:06:03,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-20 12:06:03,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731969873] [2024-02-20 12:06:03,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731969873] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-20 12:06:03,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-20 12:06:03,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-20 12:06:03,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920959528] [2024-02-20 12:06:03,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-20 12:06:03,295 INFO L584 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-20 12:06:03,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-20 12:06:03,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-20 12:06:03,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-02-20 12:06:03,296 INFO L498 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-02-20 12:06:03,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 675 transitions, 4304 flow. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 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) [2024-02-20 12:06:03,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-20 12:06:03,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-02-20 12:06:03,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand