./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de 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-4.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 d87195cdf1d0fd4bcadf67f37be6f46388ea22a2ec77b383d012327e126a2173 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 16:46:20,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 16:46:20,335 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 16:46:20,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 16:46:20,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 16:46:20,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 16:46:20,364 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 16:46:20,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 16:46:20,365 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 16:46:20,368 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 16:46:20,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 16:46:20,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 16:46:20,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 16:46:20,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 16:46:20,371 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 16:46:20,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 16:46:20,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 16:46:20,371 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 16:46:20,372 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 16:46:20,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 16:46:20,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 16:46:20,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 16:46:20,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 16:46:20,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 16:46:20,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 16:46:20,373 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 16:46:20,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 16:46:20,373 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 16:46:20,374 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 16:46:20,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 16:46:20,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 16:46:20,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 16:46:20,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:46:20,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 16:46:20,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 16:46:20,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 16:46:20,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 16:46:20,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 16:46:20,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 16:46:20,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 16:46:20,377 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 16:46:20,377 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 16:46:20,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 16:46:20,377 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d87195cdf1d0fd4bcadf67f37be6f46388ea22a2ec77b383d012327e126a2173 [2024-06-27 16:46:20,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 16:46:20,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 16:46:20,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 16:46:20,636 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 16:46:20,637 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 16:46:20,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2024-06-27 16:46:21,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 16:46:21,793 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 16:46:21,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-4.wvr.c [2024-06-27 16:46:21,800 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d3e9e62b/2d19110d015f458d99a9371e7b6f85bd/FLAG3cb73ec70 [2024-06-27 16:46:21,809 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d3e9e62b/2d19110d015f458d99a9371e7b6f85bd [2024-06-27 16:46:21,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 16:46:21,811 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-06-27 16:46:21,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 16:46:21,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 16:46:21,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 16:46:21,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:46:21" (1/1) ... [2024-06-27 16:46:21,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4378f3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:21, skipping insertion in model container [2024-06-27 16:46:21,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:46:21" (1/1) ... [2024-06-27 16:46:21,839 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 16:46:21,981 WARN L247 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-4.wvr.c[3578,3591] [2024-06-27 16:46:21,987 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:46:21,994 INFO L202 MainTranslator]: Completed pre-run [2024-06-27 16:46:22,010 WARN L247 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-4.wvr.c[3578,3591] [2024-06-27 16:46:22,011 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:46:22,023 INFO L206 MainTranslator]: Completed translation [2024-06-27 16:46:22,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22 WrapperNode [2024-06-27 16:46:22,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 16:46:22,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 16:46:22,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 16:46:22,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 16:46:22,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,050 INFO L138 Inliner]: procedures = 22, calls = 50, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 186 [2024-06-27 16:46:22,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 16:46:22,051 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 16:46:22,051 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 16:46:22,051 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 16:46:22,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,061 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,079 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-27 16:46:22,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,096 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,097 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 16:46:22,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 16:46:22,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 16:46:22,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 16:46:22,100 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (1/1) ... [2024-06-27 16:46:22,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:46:22,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 16:46:22,145 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) [2024-06-27 16:46:22,171 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 [2024-06-27 16:46:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 16:46:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-27 16:46:22,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-27 16:46:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-27 16:46:22,193 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-27 16:46:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-27 16:46:22,193 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-27 16:46:22,194 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-27 16:46:22,194 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-27 16:46:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 16:46:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 16:46:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 16:46:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 16:46:22,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 16:46:22,196 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 16:46:22,294 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 16:46:22,296 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 16:46:22,506 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 16:46:22,507 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 16:46:22,673 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 16:46:22,676 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 16:46:22,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:46:22 BoogieIcfgContainer [2024-06-27 16:46:22,676 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 16:46:22,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 16:46:22,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 16:46:22,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 16:46:22,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 04:46:21" (1/3) ... [2024-06-27 16:46:22,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f51031b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:46:22, skipping insertion in model container [2024-06-27 16:46:22,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:46:22" (2/3) ... [2024-06-27 16:46:22,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f51031b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:46:22, skipping insertion in model container [2024-06-27 16:46:22,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:46:22" (3/3) ... [2024-06-27 16:46:22,684 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2024-06-27 16:46:22,689 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-06-27 16:46:22,697 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 16:46:22,697 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-27 16:46:22,697 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 16:46:22,753 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-27 16:46:22,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 45 transitions, 118 flow [2024-06-27 16:46:22,812 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2024-06-27 16:46:22,813 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-27 16:46:22,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 41 events. 0/41 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 80 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-27 16:46:22,814 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 45 transitions, 118 flow [2024-06-27 16:46:22,816 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 40 transitions, 104 flow [2024-06-27 16:46:22,826 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 16:46:22,831 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;@45ad019, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 16:46:22,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-06-27 16:46:22,842 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 16:46:22,844 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2024-06-27 16:46:22,844 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-27 16:46:22,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:22,845 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:22,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:22,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:22,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1533638089, now seen corresponding path program 1 times [2024-06-27 16:46:22,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:22,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967685080] [2024-06-27 16:46:22,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:22,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:23,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:23,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:23,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967685080] [2024-06-27 16:46:23,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967685080] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:23,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:23,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 16:46:23,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696342782] [2024-06-27 16:46:23,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:23,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 16:46:23,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:23,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 16:46:23,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-27 16:46:23,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2024-06-27 16:46:23,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:46:23,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:23,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2024-06-27 16:46:23,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:25,039 INFO L124 PetriNetUnfolderBase]: 15778/21691 cut-off events. [2024-06-27 16:46:25,039 INFO L125 PetriNetUnfolderBase]: For 1470/1470 co-relation queries the response was YES. [2024-06-27 16:46:25,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44681 conditions, 21691 events. 15778/21691 cut-off events. For 1470/1470 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 121028 event pairs, 10182 based on Foata normal form. 1/21656 useless extension candidates. Maximal degree in co-relation 40935. Up to 12528 conditions per place. [2024-06-27 16:46:25,135 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 72 selfloop transitions, 5 changer transitions 7/89 dead transitions. [2024-06-27 16:46:25,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 89 transitions, 397 flow [2024-06-27 16:46:25,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 16:46:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 16:46:25,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2024-06-27 16:46:25,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6722222222222223 [2024-06-27 16:46:25,148 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 104 flow. Second operand 4 states and 121 transitions. [2024-06-27 16:46:25,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 89 transitions, 397 flow [2024-06-27 16:46:25,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 89 transitions, 363 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-06-27 16:46:25,227 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 120 flow [2024-06-27 16:46:25,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2024-06-27 16:46:25,230 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-06-27 16:46:25,231 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 120 flow [2024-06-27 16:46:25,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:46:25,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:25,231 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:25,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 16:46:25,232 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:25,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:25,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1934389341, now seen corresponding path program 2 times [2024-06-27 16:46:25,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:25,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043551989] [2024-06-27 16:46:25,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:25,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:25,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:25,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:25,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043551989] [2024-06-27 16:46:25,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043551989] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:25,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:25,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 16:46:25,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993048195] [2024-06-27 16:46:25,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:25,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 16:46:25,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:25,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 16:46:25,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 16:46:25,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:25,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-06-27 16:46:25,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:25,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:25,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:26,296 INFO L124 PetriNetUnfolderBase]: 12093/18342 cut-off events. [2024-06-27 16:46:26,297 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2024-06-27 16:46:26,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37412 conditions, 18342 events. 12093/18342 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 932. Compared 124890 event pairs, 3771 based on Foata normal form. 196/18095 useless extension candidates. Maximal degree in co-relation 16203. Up to 5780 conditions per place. [2024-06-27 16:46:26,386 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 80 selfloop transitions, 17 changer transitions 0/110 dead transitions. [2024-06-27 16:46:26,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 110 transitions, 461 flow [2024-06-27 16:46:26,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 16:46:26,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 16:46:26,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2024-06-27 16:46:26,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2024-06-27 16:46:26,390 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 120 flow. Second operand 5 states and 168 transitions. [2024-06-27 16:46:26,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 110 transitions, 461 flow [2024-06-27 16:46:26,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 110 transitions, 451 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-06-27 16:46:26,397 INFO L231 Difference]: Finished difference. Result has 53 places, 59 transitions, 214 flow [2024-06-27 16:46:26,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=53, PETRI_TRANSITIONS=59} [2024-06-27 16:46:26,398 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 0 predicate places. [2024-06-27 16:46:26,399 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 59 transitions, 214 flow [2024-06-27 16:46:26,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-06-27 16:46:26,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:26,399 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:26,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 16:46:26,400 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:26,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:26,400 INFO L85 PathProgramCache]: Analyzing trace with hash -816728865, now seen corresponding path program 3 times [2024-06-27 16:46:26,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:26,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184503376] [2024-06-27 16:46:26,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:26,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:26,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:26,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:26,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184503376] [2024-06-27 16:46:26,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184503376] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:26,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:26,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 16:46:26,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360539419] [2024-06-27 16:46:26,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:26,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 16:46:26,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:26,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 16:46:26,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 16:46:26,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:26,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 59 transitions, 214 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-06-27 16:46:26,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:26,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:26,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:27,429 INFO L124 PetriNetUnfolderBase]: 12038/18592 cut-off events. [2024-06-27 16:46:27,430 INFO L125 PetriNetUnfolderBase]: For 8512/8623 co-relation queries the response was YES. [2024-06-27 16:46:27,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47121 conditions, 18592 events. 12038/18592 cut-off events. For 8512/8623 co-relation queries the response was YES. Maximal size of possible extension queue 936. Compared 130624 event pairs, 3299 based on Foata normal form. 230/18439 useless extension candidates. Maximal degree in co-relation 12290. Up to 5559 conditions per place. [2024-06-27 16:46:27,511 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 76 selfloop transitions, 22 changer transitions 0/111 dead transitions. [2024-06-27 16:46:27,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 111 transitions, 561 flow [2024-06-27 16:46:27,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 16:46:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 16:46:27,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-06-27 16:46:27,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7288888888888889 [2024-06-27 16:46:27,514 INFO L175 Difference]: Start difference. First operand has 53 places, 59 transitions, 214 flow. Second operand 5 states and 164 transitions. [2024-06-27 16:46:27,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 111 transitions, 561 flow [2024-06-27 16:46:27,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 111 transitions, 561 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-27 16:46:27,519 INFO L231 Difference]: Finished difference. Result has 59 places, 65 transitions, 311 flow [2024-06-27 16:46:27,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=59, PETRI_TRANSITIONS=65} [2024-06-27 16:46:27,521 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 6 predicate places. [2024-06-27 16:46:27,521 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 65 transitions, 311 flow [2024-06-27 16:46:27,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-06-27 16:46:27,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:27,521 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:27,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 16:46:27,522 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:27,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:27,523 INFO L85 PathProgramCache]: Analyzing trace with hash -47854339, now seen corresponding path program 4 times [2024-06-27 16:46:27,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:27,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347156521] [2024-06-27 16:46:27,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:27,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:27,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:27,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:27,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347156521] [2024-06-27 16:46:27,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347156521] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:27,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:27,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 16:46:27,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998060257] [2024-06-27 16:46:27,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:27,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 16:46:27,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:27,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 16:46:27,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 16:46:27,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:27,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 65 transitions, 311 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 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) [2024-06-27 16:46:27,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:27,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:27,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:28,697 INFO L124 PetriNetUnfolderBase]: 12179/19174 cut-off events. [2024-06-27 16:46:28,697 INFO L125 PetriNetUnfolderBase]: For 17252/17437 co-relation queries the response was YES. [2024-06-27 16:46:28,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53550 conditions, 19174 events. 12179/19174 cut-off events. For 17252/17437 co-relation queries the response was YES. Maximal size of possible extension queue 974. Compared 138194 event pairs, 2473 based on Foata normal form. 452/19196 useless extension candidates. Maximal degree in co-relation 14140. Up to 6821 conditions per place. [2024-06-27 16:46:28,787 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 93 selfloop transitions, 59 changer transitions 5/170 dead transitions. [2024-06-27 16:46:28,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 170 transitions, 1035 flow [2024-06-27 16:46:28,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 16:46:28,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 16:46:28,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 205 transitions. [2024-06-27 16:46:28,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2024-06-27 16:46:28,789 INFO L175 Difference]: Start difference. First operand has 59 places, 65 transitions, 311 flow. Second operand 6 states and 205 transitions. [2024-06-27 16:46:28,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 170 transitions, 1035 flow [2024-06-27 16:46:28,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 170 transitions, 994 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 16:46:28,798 INFO L231 Difference]: Finished difference. Result has 65 places, 102 transitions, 718 flow [2024-06-27 16:46:28,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=718, PETRI_PLACES=65, PETRI_TRANSITIONS=102} [2024-06-27 16:46:28,799 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 12 predicate places. [2024-06-27 16:46:28,799 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 102 transitions, 718 flow [2024-06-27 16:46:28,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 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) [2024-06-27 16:46:28,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:28,799 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:28,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 16:46:28,800 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:28,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:28,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1780414977, now seen corresponding path program 5 times [2024-06-27 16:46:28,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:28,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131083883] [2024-06-27 16:46:28,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:28,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:28,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:28,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131083883] [2024-06-27 16:46:28,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131083883] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:28,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:28,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 16:46:28,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107141334] [2024-06-27 16:46:28,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:28,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 16:46:28,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:28,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 16:46:28,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 16:46:28,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:28,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 102 transitions, 718 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-06-27 16:46:28,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:28,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:28,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:29,833 INFO L124 PetriNetUnfolderBase]: 10687/17379 cut-off events. [2024-06-27 16:46:29,834 INFO L125 PetriNetUnfolderBase]: For 35283/35697 co-relation queries the response was YES. [2024-06-27 16:46:29,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55451 conditions, 17379 events. 10687/17379 cut-off events. For 35283/35697 co-relation queries the response was YES. Maximal size of possible extension queue 822. Compared 128151 event pairs, 2687 based on Foata normal form. 386/17521 useless extension candidates. Maximal degree in co-relation 12064. Up to 7287 conditions per place. [2024-06-27 16:46:29,930 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 93 selfloop transitions, 45 changer transitions 4/155 dead transitions. [2024-06-27 16:46:29,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 155 transitions, 1240 flow [2024-06-27 16:46:29,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 16:46:29,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 16:46:29,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 162 transitions. [2024-06-27 16:46:29,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.72 [2024-06-27 16:46:29,932 INFO L175 Difference]: Start difference. First operand has 65 places, 102 transitions, 718 flow. Second operand 5 states and 162 transitions. [2024-06-27 16:46:29,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 155 transitions, 1240 flow [2024-06-27 16:46:29,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 155 transitions, 1226 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-06-27 16:46:29,954 INFO L231 Difference]: Finished difference. Result has 71 places, 111 transitions, 931 flow [2024-06-27 16:46:29,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=931, PETRI_PLACES=71, PETRI_TRANSITIONS=111} [2024-06-27 16:46:29,954 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 18 predicate places. [2024-06-27 16:46:29,954 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 111 transitions, 931 flow [2024-06-27 16:46:29,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-06-27 16:46:29,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:29,955 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:29,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 16:46:29,955 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:29,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:29,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1402267385, now seen corresponding path program 6 times [2024-06-27 16:46:29,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:29,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267985306] [2024-06-27 16:46:29,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:29,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:30,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:30,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:30,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267985306] [2024-06-27 16:46:30,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267985306] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:30,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:30,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 16:46:30,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555393374] [2024-06-27 16:46:30,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:30,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 16:46:30,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:30,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 16:46:30,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-06-27 16:46:30,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:30,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 111 transitions, 931 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 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) [2024-06-27 16:46:30,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:30,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:30,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:30,891 INFO L124 PetriNetUnfolderBase]: 9713/15462 cut-off events. [2024-06-27 16:46:30,891 INFO L125 PetriNetUnfolderBase]: For 41606/42339 co-relation queries the response was YES. [2024-06-27 16:46:30,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53692 conditions, 15462 events. 9713/15462 cut-off events. For 41606/42339 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 109128 event pairs, 1954 based on Foata normal form. 419/15484 useless extension candidates. Maximal degree in co-relation 16319. Up to 5203 conditions per place. [2024-06-27 16:46:30,983 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 88 selfloop transitions, 70 changer transitions 2/173 dead transitions. [2024-06-27 16:46:30,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 173 transitions, 1492 flow [2024-06-27 16:46:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-27 16:46:30,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-27 16:46:30,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 199 transitions. [2024-06-27 16:46:30,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.737037037037037 [2024-06-27 16:46:30,985 INFO L175 Difference]: Start difference. First operand has 71 places, 111 transitions, 931 flow. Second operand 6 states and 199 transitions. [2024-06-27 16:46:30,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 173 transitions, 1492 flow [2024-06-27 16:46:31,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 173 transitions, 1435 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-06-27 16:46:31,010 INFO L231 Difference]: Finished difference. Result has 75 places, 114 transitions, 1086 flow [2024-06-27 16:46:31,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1086, PETRI_PLACES=75, PETRI_TRANSITIONS=114} [2024-06-27 16:46:31,010 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 22 predicate places. [2024-06-27 16:46:31,011 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 114 transitions, 1086 flow [2024-06-27 16:46:31,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 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) [2024-06-27 16:46:31,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:31,011 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:31,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 16:46:31,011 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:31,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:31,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1730224413, now seen corresponding path program 7 times [2024-06-27 16:46:31,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:31,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660734824] [2024-06-27 16:46:31,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:31,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:31,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:31,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:31,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660734824] [2024-06-27 16:46:31,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660734824] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:31,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:31,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:46:31,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038085643] [2024-06-27 16:46:31,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:31,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 16:46:31,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:31,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 16:46:31,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-27 16:46:31,092 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:31,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 114 transitions, 1086 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-06-27 16:46:31,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:31,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:31,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:32,175 INFO L124 PetriNetUnfolderBase]: 9912/15936 cut-off events. [2024-06-27 16:46:32,175 INFO L125 PetriNetUnfolderBase]: For 55579/56398 co-relation queries the response was YES. [2024-06-27 16:46:32,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58380 conditions, 15936 events. 9912/15936 cut-off events. For 55579/56398 co-relation queries the response was YES. Maximal size of possible extension queue 785. Compared 114994 event pairs, 2069 based on Foata normal form. 443/15968 useless extension candidates. Maximal degree in co-relation 18218. Up to 5203 conditions per place. [2024-06-27 16:46:32,265 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 106 selfloop transitions, 89 changer transitions 1/209 dead transitions. [2024-06-27 16:46:32,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 209 transitions, 2005 flow [2024-06-27 16:46:32,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:46:32,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:46:32,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 255 transitions. [2024-06-27 16:46:32,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-06-27 16:46:32,267 INFO L175 Difference]: Start difference. First operand has 75 places, 114 transitions, 1086 flow. Second operand 8 states and 255 transitions. [2024-06-27 16:46:32,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 209 transitions, 2005 flow [2024-06-27 16:46:32,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 209 transitions, 1820 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-06-27 16:46:32,305 INFO L231 Difference]: Finished difference. Result has 79 places, 133 transitions, 1401 flow [2024-06-27 16:46:32,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1401, PETRI_PLACES=79, PETRI_TRANSITIONS=133} [2024-06-27 16:46:32,306 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 26 predicate places. [2024-06-27 16:46:32,306 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 133 transitions, 1401 flow [2024-06-27 16:46:32,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-06-27 16:46:32,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:32,306 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:32,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 16:46:32,307 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:32,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:32,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1373929515, now seen corresponding path program 8 times [2024-06-27 16:46:32,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:32,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669702460] [2024-06-27 16:46:32,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:32,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:32,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:32,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:32,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669702460] [2024-06-27 16:46:32,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669702460] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:32,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:32,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:46:32,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31015165] [2024-06-27 16:46:32,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:32,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 16:46:32,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:32,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 16:46:32,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-27 16:46:32,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:32,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 133 transitions, 1401 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-06-27 16:46:32,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:32,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:32,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:33,388 INFO L124 PetriNetUnfolderBase]: 8903/14488 cut-off events. [2024-06-27 16:46:33,389 INFO L125 PetriNetUnfolderBase]: For 48889/49507 co-relation queries the response was YES. [2024-06-27 16:46:33,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53435 conditions, 14488 events. 8903/14488 cut-off events. For 48889/49507 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 103980 event pairs, 1841 based on Foata normal form. 482/14641 useless extension candidates. Maximal degree in co-relation 15824. Up to 4669 conditions per place. [2024-06-27 16:46:33,454 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 102 selfloop transitions, 96 changer transitions 15/226 dead transitions. [2024-06-27 16:46:33,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 226 transitions, 2299 flow [2024-06-27 16:46:33,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:46:33,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:46:33,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2024-06-27 16:46:33,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7194444444444444 [2024-06-27 16:46:33,456 INFO L175 Difference]: Start difference. First operand has 79 places, 133 transitions, 1401 flow. Second operand 8 states and 259 transitions. [2024-06-27 16:46:33,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 226 transitions, 2299 flow [2024-06-27 16:46:33,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 226 transitions, 2169 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-27 16:46:33,495 INFO L231 Difference]: Finished difference. Result has 85 places, 140 transitions, 1595 flow [2024-06-27 16:46:33,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1235, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1595, PETRI_PLACES=85, PETRI_TRANSITIONS=140} [2024-06-27 16:46:33,496 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 32 predicate places. [2024-06-27 16:46:33,496 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 140 transitions, 1595 flow [2024-06-27 16:46:33,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-06-27 16:46:33,497 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:33,497 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:33,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 16:46:33,497 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:33,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:33,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2054732647, now seen corresponding path program 9 times [2024-06-27 16:46:33,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:33,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935269434] [2024-06-27 16:46:33,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:33,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:33,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:33,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:33,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935269434] [2024-06-27 16:46:33,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935269434] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:33,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:33,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:46:33,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746000390] [2024-06-27 16:46:33,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:33,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 16:46:33,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:33,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 16:46:33,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-27 16:46:33,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:33,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 140 transitions, 1595 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-06-27 16:46:33,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:33,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:33,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:34,399 INFO L124 PetriNetUnfolderBase]: 7433/12352 cut-off events. [2024-06-27 16:46:34,399 INFO L125 PetriNetUnfolderBase]: For 47105/47503 co-relation queries the response was YES. [2024-06-27 16:46:34,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47336 conditions, 12352 events. 7433/12352 cut-off events. For 47105/47503 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 88078 event pairs, 1590 based on Foata normal form. 335/12499 useless extension candidates. Maximal degree in co-relation 14192. Up to 3795 conditions per place. [2024-06-27 16:46:34,456 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 102 selfloop transitions, 106 changer transitions 22/243 dead transitions. [2024-06-27 16:46:34,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 243 transitions, 2756 flow [2024-06-27 16:46:34,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:46:34,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:46:34,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 256 transitions. [2024-06-27 16:46:34,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2024-06-27 16:46:34,458 INFO L175 Difference]: Start difference. First operand has 85 places, 140 transitions, 1595 flow. Second operand 8 states and 256 transitions. [2024-06-27 16:46:34,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 243 transitions, 2756 flow [2024-06-27 16:46:34,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 243 transitions, 2715 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 16:46:34,499 INFO L231 Difference]: Finished difference. Result has 92 places, 149 transitions, 1949 flow [2024-06-27 16:46:34,499 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1557, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1949, PETRI_PLACES=92, PETRI_TRANSITIONS=149} [2024-06-27 16:46:34,500 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 39 predicate places. [2024-06-27 16:46:34,500 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 149 transitions, 1949 flow [2024-06-27 16:46:34,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-06-27 16:46:34,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:34,500 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:34,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 16:46:34,501 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:34,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:34,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1378666039, now seen corresponding path program 10 times [2024-06-27 16:46:34,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:34,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600632953] [2024-06-27 16:46:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:34,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:34,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:34,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600632953] [2024-06-27 16:46:34,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600632953] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:34,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:34,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:46:34,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973050654] [2024-06-27 16:46:34,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:34,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 16:46:34,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:34,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 16:46:34,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-06-27 16:46:34,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:34,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 149 transitions, 1949 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-06-27 16:46:34,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:34,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:34,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:35,286 INFO L124 PetriNetUnfolderBase]: 6761/11208 cut-off events. [2024-06-27 16:46:35,287 INFO L125 PetriNetUnfolderBase]: For 50806/51136 co-relation queries the response was YES. [2024-06-27 16:46:35,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44290 conditions, 11208 events. 6761/11208 cut-off events. For 50806/51136 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 78331 event pairs, 1521 based on Foata normal form. 174/11202 useless extension candidates. Maximal degree in co-relation 15457. Up to 3855 conditions per place. [2024-06-27 16:46:35,343 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 84 selfloop transitions, 138 changer transitions 13/248 dead transitions. [2024-06-27 16:46:35,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 248 transitions, 3086 flow [2024-06-27 16:46:35,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:46:35,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:46:35,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2024-06-27 16:46:35,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6694444444444444 [2024-06-27 16:46:35,344 INFO L175 Difference]: Start difference. First operand has 92 places, 149 transitions, 1949 flow. Second operand 8 states and 241 transitions. [2024-06-27 16:46:35,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 248 transitions, 3086 flow [2024-06-27 16:46:35,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 248 transitions, 3031 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 16:46:35,412 INFO L231 Difference]: Finished difference. Result has 98 places, 175 transitions, 2529 flow [2024-06-27 16:46:35,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1909, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2529, PETRI_PLACES=98, PETRI_TRANSITIONS=175} [2024-06-27 16:46:35,414 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 45 predicate places. [2024-06-27 16:46:35,415 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 175 transitions, 2529 flow [2024-06-27 16:46:35,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-06-27 16:46:35,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:35,416 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:35,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 16:46:35,417 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:35,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:35,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1266094021, now seen corresponding path program 11 times [2024-06-27 16:46:35,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:35,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95089062] [2024-06-27 16:46:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:35,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:35,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:35,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:35,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95089062] [2024-06-27 16:46:35,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95089062] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:35,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:35,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-27 16:46:35,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747291133] [2024-06-27 16:46:35,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:35,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 16:46:35,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:35,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 16:46:35,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-06-27 16:46:35,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:35,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 175 transitions, 2529 flow. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-06-27 16:46:35,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:35,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:35,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:36,548 INFO L124 PetriNetUnfolderBase]: 6460/10759 cut-off events. [2024-06-27 16:46:36,548 INFO L125 PetriNetUnfolderBase]: For 63871/64351 co-relation queries the response was YES. [2024-06-27 16:46:36,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44405 conditions, 10759 events. 6460/10759 cut-off events. For 63871/64351 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 75486 event pairs, 1458 based on Foata normal form. 314/10913 useless extension candidates. Maximal degree in co-relation 15689. Up to 3655 conditions per place. [2024-06-27 16:46:36,606 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 105 selfloop transitions, 144 changer transitions 18/280 dead transitions. [2024-06-27 16:46:36,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 280 transitions, 3678 flow [2024-06-27 16:46:36,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-27 16:46:36,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-27 16:46:36,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 333 transitions. [2024-06-27 16:46:36,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2024-06-27 16:46:36,608 INFO L175 Difference]: Start difference. First operand has 98 places, 175 transitions, 2529 flow. Second operand 12 states and 333 transitions. [2024-06-27 16:46:36,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 280 transitions, 3678 flow [2024-06-27 16:46:36,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 280 transitions, 3443 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-06-27 16:46:36,688 INFO L231 Difference]: Finished difference. Result has 106 places, 181 transitions, 2700 flow [2024-06-27 16:46:36,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2328, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2700, PETRI_PLACES=106, PETRI_TRANSITIONS=181} [2024-06-27 16:46:36,688 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 53 predicate places. [2024-06-27 16:46:36,688 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 181 transitions, 2700 flow [2024-06-27 16:46:36,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-06-27 16:46:36,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:36,689 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:36,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 16:46:36,689 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:36,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:36,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1130646983, now seen corresponding path program 12 times [2024-06-27 16:46:36,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:36,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283696652] [2024-06-27 16:46:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:36,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:36,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:36,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283696652] [2024-06-27 16:46:36,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283696652] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:36,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:36,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-27 16:46:36,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967372306] [2024-06-27 16:46:36,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:36,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 16:46:36,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:36,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 16:46:36,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-06-27 16:46:36,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:36,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 181 transitions, 2700 flow. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-06-27 16:46:36,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:36,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:36,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:37,855 INFO L124 PetriNetUnfolderBase]: 6554/10931 cut-off events. [2024-06-27 16:46:37,856 INFO L125 PetriNetUnfolderBase]: For 73942/74346 co-relation queries the response was YES. [2024-06-27 16:46:37,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46566 conditions, 10931 events. 6554/10931 cut-off events. For 73942/74346 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 76992 event pairs, 1578 based on Foata normal form. 292/11049 useless extension candidates. Maximal degree in co-relation 16632. Up to 3714 conditions per place. [2024-06-27 16:46:37,915 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 89 selfloop transitions, 120 changer transitions 68/290 dead transitions. [2024-06-27 16:46:37,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 290 transitions, 3915 flow [2024-06-27 16:46:37,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-27 16:46:37,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-27 16:46:37,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 339 transitions. [2024-06-27 16:46:37,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6277777777777778 [2024-06-27 16:46:37,916 INFO L175 Difference]: Start difference. First operand has 106 places, 181 transitions, 2700 flow. Second operand 12 states and 339 transitions. [2024-06-27 16:46:37,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 290 transitions, 3915 flow [2024-06-27 16:46:38,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 290 transitions, 3787 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-06-27 16:46:38,018 INFO L231 Difference]: Finished difference. Result has 116 places, 157 transitions, 2366 flow [2024-06-27 16:46:38,018 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2586, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2366, PETRI_PLACES=116, PETRI_TRANSITIONS=157} [2024-06-27 16:46:38,019 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 63 predicate places. [2024-06-27 16:46:38,019 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 157 transitions, 2366 flow [2024-06-27 16:46:38,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-06-27 16:46:38,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:38,019 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:38,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-27 16:46:38,020 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:38,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:38,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1714267051, now seen corresponding path program 13 times [2024-06-27 16:46:38,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:38,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028183703] [2024-06-27 16:46:38,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:38,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:38,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:38,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028183703] [2024-06-27 16:46:38,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028183703] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:38,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:38,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-27 16:46:38,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721351813] [2024-06-27 16:46:38,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:38,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 16:46:38,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:38,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 16:46:38,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-06-27 16:46:38,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:38,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 157 transitions, 2366 flow. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-06-27 16:46:38,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:38,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:38,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:39,083 INFO L124 PetriNetUnfolderBase]: 5863/9830 cut-off events. [2024-06-27 16:46:39,084 INFO L125 PetriNetUnfolderBase]: For 76795/77237 co-relation queries the response was YES. [2024-06-27 16:46:39,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43148 conditions, 9830 events. 5863/9830 cut-off events. For 76795/77237 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 68379 event pairs, 1450 based on Foata normal form. 310/10004 useless extension candidates. Maximal degree in co-relation 16735. Up to 3472 conditions per place. [2024-06-27 16:46:39,138 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 97 selfloop transitions, 120 changer transitions 31/261 dead transitions. [2024-06-27 16:46:39,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 261 transitions, 3493 flow [2024-06-27 16:46:39,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-27 16:46:39,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-27 16:46:39,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 334 transitions. [2024-06-27 16:46:39,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6185185185185185 [2024-06-27 16:46:39,145 INFO L175 Difference]: Start difference. First operand has 116 places, 157 transitions, 2366 flow. Second operand 12 states and 334 transitions. [2024-06-27 16:46:39,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 261 transitions, 3493 flow [2024-06-27 16:46:39,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 261 transitions, 3181 flow, removed 18 selfloop flow, removed 9 redundant places. [2024-06-27 16:46:39,247 INFO L231 Difference]: Finished difference. Result has 117 places, 156 transitions, 2316 flow [2024-06-27 16:46:39,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2094, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2316, PETRI_PLACES=117, PETRI_TRANSITIONS=156} [2024-06-27 16:46:39,248 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 64 predicate places. [2024-06-27 16:46:39,248 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 156 transitions, 2316 flow [2024-06-27 16:46:39,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-06-27 16:46:39,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:39,249 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:39,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-27 16:46:39,249 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:39,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:39,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1823855449, now seen corresponding path program 14 times [2024-06-27 16:46:39,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:39,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410220627] [2024-06-27 16:46:39,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:39,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:39,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:39,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410220627] [2024-06-27 16:46:39,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410220627] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:39,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:39,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-27 16:46:39,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406976321] [2024-06-27 16:46:39,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:39,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 16:46:39,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:39,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 16:46:39,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-27 16:46:39,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:39,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 156 transitions, 2316 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:46:39,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:39,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:39,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:40,035 INFO L124 PetriNetUnfolderBase]: 4241/7148 cut-off events. [2024-06-27 16:46:40,035 INFO L125 PetriNetUnfolderBase]: For 51150/51582 co-relation queries the response was YES. [2024-06-27 16:46:40,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30142 conditions, 7148 events. 4241/7148 cut-off events. For 51150/51582 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 47076 event pairs, 1253 based on Foata normal form. 272/7392 useless extension candidates. Maximal degree in co-relation 9954. Up to 2766 conditions per place. [2024-06-27 16:46:40,072 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 79 selfloop transitions, 106 changer transitions 11/207 dead transitions. [2024-06-27 16:46:40,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 207 transitions, 2853 flow [2024-06-27 16:46:40,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 16:46:40,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 16:46:40,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 245 transitions. [2024-06-27 16:46:40,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2024-06-27 16:46:40,074 INFO L175 Difference]: Start difference. First operand has 117 places, 156 transitions, 2316 flow. Second operand 9 states and 245 transitions. [2024-06-27 16:46:40,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 207 transitions, 2853 flow [2024-06-27 16:46:40,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 207 transitions, 2777 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-06-27 16:46:40,123 INFO L231 Difference]: Finished difference. Result has 124 places, 140 transitions, 2147 flow [2024-06-27 16:46:40,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2070, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2147, PETRI_PLACES=124, PETRI_TRANSITIONS=140} [2024-06-27 16:46:40,124 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 71 predicate places. [2024-06-27 16:46:40,124 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 140 transitions, 2147 flow [2024-06-27 16:46:40,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:46:40,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:40,124 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:40,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-27 16:46:40,124 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:40,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:40,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1162744663, now seen corresponding path program 15 times [2024-06-27 16:46:40,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:40,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796776090] [2024-06-27 16:46:40,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:40,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:40,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:40,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:40,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796776090] [2024-06-27 16:46:40,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796776090] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:40,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:40,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:46:40,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79929824] [2024-06-27 16:46:40,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:40,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 16:46:40,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:40,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 16:46:40,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-06-27 16:46:40,206 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:40,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 140 transitions, 2147 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-06-27 16:46:40,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:40,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:40,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:40,501 INFO L124 PetriNetUnfolderBase]: 1234/2244 cut-off events. [2024-06-27 16:46:40,501 INFO L125 PetriNetUnfolderBase]: For 15955/15987 co-relation queries the response was YES. [2024-06-27 16:46:40,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10152 conditions, 2244 events. 1234/2244 cut-off events. For 15955/15987 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 12144 event pairs, 270 based on Foata normal form. 184/2428 useless extension candidates. Maximal degree in co-relation 6713. Up to 483 conditions per place. [2024-06-27 16:46:40,512 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 54 selfloop transitions, 24 changer transitions 42/131 dead transitions. [2024-06-27 16:46:40,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 131 transitions, 1627 flow [2024-06-27 16:46:40,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:46:40,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:46:40,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 213 transitions. [2024-06-27 16:46:40,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-06-27 16:46:40,514 INFO L175 Difference]: Start difference. First operand has 124 places, 140 transitions, 2147 flow. Second operand 8 states and 213 transitions. [2024-06-27 16:46:40,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 131 transitions, 1627 flow [2024-06-27 16:46:40,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 131 transitions, 1408 flow, removed 29 selfloop flow, removed 18 redundant places. [2024-06-27 16:46:40,526 INFO L231 Difference]: Finished difference. Result has 113 places, 60 transitions, 586 flow [2024-06-27 16:46:40,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=586, PETRI_PLACES=113, PETRI_TRANSITIONS=60} [2024-06-27 16:46:40,527 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 60 predicate places. [2024-06-27 16:46:40,527 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 60 transitions, 586 flow [2024-06-27 16:46:40,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-06-27 16:46:40,527 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:40,527 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:40,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-27 16:46:40,528 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:40,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:40,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1185250237, now seen corresponding path program 16 times [2024-06-27 16:46:40,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:40,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846019363] [2024-06-27 16:46:40,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:40,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:40,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:40,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:40,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846019363] [2024-06-27 16:46:40,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846019363] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:40,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:40,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-27 16:46:40,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171487722] [2024-06-27 16:46:40,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:40,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 16:46:40,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:40,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 16:46:40,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-06-27 16:46:40,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:40,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 60 transitions, 586 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:46:40,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:40,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:40,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:40,749 INFO L124 PetriNetUnfolderBase]: 433/805 cut-off events. [2024-06-27 16:46:40,749 INFO L125 PetriNetUnfolderBase]: For 3724/3736 co-relation queries the response was YES. [2024-06-27 16:46:40,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2994 conditions, 805 events. 433/805 cut-off events. For 3724/3736 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3306 event pairs, 68 based on Foata normal form. 40/845 useless extension candidates. Maximal degree in co-relation 1966. Up to 193 conditions per place. [2024-06-27 16:46:40,753 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 46 selfloop transitions, 16 changer transitions 14/87 dead transitions. [2024-06-27 16:46:40,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 87 transitions, 788 flow [2024-06-27 16:46:40,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:46:40,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:46:40,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 186 transitions. [2024-06-27 16:46:40,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2024-06-27 16:46:40,756 INFO L175 Difference]: Start difference. First operand has 113 places, 60 transitions, 586 flow. Second operand 8 states and 186 transitions. [2024-06-27 16:46:40,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 87 transitions, 788 flow [2024-06-27 16:46:40,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 87 transitions, 563 flow, removed 20 selfloop flow, removed 28 redundant places. [2024-06-27 16:46:40,760 INFO L231 Difference]: Finished difference. Result has 83 places, 48 transitions, 270 flow [2024-06-27 16:46:40,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=270, PETRI_PLACES=83, PETRI_TRANSITIONS=48} [2024-06-27 16:46:40,761 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 30 predicate places. [2024-06-27 16:46:40,761 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 48 transitions, 270 flow [2024-06-27 16:46:40,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:46:40,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:46:40,761 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, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:46:40,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-27 16:46:40,761 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:46:40,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:46:40,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1905865297, now seen corresponding path program 17 times [2024-06-27 16:46:40,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:46:40,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077444979] [2024-06-27 16:46:40,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:46:40,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:46:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:46:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:46:40,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:46:40,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077444979] [2024-06-27 16:46:40,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077444979] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:46:40,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:46:40,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-27 16:46:40,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213027389] [2024-06-27 16:46:40,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:46:40,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 16:46:40,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:46:40,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 16:46:40,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-06-27 16:46:40,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-06-27 16:46:40,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 48 transitions, 270 flow. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-06-27 16:46:40,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:46:40,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-06-27 16:46:40,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:46:40,932 INFO L124 PetriNetUnfolderBase]: 68/169 cut-off events. [2024-06-27 16:46:40,932 INFO L125 PetriNetUnfolderBase]: For 488/488 co-relation queries the response was YES. [2024-06-27 16:46:40,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 169 events. 68/169 cut-off events. For 488/488 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 491 event pairs, 8 based on Foata normal form. 16/185 useless extension candidates. Maximal degree in co-relation 566. Up to 40 conditions per place. [2024-06-27 16:46:40,933 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2024-06-27 16:46:40,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 50 transitions, 333 flow [2024-06-27 16:46:40,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 16:46:40,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 16:46:40,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 169 transitions. [2024-06-27 16:46:40,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41728395061728396 [2024-06-27 16:46:40,934 INFO L175 Difference]: Start difference. First operand has 83 places, 48 transitions, 270 flow. Second operand 9 states and 169 transitions. [2024-06-27 16:46:40,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 50 transitions, 333 flow [2024-06-27 16:46:40,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 253 flow, removed 1 selfloop flow, removed 22 redundant places. [2024-06-27 16:46:40,936 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-06-27 16:46:40,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-06-27 16:46:40,937 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places. [2024-06-27 16:46:40,937 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-06-27 16:46:40,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-06-27 16:46:40,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-06-27 16:46:40,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-06-27 16:46:40,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-06-27 16:46:40,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-06-27 16:46:40,952 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-06-27 16:46:40,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-27 16:46:40,953 INFO L445 BasicCegarLoop]: Path program histogram: [17] [2024-06-27 16:46:40,956 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 16:46:40,956 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 16:46:40,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 04:46:40 BasicIcfg [2024-06-27 16:46:40,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 16:46:40,961 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-06-27 16:46:40,961 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-06-27 16:46:40,961 INFO L274 PluginConnector]: Witness Printer initialized [2024-06-27 16:46:40,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:46:22" (3/4) ... [2024-06-27 16:46:40,963 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-06-27 16:46:40,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-06-27 16:46:40,965 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-06-27 16:46:40,966 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-06-27 16:46:40,966 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2024-06-27 16:46:40,972 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 85 nodes and edges [2024-06-27 16:46:40,972 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-06-27 16:46:40,972 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-06-27 16:46:40,972 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-06-27 16:46:41,032 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-06-27 16:46:41,032 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-06-27 16:46:41,033 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-06-27 16:46:41,033 INFO L158 Benchmark]: Toolchain (without parser) took 19221.60ms. Allocated memory was 121.6MB in the beginning and 5.5GB in the end (delta: 5.4GB). Free memory was 66.1MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2024-06-27 16:46:41,033 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-27 16:46:41,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.98ms. Allocated memory is still 121.6MB. Free memory was 66.1MB in the beginning and 53.4MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-06-27 16:46:41,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.56ms. Allocated memory is still 121.6MB. Free memory was 53.4MB in the beginning and 51.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 16:46:41,034 INFO L158 Benchmark]: Boogie Preprocessor took 48.19ms. Allocated memory is still 121.6MB. Free memory was 51.4MB in the beginning and 94.2MB in the end (delta: -42.8MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-06-27 16:46:41,035 INFO L158 Benchmark]: RCFGBuilder took 577.42ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 94.1MB in the beginning and 104.0MB in the end (delta: -9.9MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2024-06-27 16:46:41,035 INFO L158 Benchmark]: TraceAbstraction took 18282.34ms. Allocated memory was 172.0MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 103.0MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2024-06-27 16:46:41,035 INFO L158 Benchmark]: Witness Printer took 72.06ms. Allocated memory is still 5.5GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-06-27 16:46:41,036 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.98ms. Allocated memory is still 121.6MB. Free memory was 66.1MB in the beginning and 53.4MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.56ms. Allocated memory is still 121.6MB. Free memory was 53.4MB in the beginning and 51.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.19ms. Allocated memory is still 121.6MB. Free memory was 51.4MB in the beginning and 94.2MB in the end (delta: -42.8MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * RCFGBuilder took 577.42ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 94.1MB in the beginning and 104.0MB in the end (delta: -9.9MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. * TraceAbstraction took 18282.34ms. Allocated memory was 172.0MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 103.0MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Witness Printer took 72.06ms. Allocated memory is still 5.5GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 146]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.2s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 17, EmptinessCheckTime: 0.0s, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1135 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1134 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 310 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4754 IncrementalHoareTripleChecker+Invalid, 5064 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 310 mSolverCounterUnsat, 2 mSDtfsCounter, 4754 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2700occurred in iteration=11, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 680 NumberOfCodeBlocks, 680 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 663 ConstructedInterpolants, 0 QuantifiedInterpolants, 2201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 16:46:41,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE