./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.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 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 14:42:06,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 14:42:06,502 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 14:42:06,508 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 14:42:06,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 14:42:06,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 14:42:06,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 14:42:06,527 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 14:42:06,528 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 14:42:06,528 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 14:42:06,528 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 14:42:06,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 14:42:06,529 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 14:42:06,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 14:42:06,532 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 14:42:06,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 14:42:06,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 14:42:06,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 14:42:06,535 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 14:42:06,536 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 14:42:06,536 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 14:42:06,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 14:42:06,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 14:42:06,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 14:42:06,537 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 14:42:06,538 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 14:42:06,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 14:42:06,538 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 14:42:06,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 14:42:06,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 14:42:06,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 14:42:06,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 14:42:06,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:42:06,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 14:42:06,541 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 14:42:06,541 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 14:42:06,541 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 14:42:06,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 14:42:06,542 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 14:42:06,542 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 14:42:06,542 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 14:42:06,543 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 14:42:06,543 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 [2024-10-14 14:42:06,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 14:42:06,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 14:42:06,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 14:42:06,846 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 14:42:06,847 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 14:42:06,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2024-10-14 14:42:08,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 14:42:08,401 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 14:42:08,402 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2024-10-14 14:42:08,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ab1208c0/0305a91f901949aabd04f36de4173f97/FLAG01ec94c00 [2024-10-14 14:42:08,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ab1208c0/0305a91f901949aabd04f36de4173f97 [2024-10-14 14:42:08,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 14:42:08,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 14:42:08,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 14:42:08,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 14:42:08,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 14:42:08,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c7d3c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08, skipping insertion in model container [2024-10-14 14:42:08,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,457 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 14:42:08,654 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2637,2650] [2024-10-14 14:42:08,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:42:08,673 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 14:42:08,694 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2637,2650] [2024-10-14 14:42:08,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:42:08,720 INFO L204 MainTranslator]: Completed translation [2024-10-14 14:42:08,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08 WrapperNode [2024-10-14 14:42:08,721 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 14:42:08,722 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 14:42:08,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 14:42:08,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 14:42:08,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,740 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,764 INFO L138 Inliner]: procedures = 24, calls = 31, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 185 [2024-10-14 14:42:08,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 14:42:08,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 14:42:08,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 14:42:08,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 14:42:08,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,782 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,800 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 7 writes are split as follows [0, 7]. [2024-10-14 14:42:08,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,815 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 14:42:08,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 14:42:08,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 14:42:08,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 14:42:08,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (1/1) ... [2024-10-14 14:42:08,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:42:08,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:42:08,861 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) [2024-10-14 14:42:08,863 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 [2024-10-14 14:42:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 14:42:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 14:42:08,907 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 14:42:08,907 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 14:42:08,907 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 14:42:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-14 14:42:08,908 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-14 14:42:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 14:42:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 14:42:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 14:42:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 14:42:08,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 14:42:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 14:42:08,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 14:42:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 14:42:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 14:42:08,910 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 14:42:09,008 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 14:42:09,010 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 14:42:09,426 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 14:42:09,426 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 14:42:09,690 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 14:42:09,690 INFO L314 CfgBuilder]: Removed 7 assume(true) statements. [2024-10-14 14:42:09,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:42:09 BoogieIcfgContainer [2024-10-14 14:42:09,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 14:42:09,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 14:42:09,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 14:42:09,698 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 14:42:09,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:42:08" (1/3) ... [2024-10-14 14:42:09,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cca3b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:42:09, skipping insertion in model container [2024-10-14 14:42:09,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:42:08" (2/3) ... [2024-10-14 14:42:09,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cca3b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:42:09, skipping insertion in model container [2024-10-14 14:42:09,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:42:09" (3/3) ... [2024-10-14 14:42:09,704 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2024-10-14 14:42:09,720 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 14:42:09,721 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 14:42:09,721 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 14:42:09,775 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-14 14:42:09,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 87 flow [2024-10-14 14:42:09,860 INFO L124 PetriNetUnfolderBase]: 7/30 cut-off events. [2024-10-14 14:42:09,860 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 14:42:09,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 7/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2024-10-14 14:42:09,865 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 33 transitions, 87 flow [2024-10-14 14:42:09,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 32 places, 29 transitions, 76 flow [2024-10-14 14:42:09,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:42:09,891 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@744490f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:42:09,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-14 14:42:09,907 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 14:42:09,909 INFO L124 PetriNetUnfolderBase]: 7/28 cut-off events. [2024-10-14 14:42:09,910 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 14:42:09,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:42:09,911 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:42:09,911 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:42:09,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:42:09,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1264433614, now seen corresponding path program 1 times [2024-10-14 14:42:09,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:42:09,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720896200] [2024-10-14 14:42:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:09,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:42:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:10,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:42:10,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:42:10,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720896200] [2024-10-14 14:42:10,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720896200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:42:10,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:42:10,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 14:42:10,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820509025] [2024-10-14 14:42:10,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:42:10,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 14:42:10,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:42:10,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 14:42:10,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 14:42:10,623 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-10-14 14:42:10,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:10,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:42:10,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-10-14 14:42:10,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:42:10,849 INFO L124 PetriNetUnfolderBase]: 405/602 cut-off events. [2024-10-14 14:42:10,849 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-10-14 14:42:10,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 602 events. 405/602 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1664 event pairs, 248 based on Foata normal form. 1/445 useless extension candidates. Maximal degree in co-relation 534. Up to 301 conditions per place. [2024-10-14 14:42:10,857 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 24 selfloop transitions, 8 changer transitions 25/58 dead transitions. [2024-10-14 14:42:10,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 58 transitions, 266 flow [2024-10-14 14:42:10,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 14:42:10,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 14:42:10,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 81 transitions. [2024-10-14 14:42:10,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4909090909090909 [2024-10-14 14:42:10,872 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 76 flow. Second operand 5 states and 81 transitions. [2024-10-14 14:42:10,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 58 transitions, 266 flow [2024-10-14 14:42:10,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 58 transitions, 242 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-14 14:42:10,883 INFO L231 Difference]: Finished difference. Result has 33 places, 33 transitions, 116 flow [2024-10-14 14:42:10,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=33, PETRI_TRANSITIONS=33} [2024-10-14 14:42:10,889 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2024-10-14 14:42:10,891 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 33 transitions, 116 flow [2024-10-14 14:42:10,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:10,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:42:10,893 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:42:10,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 14:42:10,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:42:10,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:42:10,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1953847253, now seen corresponding path program 1 times [2024-10-14 14:42:10,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:42:10,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863108118] [2024-10-14 14:42:10,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:10,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:42:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:11,206 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 14:42:11,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:42:11,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863108118] [2024-10-14 14:42:11,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863108118] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:42:11,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567589648] [2024-10-14 14:42:11,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:11,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:11,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:42:11,212 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 14:42:11,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 14:42:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:11,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 14:42:11,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:42:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 14:42:11,464 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 14:42:11,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 14:42:11,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567589648] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 14:42:11,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-14 14:42:11,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2024-10-14 14:42:11,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467764594] [2024-10-14 14:42:11,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:42:11,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 14:42:11,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:42:11,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 14:42:11,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-14 14:42:11,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-10-14 14:42:11,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 33 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:11,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:42:11,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-10-14 14:42:11,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:42:11,659 INFO L124 PetriNetUnfolderBase]: 262/390 cut-off events. [2024-10-14 14:42:11,659 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 14:42:11,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 390 events. 262/390 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1023 event pairs, 124 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 814. Up to 303 conditions per place. [2024-10-14 14:42:11,662 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 40 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2024-10-14 14:42:11,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 45 transitions, 230 flow [2024-10-14 14:42:11,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 14:42:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 14:42:11,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 62 transitions. [2024-10-14 14:42:11,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37575757575757573 [2024-10-14 14:42:11,664 INFO L175 Difference]: Start difference. First operand has 33 places, 33 transitions, 116 flow. Second operand 5 states and 62 transitions. [2024-10-14 14:42:11,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 45 transitions, 230 flow [2024-10-14 14:42:11,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 45 transitions, 212 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-10-14 14:42:11,666 INFO L231 Difference]: Finished difference. Result has 33 places, 34 transitions, 114 flow [2024-10-14 14:42:11,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=114, PETRI_PLACES=33, PETRI_TRANSITIONS=34} [2024-10-14 14:42:11,667 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2024-10-14 14:42:11,668 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 34 transitions, 114 flow [2024-10-14 14:42:11,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:11,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:42:11,668 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:42:11,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 14:42:11,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:11,870 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:42:11,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:42:11,871 INFO L85 PathProgramCache]: Analyzing trace with hash -858266857, now seen corresponding path program 1 times [2024-10-14 14:42:11,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:42:11,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289991392] [2024-10-14 14:42:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:11,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:42:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:12,110 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 14:42:12,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:42:12,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289991392] [2024-10-14 14:42:12,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289991392] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:42:12,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653196440] [2024-10-14 14:42:12,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:12,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:12,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:42:12,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 14:42:12,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 14:42:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:12,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 14:42:12,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:42:12,358 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 14:42:12,358 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 14:42:12,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 14:42:12,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653196440] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 14:42:12,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 14:42:12,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2024-10-14 14:42:12,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075304096] [2024-10-14 14:42:12,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 14:42:12,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 14:42:12,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:42:12,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 14:42:12,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-14 14:42:12,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-10-14 14:42:12,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 34 transitions, 114 flow. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:12,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:42:12,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-10-14 14:42:12,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:42:12,855 INFO L124 PetriNetUnfolderBase]: 443/657 cut-off events. [2024-10-14 14:42:12,855 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-10-14 14:42:12,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1577 conditions, 657 events. 443/657 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2084 event pairs, 169 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 1531. Up to 377 conditions per place. [2024-10-14 14:42:12,860 INFO L140 encePairwiseOnDemand]: 18/33 looper letters, 54 selfloop transitions, 14 changer transitions 0/69 dead transitions. [2024-10-14 14:42:12,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 69 transitions, 358 flow [2024-10-14 14:42:12,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 14:42:12,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 14:42:12,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2024-10-14 14:42:12,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3400673400673401 [2024-10-14 14:42:12,862 INFO L175 Difference]: Start difference. First operand has 33 places, 34 transitions, 114 flow. Second operand 9 states and 101 transitions. [2024-10-14 14:42:12,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 69 transitions, 358 flow [2024-10-14 14:42:12,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 69 transitions, 338 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-10-14 14:42:12,865 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 160 flow [2024-10-14 14:42:12,865 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=160, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2024-10-14 14:42:12,865 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 10 predicate places. [2024-10-14 14:42:12,866 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 160 flow [2024-10-14 14:42:12,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:12,866 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:42:12,866 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:42:12,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 14:42:13,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-14 14:42:13,071 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:42:13,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:42:13,072 INFO L85 PathProgramCache]: Analyzing trace with hash 507961245, now seen corresponding path program 2 times [2024-10-14 14:42:13,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:42:13,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441337821] [2024-10-14 14:42:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:13,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:42:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:13,314 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 14:42:13,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:42:13,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441337821] [2024-10-14 14:42:13,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441337821] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:42:13,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987478566] [2024-10-14 14:42:13,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 14:42:13,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:13,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:42:13,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 14:42:13,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 14:42:13,422 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 14:42:13,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 14:42:13,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 14:42:13,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:42:13,490 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 14:42:13,491 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 14:42:13,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987478566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:42:13,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 14:42:13,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-10-14 14:42:13,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12393442] [2024-10-14 14:42:13,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:42:13,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:42:13,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:42:13,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:42:13,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 14:42:13,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-10-14 14:42:13,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:13,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:42:13,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-10-14 14:42:13,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:42:13,780 INFO L124 PetriNetUnfolderBase]: 693/1027 cut-off events. [2024-10-14 14:42:13,780 INFO L125 PetriNetUnfolderBase]: For 609/609 co-relation queries the response was YES. [2024-10-14 14:42:13,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2981 conditions, 1027 events. 693/1027 cut-off events. For 609/609 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3654 event pairs, 291 based on Foata normal form. 1/813 useless extension candidates. Maximal degree in co-relation 2925. Up to 642 conditions per place. [2024-10-14 14:42:13,787 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 65 selfloop transitions, 7 changer transitions 9/82 dead transitions. [2024-10-14 14:42:13,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 82 transitions, 482 flow [2024-10-14 14:42:13,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 14:42:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 14:42:13,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 89 transitions. [2024-10-14 14:42:13,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4494949494949495 [2024-10-14 14:42:13,790 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 160 flow. Second operand 6 states and 89 transitions. [2024-10-14 14:42:13,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 82 transitions, 482 flow [2024-10-14 14:42:13,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 82 transitions, 453 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-14 14:42:13,795 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 192 flow [2024-10-14 14:42:13,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2024-10-14 14:42:13,797 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 15 predicate places. [2024-10-14 14:42:13,797 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 192 flow [2024-10-14 14:42:13,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:13,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:42:13,797 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:42:13,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 14:42:14,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:14,002 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:42:14,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:42:14,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1584221265, now seen corresponding path program 3 times [2024-10-14 14:42:14,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:42:14,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957813061] [2024-10-14 14:42:14,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:14,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:42:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:14,222 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 14:42:14,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:42:14,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957813061] [2024-10-14 14:42:14,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957813061] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:42:14,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606687313] [2024-10-14 14:42:14,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 14:42:14,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:14,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:42:14,228 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 14:42:14,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 14:42:14,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-10-14 14:42:14,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 14:42:14,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 14:42:14,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:42:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 14:42:14,396 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 14:42:14,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606687313] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:42:14,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 14:42:14,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-10-14 14:42:14,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169729416] [2024-10-14 14:42:14,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:42:14,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:42:14,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:42:14,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:42:14,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-14 14:42:14,398 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-10-14 14:42:14,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:14,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:42:14,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-10-14 14:42:14,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:42:14,683 INFO L124 PetriNetUnfolderBase]: 748/1101 cut-off events. [2024-10-14 14:42:14,684 INFO L125 PetriNetUnfolderBase]: For 1274/1274 co-relation queries the response was YES. [2024-10-14 14:42:14,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3676 conditions, 1101 events. 748/1101 cut-off events. For 1274/1274 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3913 event pairs, 366 based on Foata normal form. 1/930 useless extension candidates. Maximal degree in co-relation 3648. Up to 827 conditions per place. [2024-10-14 14:42:14,691 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 61 selfloop transitions, 11 changer transitions 9/82 dead transitions. [2024-10-14 14:42:14,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 82 transitions, 520 flow [2024-10-14 14:42:14,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 14:42:14,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 14:42:14,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 89 transitions. [2024-10-14 14:42:14,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4494949494949495 [2024-10-14 14:42:14,694 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 192 flow. Second operand 6 states and 89 transitions. [2024-10-14 14:42:14,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 82 transitions, 520 flow [2024-10-14 14:42:14,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 82 transitions, 494 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-10-14 14:42:14,703 INFO L231 Difference]: Finished difference. Result has 53 places, 48 transitions, 263 flow [2024-10-14 14:42:14,704 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=263, PETRI_PLACES=53, PETRI_TRANSITIONS=48} [2024-10-14 14:42:14,705 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 21 predicate places. [2024-10-14 14:42:14,706 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 48 transitions, 263 flow [2024-10-14 14:42:14,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:14,707 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:42:14,707 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:42:14,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 14:42:14,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:14,908 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:42:14,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:42:14,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1972802087, now seen corresponding path program 4 times [2024-10-14 14:42:14,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:42:14,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479912901] [2024-10-14 14:42:14,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:14,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:42:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 14:42:15,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:42:15,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479912901] [2024-10-14 14:42:15,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479912901] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:42:15,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131067783] [2024-10-14 14:42:15,078 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 14:42:15,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:15,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:42:15,080 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 14:42:15,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 14:42:15,178 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 14:42:15,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 14:42:15,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 14:42:15,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:42:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 14:42:15,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 14:42:15,342 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 14:42:15,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131067783] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 14:42:15,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 14:42:15,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-10-14 14:42:15,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062456104] [2024-10-14 14:42:15,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 14:42:15,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 14:42:15,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:42:15,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 14:42:15,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-14 14:42:15,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-10-14 14:42:15,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 48 transitions, 263 flow. Second operand has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 14 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:15,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:42:15,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-10-14 14:42:15,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:42:16,038 INFO L124 PetriNetUnfolderBase]: 750/1114 cut-off events. [2024-10-14 14:42:16,039 INFO L125 PetriNetUnfolderBase]: For 2237/2237 co-relation queries the response was YES. [2024-10-14 14:42:16,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4076 conditions, 1114 events. 750/1114 cut-off events. For 2237/2237 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4214 event pairs, 132 based on Foata normal form. 10/950 useless extension candidates. Maximal degree in co-relation 4041. Up to 332 conditions per place. [2024-10-14 14:42:16,048 INFO L140 encePairwiseOnDemand]: 16/33 looper letters, 89 selfloop transitions, 61 changer transitions 0/151 dead transitions. [2024-10-14 14:42:16,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 151 transitions, 1102 flow [2024-10-14 14:42:16,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 14:42:16,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-14 14:42:16,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 195 transitions. [2024-10-14 14:42:16,051 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31100478468899523 [2024-10-14 14:42:16,051 INFO L175 Difference]: Start difference. First operand has 53 places, 48 transitions, 263 flow. Second operand 19 states and 195 transitions. [2024-10-14 14:42:16,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 151 transitions, 1102 flow [2024-10-14 14:42:16,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 151 transitions, 1016 flow, removed 15 selfloop flow, removed 3 redundant places. [2024-10-14 14:42:16,062 INFO L231 Difference]: Finished difference. Result has 73 places, 87 transitions, 691 flow [2024-10-14 14:42:16,063 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=691, PETRI_PLACES=73, PETRI_TRANSITIONS=87} [2024-10-14 14:42:16,063 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 41 predicate places. [2024-10-14 14:42:16,063 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 87 transitions, 691 flow [2024-10-14 14:42:16,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.357142857142857) internal successors, (103), 14 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:16,064 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:42:16,064 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:42:16,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 14:42:16,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:16,265 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:42:16,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:42:16,265 INFO L85 PathProgramCache]: Analyzing trace with hash -2117743893, now seen corresponding path program 5 times [2024-10-14 14:42:16,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:42:16,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918149294] [2024-10-14 14:42:16,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:16,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:42:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:16,469 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 14:42:16,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:42:16,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918149294] [2024-10-14 14:42:16,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918149294] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:42:16,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606666942] [2024-10-14 14:42:16,471 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 14:42:16,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:16,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:42:16,473 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 14:42:16,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 14:42:16,583 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 14:42:16,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 14:42:16,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 14:42:16,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:42:16,659 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 14:42:16,659 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 14:42:16,724 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 14:42:16,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606666942] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 14:42:16,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 14:42:16,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-10-14 14:42:16,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496473953] [2024-10-14 14:42:16,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 14:42:16,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 14:42:16,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:42:16,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 14:42:16,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-10-14 14:42:16,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-10-14 14:42:16,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 87 transitions, 691 flow. Second operand has 15 states, 15 states have (on average 7.466666666666667) internal successors, (112), 15 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:16,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:42:16,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-10-14 14:42:16,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:42:17,254 INFO L124 PetriNetUnfolderBase]: 737/1088 cut-off events. [2024-10-14 14:42:17,255 INFO L125 PetriNetUnfolderBase]: For 3754/3754 co-relation queries the response was YES. [2024-10-14 14:42:17,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4696 conditions, 1088 events. 737/1088 cut-off events. For 3754/3754 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4056 event pairs, 164 based on Foata normal form. 9/997 useless extension candidates. Maximal degree in co-relation 4625. Up to 410 conditions per place. [2024-10-14 14:42:17,264 INFO L140 encePairwiseOnDemand]: 16/33 looper letters, 74 selfloop transitions, 65 changer transitions 0/140 dead transitions. [2024-10-14 14:42:17,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 140 transitions, 1213 flow [2024-10-14 14:42:17,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 14:42:17,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-14 14:42:17,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 156 transitions. [2024-10-14 14:42:17,265 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3151515151515151 [2024-10-14 14:42:17,265 INFO L175 Difference]: Start difference. First operand has 73 places, 87 transitions, 691 flow. Second operand 15 states and 156 transitions. [2024-10-14 14:42:17,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 140 transitions, 1213 flow [2024-10-14 14:42:17,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 140 transitions, 1114 flow, removed 24 selfloop flow, removed 6 redundant places. [2024-10-14 14:42:17,282 INFO L231 Difference]: Finished difference. Result has 81 places, 102 transitions, 857 flow [2024-10-14 14:42:17,282 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=857, PETRI_PLACES=81, PETRI_TRANSITIONS=102} [2024-10-14 14:42:17,283 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 49 predicate places. [2024-10-14 14:42:17,283 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 102 transitions, 857 flow [2024-10-14 14:42:17,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.466666666666667) internal successors, (112), 15 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:17,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:42:17,283 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:42:17,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 14:42:17,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:17,484 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:42:17,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:42:17,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1474438091, now seen corresponding path program 6 times [2024-10-14 14:42:17,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:42:17,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393702188] [2024-10-14 14:42:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:17,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:42:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:17,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 14:42:17,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:42:17,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393702188] [2024-10-14 14:42:17,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393702188] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:42:17,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914290944] [2024-10-14 14:42:17,638 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 14:42:17,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:17,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:42:17,640 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 14:42:17,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 14:42:17,744 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-10-14 14:42:17,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 14:42:17,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 14:42:17,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:42:17,821 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 14:42:17,822 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 14:42:17,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914290944] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:42:17,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 14:42:17,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-10-14 14:42:17,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146278103] [2024-10-14 14:42:17,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:42:17,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:42:17,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:42:17,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:42:17,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 14:42:17,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 33 [2024-10-14 14:42:17,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 102 transitions, 857 flow. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:17,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:42:17,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 33 [2024-10-14 14:42:17,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:42:18,095 INFO L124 PetriNetUnfolderBase]: 737/1086 cut-off events. [2024-10-14 14:42:18,096 INFO L125 PetriNetUnfolderBase]: For 4569/4569 co-relation queries the response was YES. [2024-10-14 14:42:18,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4857 conditions, 1086 events. 737/1086 cut-off events. For 4569/4569 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3914 event pairs, 267 based on Foata normal form. 1/987 useless extension candidates. Maximal degree in co-relation 4785. Up to 820 conditions per place. [2024-10-14 14:42:18,106 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 82 selfloop transitions, 32 changer transitions 10/125 dead transitions. [2024-10-14 14:42:18,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 125 transitions, 1186 flow [2024-10-14 14:42:18,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 14:42:18,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 14:42:18,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 87 transitions. [2024-10-14 14:42:18,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4393939393939394 [2024-10-14 14:42:18,108 INFO L175 Difference]: Start difference. First operand has 81 places, 102 transitions, 857 flow. Second operand 6 states and 87 transitions. [2024-10-14 14:42:18,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 125 transitions, 1186 flow [2024-10-14 14:42:18,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 125 transitions, 1087 flow, removed 20 selfloop flow, removed 7 redundant places. [2024-10-14 14:42:18,126 INFO L231 Difference]: Finished difference. Result has 80 places, 98 transitions, 782 flow [2024-10-14 14:42:18,126 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=782, PETRI_PLACES=80, PETRI_TRANSITIONS=98} [2024-10-14 14:42:18,127 INFO L277 CegarLoopForPetriNet]: 32 programPoint places, 48 predicate places. [2024-10-14 14:42:18,127 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 98 transitions, 782 flow [2024-10-14 14:42:18,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:42:18,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:42:18,127 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:42:18,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-14 14:42:18,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:18,328 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-14 14:42:18,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:42:18,329 INFO L85 PathProgramCache]: Analyzing trace with hash -777035834, now seen corresponding path program 1 times [2024-10-14 14:42:18,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:42:18,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590278071] [2024-10-14 14:42:18,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:18,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:42:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:19,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 14:42:19,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:42:19,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590278071] [2024-10-14 14:42:19,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590278071] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 14:42:19,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080908431] [2024-10-14 14:42:19,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:42:19,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 14:42:19,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:42:19,961 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 14:42:19,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 14:42:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:42:20,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-10-14 14:42:20,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 14:42:20,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-14 14:42:20,208 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-14 14:42:20,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-10-14 14:42:20,281 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-10-14 14:42:20,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-10-14 14:42:20,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2024-10-14 14:42:20,729 INFO L349 Elim1Store]: treesize reduction 54, result has 41.3 percent of original size [2024-10-14 14:42:20,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 52 [2024-10-14 14:42:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 14:42:21,214 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 14:42:53,033 INFO L349 Elim1Store]: treesize reduction 102, result has 71.5 percent of original size [2024-10-14 14:42:53,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 1710 treesize of output 1005 [2024-10-14 14:42:53,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 14:42:53,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1090 treesize of output 1042 [2024-10-14 14:42:53,586 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-10-14 14:42:53,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 17 [2024-10-14 14:42:54,112 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-10-14 14:42:54,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2024-10-14 14:42:54,376 INFO L349 Elim1Store]: treesize reduction 16, result has 71.9 percent of original size [2024-10-14 14:42:54,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 65 [2024-10-14 14:42:54,518 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-10-14 14:42:54,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2024-10-14 14:43:01,817 INFO L349 Elim1Store]: treesize reduction 8, result has 78.4 percent of original size [2024-10-14 14:43:01,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 136 treesize of output 144 [2024-10-14 14:43:02,204 INFO L349 Elim1Store]: treesize reduction 8, result has 78.4 percent of original size [2024-10-14 14:43:02,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 74 [2024-10-14 14:43:02,607 INFO L349 Elim1Store]: treesize reduction 8, result has 78.4 percent of original size [2024-10-14 14:43:02,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 99 [2024-10-14 14:43:03,020 INFO L349 Elim1Store]: treesize reduction 8, result has 78.4 percent of original size [2024-10-14 14:43:03,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 231 treesize of output 227 [2024-10-14 14:43:04,492 INFO L349 Elim1Store]: treesize reduction 8, result has 78.4 percent of original size [2024-10-14 14:43:04,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 62 [2024-10-14 14:43:04,717 INFO L349 Elim1Store]: treesize reduction 8, result has 78.4 percent of original size [2024-10-14 14:43:04,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 120 [2024-10-14 14:43:05,560 INFO L349 Elim1Store]: treesize reduction 8, result has 78.4 percent of original size [2024-10-14 14:43:05,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 246 [2024-10-14 14:43:06,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 506 treesize of output 458 [2024-10-14 14:43:30,328 INFO L349 Elim1Store]: treesize reduction 44, result has 61.1 percent of original size [2024-10-14 14:43:30,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 131 treesize of output 171 [2024-10-14 14:43:33,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 202 [2024-10-14 14:43:37,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 14:43:37,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 2650 treesize of output 2386