./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-array-sum.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 80b1b132 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/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-array-sum.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-?-80b1b13-m [2024-01-31 17:43:22,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 17:43:22,634 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 17:43:22,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 17:43:22,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 17:43:22,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 17:43:22,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 17:43:22,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 17:43:22,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 17:43:22,668 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 17:43:22,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 17:43:22,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 17:43:22,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 17:43:22,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 17:43:22,671 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 17:43:22,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 17:43:22,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 17:43:22,671 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 17:43:22,672 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 17:43:22,672 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 17:43:22,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 17:43:22,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 17:43:22,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 17:43:22,673 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 17:43:22,673 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 17:43:22,673 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 17:43:22,674 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 17:43:22,674 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 17:43:22,674 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 17:43:22,674 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 17:43:22,675 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 17:43:22,675 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 17:43:22,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:43:22,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 17:43:22,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 17:43:22,676 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 17:43:22,676 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 17:43:22,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 17:43:22,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 17:43:22,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 17:43:22,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 17:43:22,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 17:43:22,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 17:43:22,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 17:43:22,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 17:43:22,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 17:43:22,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 17:43:22,936 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 17:43:22,937 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 17:43:22,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c [2024-01-31 17:43:23,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 17:43:24,147 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 17:43:24,149 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c [2024-01-31 17:43:24,160 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c920e2b8e/a68741fec29545db9acf6c8345d798f9/FLAG4bf355f74 [2024-01-31 17:43:24,177 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c920e2b8e/a68741fec29545db9acf6c8345d798f9 [2024-01-31 17:43:24,179 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 17:43:24,180 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 17:43:24,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-array-sum.wvr.yml/witness.yml [2024-01-31 17:43:24,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 17:43:24,306 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 17:43:24,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 17:43:24,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 17:43:24,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 17:43:24,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:43:24" (1/2) ... [2024-01-31 17:43:24,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6688d9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:43:24, skipping insertion in model container [2024-01-31 17:43:24,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 05:43:24" (1/2) ... [2024-01-31 17:43:24,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@315d281b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 05:43:24, skipping insertion in model container [2024-01-31 17:43:24,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:43:24" (2/2) ... [2024-01-31 17:43:24,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6688d9c0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24, skipping insertion in model container [2024-01-31 17:43:24,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:43:24" (2/2) ... [2024-01-31 17:43:24,314 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 17:43:24,354 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 17:43:24,358 INFO L98 nessWitnessExtractor]: Location invariant after [L76-L76] (i <= 2147483646) && ((unsigned long )_argptr == 0UL) [2024-01-31 17:43:24,358 INFO L98 nessWitnessExtractor]: Location invariant after [L50-L50] ((unsigned long )_argptr == 0UL) && (((((((((4 <= i && i <= 2147483646) && i != 0) && i != 1) && i != 2) && i != 3) || i == 3) || i == 2) || i == 1) || (0 == i && i == 0)) [2024-01-31 17:43:24,358 INFO L98 nessWitnessExtractor]: Location invariant after [L63-L63] ((unsigned long )_argptr == 0UL) && ((((i == 2 || i == 1) || (0 == i && i == 0)) || (((((4 <= i && i <= 2147483646) && i != 0) && i != 1) && i != 2) && i != 3)) || i == 3) [2024-01-31 17:43:24,377 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 17:43:24,552 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c[2874,2887] [2024-01-31 17:43:24,569 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:43:24,579 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 17:43:24,593 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-01-31 17:43:24,597 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-01-31 17:43:24,604 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-01-31 17:43:24,608 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-array-sum.wvr.c[2874,2887] [2024-01-31 17:43:24,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 17:43:24,630 INFO L208 MainTranslator]: Completed translation [2024-01-31 17:43:24,632 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24 WrapperNode [2024-01-31 17:43:24,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 17:43:24,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 17:43:24,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 17:43:24,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 17:43:24,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,691 INFO L138 Inliner]: procedures = 25, calls = 58, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 291 [2024-01-31 17:43:24,692 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 17:43:24,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 17:43:24,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 17:43:24,693 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 17:43:24,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,704 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,730 INFO L175 MemorySlicer]: Split 16 memory accesses to 5 slices as follows [2, 8, 2, 2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 5 writes are split as follows [0, 2, 1, 1, 1]. [2024-01-31 17:43:24,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 17:43:24,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 17:43:24,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 17:43:24,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 17:43:24,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (1/1) ... [2024-01-31 17:43:24,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 17:43:24,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:43:24,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-31 17:43:24,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-31 17:43:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 17:43:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 17:43:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 17:43:24,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 17:43:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 17:43:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 17:43:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-31 17:43:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 17:43:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 17:43:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 17:43:24,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-31 17:43:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-31 17:43:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-31 17:43:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-31 17:43:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-31 17:43:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-31 17:43:24,819 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-31 17:43:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-31 17:43:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 17:43:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 17:43:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 17:43:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 17:43:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-31 17:43:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 17:43:24,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 17:43:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-31 17:43:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 17:43:24,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 17:43:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 17:43:24,824 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 17:43:24,913 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 17:43:24,915 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 17:43:25,253 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 17:43:25,254 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 17:43:25,577 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 17:43:25,577 INFO L320 CfgBuilder]: Removed 5 assume(true) statements. [2024-01-31 17:43:25,579 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:43:25 BoogieIcfgContainer [2024-01-31 17:43:25,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 17:43:25,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 17:43:25,581 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 17:43:25,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 17:43:25,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 05:43:24" (1/4) ... [2024-01-31 17:43:25,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25708879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 05:43:25, skipping insertion in model container [2024-01-31 17:43:25,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 05:43:24" (2/4) ... [2024-01-31 17:43:25,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25708879 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 05:43:25, skipping insertion in model container [2024-01-31 17:43:25,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 05:43:24" (3/4) ... [2024-01-31 17:43:25,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25708879 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 05:43:25, skipping insertion in model container [2024-01-31 17:43:25,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:43:25" (4/4) ... [2024-01-31 17:43:25,587 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2024-01-31 17:43:25,601 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 17:43:25,602 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-31 17:43:25,602 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 17:43:25,644 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-31 17:43:25,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 40 transitions, 101 flow [2024-01-31 17:43:25,702 INFO L124 PetriNetUnfolderBase]: 5/37 cut-off events. [2024-01-31 17:43:25,703 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-31 17:43:25,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 37 events. 5/37 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-01-31 17:43:25,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 40 transitions, 101 flow [2024-01-31 17:43:25,709 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 36 transitions, 90 flow [2024-01-31 17:43:25,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 17:43:25,727 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@45ab7e8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 17:43:25,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-01-31 17:43:25,744 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 17:43:25,744 INFO L124 PetriNetUnfolderBase]: 5/35 cut-off events. [2024-01-31 17:43:25,744 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-31 17:43:25,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:43:25,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:43:25,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:43:25,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:43:25,750 INFO L85 PathProgramCache]: Analyzing trace with hash 449003182, now seen corresponding path program 1 times [2024-01-31 17:43:25,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:43:25,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510430415] [2024-01-31 17:43:25,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:43:25,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:43:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:43:26,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:43:26,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:43:26,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510430415] [2024-01-31 17:43:26,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510430415] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:43:26,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:43:26,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 17:43:26,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204110405] [2024-01-31 17:43:26,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:43:26,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 17:43:26,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:43:26,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 17:43:26,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 17:43:26,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 40 [2024-01-31 17:43:26,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:43:26,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:43:26,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 40 [2024-01-31 17:43:26,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:43:26,373 INFO L124 PetriNetUnfolderBase]: 1301/1975 cut-off events. [2024-01-31 17:43:26,374 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2024-01-31 17:43:26,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4009 conditions, 1975 events. 1301/1975 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 9372 event pairs, 335 based on Foata normal form. 1/1969 useless extension candidates. Maximal degree in co-relation 3367. Up to 1333 conditions per place. [2024-01-31 17:43:26,387 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 49 selfloop transitions, 4 changer transitions 1/58 dead transitions. [2024-01-31 17:43:26,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 58 transitions, 257 flow [2024-01-31 17:43:26,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 17:43:26,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 17:43:26,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-01-31 17:43:26,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-01-31 17:43:26,399 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 90 flow. Second operand 3 states and 76 transitions. [2024-01-31 17:43:26,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 58 transitions, 257 flow [2024-01-31 17:43:26,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 58 transitions, 235 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-31 17:43:26,408 INFO L231 Difference]: Finished difference. Result has 38 places, 39 transitions, 104 flow [2024-01-31 17:43:26,409 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=38, PETRI_TRANSITIONS=39} [2024-01-31 17:43:26,413 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2024-01-31 17:43:26,413 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 39 transitions, 104 flow [2024-01-31 17:43:26,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:43:26,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:43:26,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:43:26,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 17:43:26,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:43:26,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:43:26,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1131771001, now seen corresponding path program 1 times [2024-01-31 17:43:26,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:43:26,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280276283] [2024-01-31 17:43:26,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:43:26,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:43:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:43:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-31 17:43:26,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:43:26,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280276283] [2024-01-31 17:43:26,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280276283] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:43:26,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:43:26,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 17:43:26,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316835686] [2024-01-31 17:43:26,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:43:26,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 17:43:26,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:43:26,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 17:43:26,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 17:43:26,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-01-31 17:43:26,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 39 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:43:26,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:43:26,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-01-31 17:43:26,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:43:26,868 INFO L124 PetriNetUnfolderBase]: 1024/1671 cut-off events. [2024-01-31 17:43:26,868 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-01-31 17:43:26,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3330 conditions, 1671 events. 1024/1671 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 8675 event pairs, 743 based on Foata normal form. 1/1635 useless extension candidates. Maximal degree in co-relation 1520. Up to 1426 conditions per place. [2024-01-31 17:43:26,878 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 27 selfloop transitions, 4 changer transitions 1/42 dead transitions. [2024-01-31 17:43:26,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 42 transitions, 174 flow [2024-01-31 17:43:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 17:43:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 17:43:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2024-01-31 17:43:26,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46875 [2024-01-31 17:43:26,885 INFO L175 Difference]: Start difference. First operand has 38 places, 39 transitions, 104 flow. Second operand 4 states and 75 transitions. [2024-01-31 17:43:26,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 42 transitions, 174 flow [2024-01-31 17:43:26,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 42 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 17:43:26,888 INFO L231 Difference]: Finished difference. Result has 42 places, 41 transitions, 126 flow [2024-01-31 17:43:26,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=42, PETRI_TRANSITIONS=41} [2024-01-31 17:43:26,889 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 1 predicate places. [2024-01-31 17:43:26,889 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 41 transitions, 126 flow [2024-01-31 17:43:26,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:43:26,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:43:26,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:43:26,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 17:43:26,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:43:26,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:43:26,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1903058163, now seen corresponding path program 1 times [2024-01-31 17:43:26,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:43:26,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267196806] [2024-01-31 17:43:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:43:26,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:43:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:43:27,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-01-31 17:43:27,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:43:27,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267196806] [2024-01-31 17:43:27,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267196806] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 17:43:27,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 17:43:27,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-31 17:43:27,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917729347] [2024-01-31 17:43:27,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:43:27,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 17:43:27,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:43:27,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 17:43:27,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 17:43:27,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2024-01-31 17:43:27,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 41 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:43:27,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:43:27,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2024-01-31 17:43:27,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:43:27,321 INFO L124 PetriNetUnfolderBase]: 1250/1933 cut-off events. [2024-01-31 17:43:27,321 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-01-31 17:43:27,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3906 conditions, 1933 events. 1250/1933 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 9522 event pairs, 401 based on Foata normal form. 0/1844 useless extension candidates. Maximal degree in co-relation 3882. Up to 968 conditions per place. [2024-01-31 17:43:27,329 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 42 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2024-01-31 17:43:27,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 248 flow [2024-01-31 17:43:27,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 17:43:27,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 17:43:27,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2024-01-31 17:43:27,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50625 [2024-01-31 17:43:27,342 INFO L175 Difference]: Start difference. First operand has 42 places, 41 transitions, 126 flow. Second operand 4 states and 81 transitions. [2024-01-31 17:43:27,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 248 flow [2024-01-31 17:43:27,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 55 transitions, 238 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-01-31 17:43:27,344 INFO L231 Difference]: Finished difference. Result has 44 places, 42 transitions, 137 flow [2024-01-31 17:43:27,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=44, PETRI_TRANSITIONS=42} [2024-01-31 17:43:27,346 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2024-01-31 17:43:27,346 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 42 transitions, 137 flow [2024-01-31 17:43:27,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:43:27,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:43:27,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:43:27,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 17:43:27,347 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:43:27,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:43:27,347 INFO L85 PathProgramCache]: Analyzing trace with hash -618918109, now seen corresponding path program 1 times [2024-01-31 17:43:27,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:43:27,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786753872] [2024-01-31 17:43:27,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:43:27,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:43:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:43:27,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-31 17:43:27,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:43:27,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786753872] [2024-01-31 17:43:27,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786753872] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:43:27,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714212537] [2024-01-31 17:43:27,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:43:27,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:43:27,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:43:27,513 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) [2024-01-31 17:43:27,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-01-31 17:43:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:43:27,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-31 17:43:27,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:43:27,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-31 17:43:27,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:43:27,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-31 17:43:27,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714212537] provided 1 perfect and 1 imperfect interpolant sequences [2024-01-31 17:43:27,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-01-31 17:43:27,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2024-01-31 17:43:27,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558124110] [2024-01-31 17:43:27,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 17:43:27,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-31 17:43:27,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:43:27,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-31 17:43:27,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-01-31 17:43:27,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 40 [2024-01-31 17:43:27,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 42 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:43:27,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:43:27,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 40 [2024-01-31 17:43:27,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:43:27,900 INFO L124 PetriNetUnfolderBase]: 1278/1970 cut-off events. [2024-01-31 17:43:27,900 INFO L125 PetriNetUnfolderBase]: For 660/660 co-relation queries the response was YES. [2024-01-31 17:43:27,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4510 conditions, 1970 events. 1278/1970 cut-off events. For 660/660 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 9539 event pairs, 363 based on Foata normal form. 0/1852 useless extension candidates. Maximal degree in co-relation 4480. Up to 985 conditions per place. [2024-01-31 17:43:27,934 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 41 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2024-01-31 17:43:27,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 56 transitions, 269 flow [2024-01-31 17:43:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-31 17:43:27,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-31 17:43:27,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 91 transitions. [2024-01-31 17:43:27,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.455 [2024-01-31 17:43:27,936 INFO L175 Difference]: Start difference. First operand has 44 places, 42 transitions, 137 flow. Second operand 5 states and 91 transitions. [2024-01-31 17:43:27,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 56 transitions, 269 flow [2024-01-31 17:43:27,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 56 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 17:43:27,939 INFO L231 Difference]: Finished difference. Result has 48 places, 43 transitions, 156 flow [2024-01-31 17:43:27,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=156, PETRI_PLACES=48, PETRI_TRANSITIONS=43} [2024-01-31 17:43:27,940 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 7 predicate places. [2024-01-31 17:43:27,940 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 43 transitions, 156 flow [2024-01-31 17:43:27,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:43:27,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:43:27,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:43:27,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-01-31 17:43:28,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:43:28,153 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:43:28,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:43:28,154 INFO L85 PathProgramCache]: Analyzing trace with hash 358728294, now seen corresponding path program 1 times [2024-01-31 17:43:28,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:43:28,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414882247] [2024-01-31 17:43:28,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:43:28,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:43:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:43:29,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:43:29,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:43:29,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414882247] [2024-01-31 17:43:29,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414882247] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:43:29,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159278165] [2024-01-31 17:43:29,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:43:29,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:43:29,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:43:29,183 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) [2024-01-31 17:43:29,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-31 17:43:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:43:29,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 51 conjunts are in the unsatisfiable core [2024-01-31 17:43:29,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:43:29,354 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 [2024-01-31 17:43:29,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:43:29,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:43:29,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:43:29,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2024-01-31 17:43:29,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:43:29,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2024-01-31 17:43:29,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:43:29,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2024-01-31 17:43:29,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:43:29,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:43:29,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:43:29,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:43:29,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 1 [2024-01-31 17:43:29,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:43:29,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:43:29,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:43:29,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:43:29,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2024-01-31 17:43:29,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:43:29,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2024-01-31 17:43:29,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:43:29,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2024-01-31 17:43:29,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:29,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2024-01-31 17:43:29,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2024-01-31 17:43:29,629 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-01-31 17:43:29,630 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 11 treesize of output 11 [2024-01-31 17:43:29,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-01-31 17:43:29,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-01-31 17:43:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:43:29,908 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:43:45,568 INFO L349 Elim1Store]: treesize reduction 28, result has 64.6 percent of original size [2024-01-31 17:43:45,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 1530 treesize of output 1100 [2024-01-31 17:43:45,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:43:45,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 694 treesize of output 642 [2024-01-31 17:43:58,559 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 255 treesize of output 213 [2024-01-31 17:43:58,588 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2024-01-31 17:43:58,589 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 175 treesize of output 141 [2024-01-31 17:43:58,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,784 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,784 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2024-01-31 17:43:58,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,794 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,794 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,795 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,795 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:43:58,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 41 [2024-01-31 17:43:58,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,812 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,813 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 18 [2024-01-31 17:43:58,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,821 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,821 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,822 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,823 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,826 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-01-31 17:43:58,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 1 [2024-01-31 17:43:58,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,834 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,834 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,835 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,835 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,839 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-01-31 17:43:58,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 1 [2024-01-31 17:43:58,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,847 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,847 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,850 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:58,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 1 [2024-01-31 17:43:58,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,872 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,873 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 28 [2024-01-31 17:43:58,887 INFO L349 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2024-01-31 17:43:58,891 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 255 treesize of output 1 [2024-01-31 17:43:58,898 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-01-31 17:43:58,900 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 116 treesize of output 1 [2024-01-31 17:43:58,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,908 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,909 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 35 [2024-01-31 17:43:58,922 INFO L349 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2024-01-31 17:43:58,922 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 142 treesize of output 1 [2024-01-31 17:43:58,933 INFO L349 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2024-01-31 17:43:58,933 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 117 treesize of output 1 [2024-01-31 17:43:58,940 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-01-31 17:43:58,940 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 83 treesize of output 1 [2024-01-31 17:43:58,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,953 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,953 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,956 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:58,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 1 [2024-01-31 17:43:58,968 INFO L349 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2024-01-31 17:43:58,968 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 219 treesize of output 1 [2024-01-31 17:43:58,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,975 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,975 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,976 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,977 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,980 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-01-31 17:43:58,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 1 [2024-01-31 17:43:58,988 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:58,988 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 176 treesize of output 1 [2024-01-31 17:43:58,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,995 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,995 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,996 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,996 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:58,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:58,999 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-01-31 17:43:58,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 1 [2024-01-31 17:43:59,011 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-01-31 17:43:59,012 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 70 treesize of output 1 [2024-01-31 17:43:59,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,017 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,017 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 11 [2024-01-31 17:43:59,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2024-01-31 17:43:59,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,031 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,031 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 21 [2024-01-31 17:43:59,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 3 [2024-01-31 17:43:59,045 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-01-31 17:43:59,046 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 1 [2024-01-31 17:43:59,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,051 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,052 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 14 [2024-01-31 17:43:59,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,063 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-01-31 17:43:59,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 1 [2024-01-31 17:43:59,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,093 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,094 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 28 [2024-01-31 17:43:59,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,101 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,101 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 18 [2024-01-31 17:43:59,109 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-01-31 17:43:59,111 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 83 treesize of output 1 [2024-01-31 17:43:59,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,116 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,117 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2024-01-31 17:43:59,126 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-01-31 17:43:59,127 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 61 treesize of output 1 [2024-01-31 17:43:59,134 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-01-31 17:43:59,134 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 116 treesize of output 1 [2024-01-31 17:43:59,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,139 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,140 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2024-01-31 17:43:59,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,156 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,156 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 28 [2024-01-31 17:43:59,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,163 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,163 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 28 [2024-01-31 17:43:59,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,175 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,175 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 18 [2024-01-31 17:43:59,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,185 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,186 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2024-01-31 17:43:59,194 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-01-31 17:43:59,194 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 79 treesize of output 1 [2024-01-31 17:43:59,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,200 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,200 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2024-01-31 17:43:59,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,207 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,208 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 28 [2024-01-31 17:43:59,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,215 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,215 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 28 [2024-01-31 17:43:59,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,223 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,223 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 28 [2024-01-31 17:43:59,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,230 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,231 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 21 [2024-01-31 17:43:59,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,238 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,238 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 28 [2024-01-31 17:43:59,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,246 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,246 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 28 [2024-01-31 17:43:59,258 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-01-31 17:43:59,267 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-01-31 17:43:59,282 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-01-31 17:43:59,282 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 61 treesize of output 1 [2024-01-31 17:43:59,289 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-01-31 17:43:59,290 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 98 treesize of output 1 [2024-01-31 17:43:59,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,295 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,296 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 21 [2024-01-31 17:43:59,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,304 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,304 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 21 [2024-01-31 17:43:59,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,315 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,315 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,319 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:59,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 1 [2024-01-31 17:43:59,332 INFO L349 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2024-01-31 17:43:59,332 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 219 treesize of output 1 [2024-01-31 17:43:59,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,340 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,340 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,341 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,341 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,344 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-01-31 17:43:59,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 1 [2024-01-31 17:43:59,353 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:59,354 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 132 treesize of output 1 [2024-01-31 17:43:59,361 INFO L349 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2024-01-31 17:43:59,361 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 175 treesize of output 1 [2024-01-31 17:43:59,368 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:59,368 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 176 treesize of output 1 [2024-01-31 17:43:59,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,375 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,376 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,376 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,377 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,379 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-01-31 17:43:59,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 1 [2024-01-31 17:43:59,388 INFO L349 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2024-01-31 17:43:59,388 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 255 treesize of output 1 [2024-01-31 17:43:59,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,397 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,398 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,400 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:59,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 1 [2024-01-31 17:43:59,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,410 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,410 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,414 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:59,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 1 [2024-01-31 17:43:59,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,421 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,422 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 28 [2024-01-31 17:43:59,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,432 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,433 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 28 [2024-01-31 17:43:59,442 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-01-31 17:43:59,442 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 116 treesize of output 1 [2024-01-31 17:43:59,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,448 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,448 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 28 [2024-01-31 17:43:59,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,460 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,461 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,463 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:59,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 1 [2024-01-31 17:43:59,472 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:59,473 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 92 treesize of output 1 [2024-01-31 17:43:59,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,481 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,482 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,484 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:59,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 1 [2024-01-31 17:43:59,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,493 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,493 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,494 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,494 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,496 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-01-31 17:43:59,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 1 [2024-01-31 17:43:59,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,503 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,503 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,504 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,504 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,507 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-01-31 17:43:59,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 1 [2024-01-31 17:43:59,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,515 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,517 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,517 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,517 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,520 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-01-31 17:43:59,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 1 [2024-01-31 17:43:59,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-01-31 17:43:59,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 11 [2024-01-31 17:43:59,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,546 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,546 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 18 [2024-01-31 17:43:59,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,575 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,576 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 28 [2024-01-31 17:43:59,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,582 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,583 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 11 [2024-01-31 17:43:59,594 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:59,594 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 132 treesize of output 1 [2024-01-31 17:43:59,601 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-01-31 17:43:59,601 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 85 treesize of output 1 [2024-01-31 17:43:59,607 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-01-31 17:43:59,607 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 128 treesize of output 1 [2024-01-31 17:43:59,613 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2024-01-31 17:43:59,614 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 128 treesize of output 1 [2024-01-31 17:43:59,620 INFO L349 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2024-01-31 17:43:59,621 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 175 treesize of output 1 [2024-01-31 17:43:59,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,629 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,629 INFO L173 IndexEqualityManager]: detected equality via solver [2024-01-31 17:43:59,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:43:59,632 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-01-31 17:43:59,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 1 [2024-01-31 17:44:03,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:44:03,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159278165] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:44:03,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:44:03,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 32 [2024-01-31 17:44:03,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855777343] [2024-01-31 17:44:03,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:44:03,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-01-31 17:44:03,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:44:03,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-01-31 17:44:03,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=927, Unknown=3, NotChecked=0, Total=1056 [2024-01-31 17:44:08,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:44:12,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:44:16,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:44:16,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 40 [2024-01-31 17:44:16,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 156 flow. Second operand has 33 states, 33 states have (on average 6.212121212121212) internal successors, (205), 33 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:44:16,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:44:16,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 40 [2024-01-31 17:44:16,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:44:20,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:44:24,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:44:43,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:44:48,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:44:51,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:45:05,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:45:07,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:45:09,182 INFO L124 PetriNetUnfolderBase]: 6043/8604 cut-off events. [2024-01-31 17:45:09,182 INFO L125 PetriNetUnfolderBase]: For 4437/4437 co-relation queries the response was YES. [2024-01-31 17:45:09,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22593 conditions, 8604 events. 6043/8604 cut-off events. For 4437/4437 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 40935 event pairs, 432 based on Foata normal form. 2/8136 useless extension candidates. Maximal degree in co-relation 18875. Up to 3447 conditions per place. [2024-01-31 17:45:09,214 INFO L140 encePairwiseOnDemand]: 24/40 looper letters, 247 selfloop transitions, 80 changer transitions 2/330 dead transitions. [2024-01-31 17:45:09,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 330 transitions, 1686 flow [2024-01-31 17:45:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-01-31 17:45:09,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-01-31 17:45:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 433 transitions. [2024-01-31 17:45:09,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4009259259259259 [2024-01-31 17:45:09,217 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 156 flow. Second operand 27 states and 433 transitions. [2024-01-31 17:45:09,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 330 transitions, 1686 flow [2024-01-31 17:45:09,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 330 transitions, 1662 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-01-31 17:45:09,224 INFO L231 Difference]: Finished difference. Result has 89 places, 120 transitions, 774 flow [2024-01-31 17:45:09,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=774, PETRI_PLACES=89, PETRI_TRANSITIONS=120} [2024-01-31 17:45:09,225 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 48 predicate places. [2024-01-31 17:45:09,225 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 120 transitions, 774 flow [2024-01-31 17:45:09,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 6.212121212121212) internal successors, (205), 33 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:45:09,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:45:09,225 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:45:09,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-01-31 17:45:09,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:45:09,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:45:09,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:45:09,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1197051504, now seen corresponding path program 2 times [2024-01-31 17:45:09,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:45:09,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889082626] [2024-01-31 17:45:09,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:45:09,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:45:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:45:10,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:45:10,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:45:10,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889082626] [2024-01-31 17:45:10,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889082626] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:45:10,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277654997] [2024-01-31 17:45:10,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-31 17:45:10,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:45:10,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:45:10,467 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) [2024-01-31 17:45:10,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-01-31 17:45:10,584 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-31 17:45:10,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:45:10,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 45 conjunts are in the unsatisfiable core [2024-01-31 17:45:10,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:45:10,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2024-01-31 17:45:10,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:10,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 19 [2024-01-31 17:45:10,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:45:10,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:45:11,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:11,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 248 treesize of output 232 [2024-01-31 17:45:11,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:11,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 112 treesize of output 120 [2024-01-31 17:45:11,697 INFO L349 Elim1Store]: treesize reduction 13, result has 77.2 percent of original size [2024-01-31 17:45:11,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 214 treesize of output 169 [2024-01-31 17:45:11,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:45:11,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:45:11,816 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:11,816 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 283 treesize of output 118 [2024-01-31 17:45:11,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:45:11,882 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 50 [2024-01-31 17:45:11,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:45:11,907 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-01-31 17:45:11,908 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 172 treesize of output 1 [2024-01-31 17:45:11,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:45:11,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-01-31 17:45:11,923 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-01-31 17:45:11,923 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 2 new quantified variables, introduced 4 case distinctions, treesize of input 181 treesize of output 1 [2024-01-31 17:45:11,989 INFO L349 Elim1Store]: treesize reduction 13, result has 77.2 percent of original size [2024-01-31 17:45:11,989 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 369 treesize of output 284 [2024-01-31 17:45:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:45:12,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277654997] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:45:12,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:45:12,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 33 [2024-01-31 17:45:12,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982665705] [2024-01-31 17:45:12,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:45:12,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-01-31 17:45:12,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:45:12,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-01-31 17:45:12,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=972, Unknown=0, NotChecked=0, Total=1122 [2024-01-31 17:45:12,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2024-01-31 17:45:12,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 120 transitions, 774 flow. Second operand has 34 states, 34 states have (on average 8.235294117647058) internal successors, (280), 34 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:45:12,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:45:12,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2024-01-31 17:45:12,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:45:15,759 INFO L124 PetriNetUnfolderBase]: 7981/11628 cut-off events. [2024-01-31 17:45:15,760 INFO L125 PetriNetUnfolderBase]: For 32247/32247 co-relation queries the response was YES. [2024-01-31 17:45:15,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42849 conditions, 11628 events. 7981/11628 cut-off events. For 32247/32247 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 65114 event pairs, 885 based on Foata normal form. 2/11625 useless extension candidates. Maximal degree in co-relation 41724. Up to 6021 conditions per place. [2024-01-31 17:45:15,816 INFO L140 encePairwiseOnDemand]: 23/40 looper letters, 364 selfloop transitions, 140 changer transitions 2/510 dead transitions. [2024-01-31 17:45:15,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 510 transitions, 3711 flow [2024-01-31 17:45:15,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-01-31 17:45:15,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-01-31 17:45:15,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 664 transitions. [2024-01-31 17:45:15,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.415 [2024-01-31 17:45:15,819 INFO L175 Difference]: Start difference. First operand has 89 places, 120 transitions, 774 flow. Second operand 40 states and 664 transitions. [2024-01-31 17:45:15,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 510 transitions, 3711 flow [2024-01-31 17:45:15,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 510 transitions, 3511 flow, removed 96 selfloop flow, removed 2 redundant places. [2024-01-31 17:45:15,877 INFO L231 Difference]: Finished difference. Result has 151 places, 243 transitions, 2221 flow [2024-01-31 17:45:15,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=2221, PETRI_PLACES=151, PETRI_TRANSITIONS=243} [2024-01-31 17:45:15,877 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 110 predicate places. [2024-01-31 17:45:15,877 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 243 transitions, 2221 flow [2024-01-31 17:45:15,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.235294117647058) internal successors, (280), 34 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:45:15,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:45:15,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:45:15,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-01-31 17:45:16,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:45:16,089 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:45:16,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:45:16,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1669322798, now seen corresponding path program 3 times [2024-01-31 17:45:16,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:45:16,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855409961] [2024-01-31 17:45:16,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:45:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:45:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:45:16,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:45:16,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:45:16,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855409961] [2024-01-31 17:45:16,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855409961] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:45:16,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141063614] [2024-01-31 17:45:16,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-01-31 17:45:16,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:45:16,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:45:16,964 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) [2024-01-31 17:45:16,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-01-31 17:45:17,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-01-31 17:45:17,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:45:17,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 46 conjunts are in the unsatisfiable core [2024-01-31 17:45:17,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:45:17,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2024-01-31 17:45:17,511 INFO L349 Elim1Store]: treesize reduction 24, result has 57.9 percent of original size [2024-01-31 17:45:17,512 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 31 treesize of output 43 [2024-01-31 17:45:17,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:45:17,645 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:45:18,087 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:18,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 266 treesize of output 250 [2024-01-31 17:45:18,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:18,300 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 401 treesize of output 337 [2024-01-31 17:45:18,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:18,309 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 272 treesize of output 208 [2024-01-31 17:45:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:45:18,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141063614] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:45:18,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:45:18,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 37 [2024-01-31 17:45:18,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269158852] [2024-01-31 17:45:18,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:45:18,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-01-31 17:45:18,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:45:18,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-01-31 17:45:18,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1223, Unknown=0, NotChecked=0, Total=1406 [2024-01-31 17:45:18,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 40 [2024-01-31 17:45:18,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 243 transitions, 2221 flow. Second operand has 38 states, 38 states have (on average 7.2368421052631575) internal successors, (275), 38 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:45:18,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:45:18,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 40 [2024-01-31 17:45:18,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:45:23,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:45:27,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-01-31 17:45:34,553 INFO L124 PetriNetUnfolderBase]: 19038/26987 cut-off events. [2024-01-31 17:45:34,553 INFO L125 PetriNetUnfolderBase]: For 235990/235990 co-relation queries the response was YES. [2024-01-31 17:45:34,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132706 conditions, 26987 events. 19038/26987 cut-off events. For 235990/235990 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 161716 event pairs, 1309 based on Foata normal form. 3/26989 useless extension candidates. Maximal degree in co-relation 131123. Up to 10878 conditions per place. [2024-01-31 17:45:34,744 INFO L140 encePairwiseOnDemand]: 22/40 looper letters, 773 selfloop transitions, 457 changer transitions 9/1241 dead transitions. [2024-01-31 17:45:34,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 1241 transitions, 11977 flow [2024-01-31 17:45:34,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2024-01-31 17:45:34,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2024-01-31 17:45:34,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 1330 transitions. [2024-01-31 17:45:34,749 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4006024096385542 [2024-01-31 17:45:34,749 INFO L175 Difference]: Start difference. First operand has 151 places, 243 transitions, 2221 flow. Second operand 83 states and 1330 transitions. [2024-01-31 17:45:34,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 1241 transitions, 11977 flow [2024-01-31 17:45:35,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 1241 transitions, 11149 flow, removed 407 selfloop flow, removed 6 redundant places. [2024-01-31 17:45:35,630 INFO L231 Difference]: Finished difference. Result has 253 places, 655 transitions, 8545 flow [2024-01-31 17:45:35,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=1815, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=83, PETRI_FLOW=8545, PETRI_PLACES=253, PETRI_TRANSITIONS=655} [2024-01-31 17:45:35,631 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 212 predicate places. [2024-01-31 17:45:35,631 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 655 transitions, 8545 flow [2024-01-31 17:45:35,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.2368421052631575) internal successors, (275), 38 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:45:35,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:45:35,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:45:35,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-01-31 17:45:35,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:45:35,843 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:45:35,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:45:35,843 INFO L85 PathProgramCache]: Analyzing trace with hash 653263796, now seen corresponding path program 4 times [2024-01-31 17:45:35,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:45:35,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275975369] [2024-01-31 17:45:35,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:45:35,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:45:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:45:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:45:36,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:45:36,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275975369] [2024-01-31 17:45:36,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275975369] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:45:36,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681917281] [2024-01-31 17:45:36,647 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-01-31 17:45:36,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:45:36,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:45:36,648 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) [2024-01-31 17:45:36,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-01-31 17:45:36,758 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-01-31 17:45:36,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:45:36,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 44 conjunts are in the unsatisfiable core [2024-01-31 17:45:36,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:45:36,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2024-01-31 17:45:37,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:37,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 23 [2024-01-31 17:45:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-31 17:45:37,099 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:45:37,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:37,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 248 treesize of output 232 [2024-01-31 17:45:37,678 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:37,678 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 200 treesize of output 142 [2024-01-31 17:45:37,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-31 17:45:37,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681917281] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:45:37,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:45:37,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 10] total 30 [2024-01-31 17:45:37,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598422606] [2024-01-31 17:45:37,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:45:37,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-01-31 17:45:37,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:45:37,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-01-31 17:45:37,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=821, Unknown=0, NotChecked=0, Total=930 [2024-01-31 17:45:38,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2024-01-31 17:45:38,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 655 transitions, 8545 flow. Second operand has 31 states, 31 states have (on average 8.32258064516129) internal successors, (258), 31 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:45:38,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:45:38,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2024-01-31 17:45:38,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:45:45,526 INFO L124 PetriNetUnfolderBase]: 18584/27162 cut-off events. [2024-01-31 17:45:45,526 INFO L125 PetriNetUnfolderBase]: For 396604/396604 co-relation queries the response was YES. [2024-01-31 17:45:45,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161694 conditions, 27162 events. 18584/27162 cut-off events. For 396604/396604 co-relation queries the response was YES. Maximal size of possible extension queue 1199. Compared 177145 event pairs, 1945 based on Foata normal form. 3/27163 useless extension candidates. Maximal degree in co-relation 160148. Up to 19476 conditions per place. [2024-01-31 17:45:45,830 INFO L140 encePairwiseOnDemand]: 24/40 looper letters, 770 selfloop transitions, 350 changer transitions 3/1127 dead transitions. [2024-01-31 17:45:45,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 1127 transitions, 16381 flow [2024-01-31 17:45:45,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-01-31 17:45:45,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-01-31 17:45:45,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 573 transitions. [2024-01-31 17:45:45,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4340909090909091 [2024-01-31 17:45:45,833 INFO L175 Difference]: Start difference. First operand has 253 places, 655 transitions, 8545 flow. Second operand 33 states and 573 transitions. [2024-01-31 17:45:45,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 1127 transitions, 16381 flow [2024-01-31 17:45:52,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 1127 transitions, 12034 flow, removed 2136 selfloop flow, removed 11 redundant places. [2024-01-31 17:45:52,975 INFO L231 Difference]: Finished difference. Result has 285 places, 834 transitions, 9080 flow [2024-01-31 17:45:52,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=5678, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=9080, PETRI_PLACES=285, PETRI_TRANSITIONS=834} [2024-01-31 17:45:52,977 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 244 predicate places. [2024-01-31 17:45:52,977 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 834 transitions, 9080 flow [2024-01-31 17:45:52,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 8.32258064516129) internal successors, (258), 31 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:45:52,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:45:52,978 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:45:52,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-01-31 17:45:53,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:45:53,189 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:45:53,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:45:53,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2011179536, now seen corresponding path program 5 times [2024-01-31 17:45:53,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:45:53,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736534190] [2024-01-31 17:45:53,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:45:53,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:45:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:45:53,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:45:53,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:45:53,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736534190] [2024-01-31 17:45:53,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736534190] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:45:53,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452117454] [2024-01-31 17:45:53,926 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-01-31 17:45:53,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:45:53,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:45:53,940 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) [2024-01-31 17:45:53,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-01-31 17:45:54,050 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-01-31 17:45:54,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:45:54,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 45 conjunts are in the unsatisfiable core [2024-01-31 17:45:54,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:45:54,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2024-01-31 17:45:54,439 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:54,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 19 [2024-01-31 17:45:54,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:45:54,480 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:45:54,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:54,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 248 treesize of output 232 [2024-01-31 17:45:54,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:54,999 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 112 treesize of output 104 [2024-01-31 17:45:55,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:45:55,005 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 84 treesize of output 68 [2024-01-31 17:45:55,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:45:55,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452117454] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:45:55,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:45:55,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 33 [2024-01-31 17:45:55,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780647005] [2024-01-31 17:45:55,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:45:55,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-01-31 17:45:55,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:45:55,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-01-31 17:45:55,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=973, Unknown=0, NotChecked=0, Total=1122 [2024-01-31 17:45:55,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2024-01-31 17:45:55,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 834 transitions, 9080 flow. Second operand has 34 states, 34 states have (on average 8.088235294117647) internal successors, (275), 34 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:45:55,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:45:55,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2024-01-31 17:45:55,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:46:03,187 INFO L124 PetriNetUnfolderBase]: 20830/30375 cut-off events. [2024-01-31 17:46:03,188 INFO L125 PetriNetUnfolderBase]: For 323091/323091 co-relation queries the response was YES. [2024-01-31 17:46:03,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160789 conditions, 30375 events. 20830/30375 cut-off events. For 323091/323091 co-relation queries the response was YES. Maximal size of possible extension queue 1305. Compared 199876 event pairs, 2045 based on Foata normal form. 1/30375 useless extension candidates. Maximal degree in co-relation 159341. Up to 20509 conditions per place. [2024-01-31 17:46:03,987 INFO L140 encePairwiseOnDemand]: 23/40 looper letters, 711 selfloop transitions, 626 changer transitions 1/1342 dead transitions. [2024-01-31 17:46:03,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 1342 transitions, 16364 flow [2024-01-31 17:46:03,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-01-31 17:46:03,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2024-01-31 17:46:03,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 675 transitions. [2024-01-31 17:46:03,989 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4017857142857143 [2024-01-31 17:46:03,989 INFO L175 Difference]: Start difference. First operand has 285 places, 834 transitions, 9080 flow. Second operand 42 states and 675 transitions. [2024-01-31 17:46:03,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 1342 transitions, 16364 flow [2024-01-31 17:46:08,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1342 transitions, 14640 flow, removed 827 selfloop flow, removed 8 redundant places. [2024-01-31 17:46:08,128 INFO L231 Difference]: Finished difference. Result has 328 places, 1074 transitions, 12978 flow [2024-01-31 17:46:08,129 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=7856, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=834, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=424, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=12978, PETRI_PLACES=328, PETRI_TRANSITIONS=1074} [2024-01-31 17:46:08,130 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 287 predicate places. [2024-01-31 17:46:08,130 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 1074 transitions, 12978 flow [2024-01-31 17:46:08,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.088235294117647) internal successors, (275), 34 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:46:08,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:46:08,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:46:08,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-01-31 17:46:08,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:46:08,341 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:46:08,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:46:08,341 INFO L85 PathProgramCache]: Analyzing trace with hash -116497300, now seen corresponding path program 6 times [2024-01-31 17:46:08,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:46:08,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363831809] [2024-01-31 17:46:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:46:08,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:46:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:46:09,227 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:46:09,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:46:09,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363831809] [2024-01-31 17:46:09,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363831809] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:46:09,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269154401] [2024-01-31 17:46:09,228 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-01-31 17:46:09,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:46:09,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:46:09,236 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) [2024-01-31 17:46:09,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-01-31 17:46:09,348 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-01-31 17:46:09,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-31 17:46:09,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 45 conjunts are in the unsatisfiable core [2024-01-31 17:46:09,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:46:09,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2024-01-31 17:46:09,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:46:09,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 19 [2024-01-31 17:46:09,676 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:46:09,676 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:46:09,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:46:09,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 248 treesize of output 232 [2024-01-31 17:46:10,087 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:46:10,088 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 369 treesize of output 313 [2024-01-31 17:46:10,100 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:46:10,100 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 236 treesize of output 192 [2024-01-31 17:46:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:46:10,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269154401] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:46:10,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:46:10,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 30 [2024-01-31 17:46:10,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074395904] [2024-01-31 17:46:10,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:46:10,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-01-31 17:46:10,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:46:10,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-01-31 17:46:10,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=811, Unknown=0, NotChecked=0, Total=930 [2024-01-31 17:46:10,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2024-01-31 17:46:10,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 1074 transitions, 12978 flow. Second operand has 31 states, 31 states have (on average 8.290322580645162) internal successors, (257), 31 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:46:10,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:46:10,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2024-01-31 17:46:10,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:46:20,060 INFO L124 PetriNetUnfolderBase]: 24414/35460 cut-off events. [2024-01-31 17:46:20,060 INFO L125 PetriNetUnfolderBase]: For 405995/405995 co-relation queries the response was YES. [2024-01-31 17:46:20,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202333 conditions, 35460 events. 24414/35460 cut-off events. For 405995/405995 co-relation queries the response was YES. Maximal size of possible extension queue 1563. Compared 237610 event pairs, 2533 based on Foata normal form. 1/35460 useless extension candidates. Maximal degree in co-relation 200699. Up to 28830 conditions per place. [2024-01-31 17:46:20,752 INFO L140 encePairwiseOnDemand]: 23/40 looper letters, 1247 selfloop transitions, 291 changer transitions 1/1543 dead transitions. [2024-01-31 17:46:20,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 1543 transitions, 21292 flow [2024-01-31 17:46:20,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-01-31 17:46:20,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-01-31 17:46:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 692 transitions. [2024-01-31 17:46:20,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3931818181818182 [2024-01-31 17:46:20,772 INFO L175 Difference]: Start difference. First operand has 328 places, 1074 transitions, 12978 flow. Second operand 44 states and 692 transitions. [2024-01-31 17:46:20,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 1543 transitions, 21292 flow [2024-01-31 17:46:30,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 1543 transitions, 19526 flow, removed 765 selfloop flow, removed 20 redundant places. [2024-01-31 17:46:30,667 INFO L231 Difference]: Finished difference. Result has 369 places, 1286 transitions, 16194 flow [2024-01-31 17:46:30,668 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=11526, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=16194, PETRI_PLACES=369, PETRI_TRANSITIONS=1286} [2024-01-31 17:46:30,668 INFO L281 CegarLoopForPetriNet]: 41 programPoint places, 328 predicate places. [2024-01-31 17:46:30,668 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 1286 transitions, 16194 flow [2024-01-31 17:46:30,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 8.290322580645162) internal successors, (257), 31 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:46:30,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 17:46:30,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-31 17:46:30,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-01-31 17:46:30,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:46:30,880 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-01-31 17:46:30,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 17:46:30,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1570420992, now seen corresponding path program 7 times [2024-01-31 17:46:30,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 17:46:30,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137913786] [2024-01-31 17:46:30,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 17:46:30,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 17:46:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:46:31,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:46:31,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 17:46:31,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137913786] [2024-01-31 17:46:31,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137913786] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-31 17:46:31,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458716433] [2024-01-31 17:46:31,590 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-01-31 17:46:31,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-31 17:46:31,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 17:46:31,591 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) [2024-01-31 17:46:31,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-01-31 17:46:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 17:46:31,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 44 conjunts are in the unsatisfiable core [2024-01-31 17:46:31,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-31 17:46:31,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 1 [2024-01-31 17:46:32,011 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:46:32,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 27 treesize of output 23 [2024-01-31 17:46:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:46:32,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-31 17:46:32,289 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:46:32,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 248 treesize of output 232 [2024-01-31 17:46:32,548 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:46:32,548 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 267 treesize of output 227 [2024-01-31 17:46:32,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-31 17:46:32,557 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 166 treesize of output 134 [2024-01-31 17:46:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 17:46:32,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458716433] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-31 17:46:32,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-31 17:46:32,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 33 [2024-01-31 17:46:32,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308553839] [2024-01-31 17:46:32,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-31 17:46:32,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-01-31 17:46:32,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 17:46:32,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-01-31 17:46:32,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=976, Unknown=0, NotChecked=0, Total=1122 [2024-01-31 17:46:33,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 40 [2024-01-31 17:46:33,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 1286 transitions, 16194 flow. Second operand has 34 states, 34 states have (on average 8.058823529411764) internal successors, (274), 34 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-31 17:46:33,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 17:46:33,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 40 [2024-01-31 17:46:33,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 17:46:44,105 INFO L124 PetriNetUnfolderBase]: 27087/39248 cut-off events. [2024-01-31 17:46:44,105 INFO L125 PetriNetUnfolderBase]: For 369050/369050 co-relation queries the response was YES. [2024-01-31 17:46:44,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221027 conditions, 39248 events. 27087/39248 cut-off events. For 369050/369050 co-relation queries the response was YES. Maximal size of possible extension queue 1699. Compared 265731 event pairs, 2857 based on Foata normal form. 1/39248 useless extension candidates. Maximal degree in co-relation 220873. Up to 33299 conditions per place. [2024-01-31 17:46:44,858 INFO L140 encePairwiseOnDemand]: 23/40 looper letters, 1387 selfloop transitions, 226 changer transitions 1/1618 dead transitions. [2024-01-31 17:46:44,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 1618 transitions, 22529 flow [2024-01-31 17:46:44,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-01-31 17:46:44,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-01-31 17:46:44,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 547 transitions. [2024-01-31 17:46:44,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41439393939393937 [2024-01-31 17:46:44,860 INFO L175 Difference]: Start difference. First operand has 369 places, 1286 transitions, 16194 flow. Second operand 33 states and 547 transitions. [2024-01-31 17:46:44,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 1618 transitions, 22529 flow