./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_24-multiple-protecting_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 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/goblint-regression/13-privatized_24-multiple-protecting_true.i ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_24-multiple-protecting_true.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-dev-958ec4d-m [2024-02-07 14:26:23,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:26:23,471 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:26:23,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:26:23,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:26:23,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:26:23,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:26:23,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:26:23,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:26:23,504 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:26:23,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:26:23,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:26:23,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:26:23,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:26:23,507 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:26:23,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:26:23,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:26:23,507 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:26:23,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:26:23,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:26:23,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:26:23,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:26:23,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:26:23,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:26:23,509 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:26:23,509 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:26:23,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:26:23,510 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:26:23,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:26:23,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:26:23,510 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:26:23,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:26:23,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:26:23,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:26:23,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:26:23,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:26:23,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:26:23,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:26:23,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:26:23,512 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:26:23,512 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:26:23,512 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:26:23,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:26:23,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:26:23,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:26:23,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:26:23,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:26:23,715 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:26:23,716 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:26:23,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/13-privatized_24-multiple-protecting_true.yml/witness.yml [2024-02-07 14:26:23,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:26:23,809 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:26:23,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-02-07 14:26:24,738 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:26:24,969 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:26:24,973 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i [2024-02-07 14:26:24,982 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cc6e38d9/82e2e69e9d0d4cdf825451f92f837ba4/FLAG3bd108299 [2024-02-07 14:26:24,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cc6e38d9/82e2e69e9d0d4cdf825451f92f837ba4 [2024-02-07 14:26:24,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:26:24,995 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:26:25,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:26:25,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:26:25,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:26:25,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:26:23" (1/2) ... [2024-02-07 14:26:25,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2f9142 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:26:25, skipping insertion in model container [2024-02-07 14:26:25,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:26:23" (1/2) ... [2024-02-07 14:26:25,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b870da5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:26:25, skipping insertion in model container [2024-02-07 14:26:25,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:26:24" (2/2) ... [2024-02-07 14:26:25,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2f9142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25, skipping insertion in model container [2024-02-07 14:26:25,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:26:24" (2/2) ... [2024-02-07 14:26:25,019 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:26:25,056 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:26:25,057 INFO L76 edCorrectnessWitness]: Location invariant before [L688-L688] g1 == 0 [2024-02-07 14:26:25,057 INFO L76 edCorrectnessWitness]: Location invariant before [L700-L700] g2 == 0 [2024-02-07 14:26:25,058 INFO L76 edCorrectnessWitness]: Location invariant before [L689-L689] g1 == 1 [2024-02-07 14:26:25,058 INFO L76 edCorrectnessWitness]: Location invariant before [L692-L692] g1 == 0 [2024-02-07 14:26:25,058 INFO L76 edCorrectnessWitness]: Location invariant before [L699-L699] g2 == 1 [2024-02-07 14:26:25,058 INFO L76 edCorrectnessWitness]: Location invariant before [L713-L713] g1 == 0 [2024-02-07 14:26:25,058 INFO L76 edCorrectnessWitness]: Location invariant before [L691-L691] g1 == 1 [2024-02-07 14:26:25,058 INFO L76 edCorrectnessWitness]: Location invariant before [L697-L697] g2 == 1 [2024-02-07 14:26:25,058 INFO L76 edCorrectnessWitness]: Location invariant before [L720-L720] g1 == 0 [2024-02-07 14:26:25,058 INFO L76 edCorrectnessWitness]: Location invariant before [L696-L696] g2 == 0 [2024-02-07 14:26:25,059 INFO L76 edCorrectnessWitness]: Location invariant before [L709-L709] g1 == 0 [2024-02-07 14:26:25,059 INFO L76 edCorrectnessWitness]: Location invariant before [L716-L716] g2 == 0 [2024-02-07 14:26:25,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:26:25,228 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] [2024-02-07 14:26:25,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:26:25,362 INFO L203 MainTranslator]: Completed pre-run [2024-02-07 14:26:25,370 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_24-multiple-protecting_true.i[1096,1109] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:26:25,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:26:25,438 INFO L207 MainTranslator]: Completed translation [2024-02-07 14:26:25,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25 WrapperNode [2024-02-07 14:26:25,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:26:25,440 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 14:26:25,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 14:26:25,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 14:26:25,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,496 INFO L138 Inliner]: procedures = 163, calls = 58, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 111 [2024-02-07 14:26:25,496 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 14:26:25,497 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 14:26:25,497 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 14:26:25,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 14:26:25,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,524 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,537 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-02-07 14:26:25,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,562 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 14:26:25,564 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 14:26:25,564 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 14:26:25,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 14:26:25,565 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (1/1) ... [2024-02-07 14:26:25,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:26:25,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 14:26:25,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 14:26:25,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 14:26:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 14:26:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 14:26:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 14:26:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 14:26:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 14:26:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 14:26:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 14:26:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 14:26:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 14:26:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 14:26:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-07 14:26:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 14:26:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 14:26:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-07 14:26:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-07 14:26:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 14:26:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 14:26:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 14:26:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 14:26:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 14:26:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 14:26:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-07 14:26:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 14:26:25,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 14:26:25,628 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 14:26:25,773 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 14:26:25,775 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 14:26:25,956 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 14:26:25,956 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 14:26:26,070 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 14:26:26,071 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-07 14:26:26,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:26:26 BoogieIcfgContainer [2024-02-07 14:26:26,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 14:26:26,075 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 14:26:26,075 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 14:26:26,078 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 14:26:26,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:26:23" (1/4) ... [2024-02-07 14:26:26,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a4d892 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 02:26:26, skipping insertion in model container [2024-02-07 14:26:26,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 02:26:24" (2/4) ... [2024-02-07 14:26:26,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a4d892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:26:26, skipping insertion in model container [2024-02-07 14:26:26,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:26:25" (3/4) ... [2024-02-07 14:26:26,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a4d892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 02:26:26, skipping insertion in model container [2024-02-07 14:26:26,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 02:26:26" (4/4) ... [2024-02-07 14:26:26,081 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_24-multiple-protecting_true.i [2024-02-07 14:26:26,093 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 14:26:26,094 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-02-07 14:26:26,094 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 14:26:26,132 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-02-07 14:26:26,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 99 transitions, 205 flow [2024-02-07 14:26:26,211 INFO L124 PetriNetUnfolderBase]: 4/98 cut-off events. [2024-02-07 14:26:26,211 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-07 14:26:26,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 4/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 142 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2024-02-07 14:26:26,215 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 99 transitions, 205 flow [2024-02-07 14:26:26,219 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 96 transitions, 195 flow [2024-02-07 14:26:26,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 14:26:26,230 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;@69c2912b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 14:26:26,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-02-07 14:26:26,238 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 14:26:26,238 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-02-07 14:26:26,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:26:26,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:26,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:26,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-07 14:26:26,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:26,243 INFO L85 PathProgramCache]: Analyzing trace with hash -246856284, now seen corresponding path program 1 times [2024-02-07 14:26:26,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:26,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600529874] [2024-02-07 14:26:26,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:26,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:26,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:26,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:26,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600529874] [2024-02-07 14:26:26,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600529874] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:26,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:26,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:26:26,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063060831] [2024-02-07 14:26:26,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:26,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:26:26,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:26,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:26:26,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:26:26,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 99 [2024-02-07 14:26:26,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 96 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:26,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:26,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 99 [2024-02-07 14:26:26,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:26,832 INFO L124 PetriNetUnfolderBase]: 461/1654 cut-off events. [2024-02-07 14:26:26,832 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 14:26:26,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2708 conditions, 1654 events. 461/1654 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11490 event pairs, 339 based on Foata normal form. 133/1682 useless extension candidates. Maximal degree in co-relation 2699. Up to 860 conditions per place. [2024-02-07 14:26:26,844 INFO L140 encePairwiseOnDemand]: 83/99 looper letters, 64 selfloop transitions, 6 changer transitions 0/114 dead transitions. [2024-02-07 14:26:26,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 114 transitions, 371 flow [2024-02-07 14:26:26,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:26:26,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:26:26,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-02-07 14:26:26,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2024-02-07 14:26:26,857 INFO L175 Difference]: Start difference. First operand has 96 places, 96 transitions, 195 flow. Second operand 3 states and 220 transitions. [2024-02-07 14:26:26,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 114 transitions, 371 flow [2024-02-07 14:26:26,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 114 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:26:26,864 INFO L231 Difference]: Finished difference. Result has 97 places, 93 transitions, 226 flow [2024-02-07 14:26:26,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=97, PETRI_TRANSITIONS=93} [2024-02-07 14:26:26,869 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 1 predicate places. [2024-02-07 14:26:26,870 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 93 transitions, 226 flow [2024-02-07 14:26:26,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:26,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:26,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:26,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 14:26:26,871 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-07 14:26:26,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:26,872 INFO L85 PathProgramCache]: Analyzing trace with hash 937390292, now seen corresponding path program 1 times [2024-02-07 14:26:26,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:26,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734496422] [2024-02-07 14:26:26,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:26,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:26,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:26,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:26,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734496422] [2024-02-07 14:26:26,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734496422] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:26,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:26,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:26:26,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984663021] [2024-02-07 14:26:26,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:26,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:26:26,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:26,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:26:26,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:26:27,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 99 [2024-02-07 14:26:27,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 93 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:27,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:27,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 99 [2024-02-07 14:26:27,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:27,259 INFO L124 PetriNetUnfolderBase]: 415/1398 cut-off events. [2024-02-07 14:26:27,259 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-02-07 14:26:27,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2517 conditions, 1398 events. 415/1398 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 8992 event pairs, 339 based on Foata normal form. 64/1385 useless extension candidates. Maximal degree in co-relation 2505. Up to 738 conditions per place. [2024-02-07 14:26:27,271 INFO L140 encePairwiseOnDemand]: 91/99 looper letters, 62 selfloop transitions, 3 changer transitions 0/107 dead transitions. [2024-02-07 14:26:27,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 107 transitions, 372 flow [2024-02-07 14:26:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:26:27,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:26:27,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 242 transitions. [2024-02-07 14:26:27,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-02-07 14:26:27,276 INFO L175 Difference]: Start difference. First operand has 97 places, 93 transitions, 226 flow. Second operand 4 states and 242 transitions. [2024-02-07 14:26:27,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 107 transitions, 372 flow [2024-02-07 14:26:27,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 107 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:26:27,280 INFO L231 Difference]: Finished difference. Result has 96 places, 88 transitions, 204 flow [2024-02-07 14:26:27,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=96, PETRI_TRANSITIONS=88} [2024-02-07 14:26:27,281 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2024-02-07 14:26:27,282 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 88 transitions, 204 flow [2024-02-07 14:26:27,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:27,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:27,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:27,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 14:26:27,282 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-07 14:26:27,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:27,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1138266756, now seen corresponding path program 1 times [2024-02-07 14:26:27,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:27,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173453820] [2024-02-07 14:26:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:27,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:27,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:27,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173453820] [2024-02-07 14:26:27,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173453820] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:27,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:27,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:26:27,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012592063] [2024-02-07 14:26:27,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:27,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:26:27,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:27,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:26:27,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:26:27,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 99 [2024-02-07 14:26:27,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 88 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:27,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:27,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 99 [2024-02-07 14:26:27,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:27,615 INFO L124 PetriNetUnfolderBase]: 491/1418 cut-off events. [2024-02-07 14:26:27,616 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2024-02-07 14:26:27,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2713 conditions, 1418 events. 491/1418 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 8585 event pairs, 279 based on Foata normal form. 0/1384 useless extension candidates. Maximal degree in co-relation 2701. Up to 614 conditions per place. [2024-02-07 14:26:27,620 INFO L140 encePairwiseOnDemand]: 84/99 looper letters, 74 selfloop transitions, 18 changer transitions 0/122 dead transitions. [2024-02-07 14:26:27,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 122 transitions, 466 flow [2024-02-07 14:26:27,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-07 14:26:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-07 14:26:27,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 285 transitions. [2024-02-07 14:26:27,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-02-07 14:26:27,622 INFO L175 Difference]: Start difference. First operand has 96 places, 88 transitions, 204 flow. Second operand 5 states and 285 transitions. [2024-02-07 14:26:27,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 122 transitions, 466 flow [2024-02-07 14:26:27,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 122 transitions, 456 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-07 14:26:27,627 INFO L231 Difference]: Finished difference. Result has 89 places, 87 transitions, 236 flow [2024-02-07 14:26:27,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=89, PETRI_TRANSITIONS=87} [2024-02-07 14:26:27,628 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -7 predicate places. [2024-02-07 14:26:27,628 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 87 transitions, 236 flow [2024-02-07 14:26:27,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:27,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:27,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:27,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 14:26:27,629 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-07 14:26:27,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:27,629 INFO L85 PathProgramCache]: Analyzing trace with hash 161128530, now seen corresponding path program 1 times [2024-02-07 14:26:27,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:27,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947701997] [2024-02-07 14:26:27,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:27,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:27,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:27,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947701997] [2024-02-07 14:26:27,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947701997] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:27,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:27,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-07 14:26:27,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313521387] [2024-02-07 14:26:27,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:27,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:26:27,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:27,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:26:27,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:26:27,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 99 [2024-02-07 14:26:27,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 87 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:27,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:27,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 99 [2024-02-07 14:26:27,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:27,921 INFO L124 PetriNetUnfolderBase]: 274/910 cut-off events. [2024-02-07 14:26:27,921 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2024-02-07 14:26:27,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1772 conditions, 910 events. 274/910 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5273 event pairs, 81 based on Foata normal form. 21/918 useless extension candidates. Maximal degree in co-relation 1760. Up to 370 conditions per place. [2024-02-07 14:26:27,925 INFO L140 encePairwiseOnDemand]: 92/99 looper letters, 70 selfloop transitions, 7 changer transitions 4/118 dead transitions. [2024-02-07 14:26:27,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 118 transitions, 478 flow [2024-02-07 14:26:27,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:26:27,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:26:27,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 288 transitions. [2024-02-07 14:26:27,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2024-02-07 14:26:27,926 INFO L175 Difference]: Start difference. First operand has 89 places, 87 transitions, 236 flow. Second operand 4 states and 288 transitions. [2024-02-07 14:26:27,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 118 transitions, 478 flow [2024-02-07 14:26:27,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 118 transitions, 459 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-02-07 14:26:27,931 INFO L231 Difference]: Finished difference. Result has 90 places, 84 transitions, 233 flow [2024-02-07 14:26:27,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=90, PETRI_TRANSITIONS=84} [2024-02-07 14:26:27,933 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -6 predicate places. [2024-02-07 14:26:27,933 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 84 transitions, 233 flow [2024-02-07 14:26:27,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:27,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:27,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:27,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-07 14:26:27,934 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-07 14:26:27,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:27,934 INFO L85 PathProgramCache]: Analyzing trace with hash -81200722, now seen corresponding path program 1 times [2024-02-07 14:26:27,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:27,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556002667] [2024-02-07 14:26:27,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:27,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:27,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:27,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:27,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556002667] [2024-02-07 14:26:27,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556002667] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:27,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:27,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-07 14:26:27,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470143772] [2024-02-07 14:26:27,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:27,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-07 14:26:27,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:27,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-07 14:26:27,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-07 14:26:27,999 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 99 [2024-02-07 14:26:27,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:27,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:28,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 99 [2024-02-07 14:26:28,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:28,130 INFO L124 PetriNetUnfolderBase]: 335/1095 cut-off events. [2024-02-07 14:26:28,131 INFO L125 PetriNetUnfolderBase]: For 309/309 co-relation queries the response was YES. [2024-02-07 14:26:28,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2238 conditions, 1095 events. 335/1095 cut-off events. For 309/309 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6625 event pairs, 225 based on Foata normal form. 31/1113 useless extension candidates. Maximal degree in co-relation 2224. Up to 615 conditions per place. [2024-02-07 14:26:28,135 INFO L140 encePairwiseOnDemand]: 91/99 looper letters, 70 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2024-02-07 14:26:28,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 106 transitions, 449 flow [2024-02-07 14:26:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-07 14:26:28,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-07 14:26:28,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2024-02-07 14:26:28,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7205387205387206 [2024-02-07 14:26:28,136 INFO L175 Difference]: Start difference. First operand has 90 places, 84 transitions, 233 flow. Second operand 3 states and 214 transitions. [2024-02-07 14:26:28,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 106 transitions, 449 flow [2024-02-07 14:26:28,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 106 transitions, 448 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-07 14:26:28,139 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 254 flow [2024-02-07 14:26:28,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2024-02-07 14:26:28,140 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -5 predicate places. [2024-02-07 14:26:28,140 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 254 flow [2024-02-07 14:26:28,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:28,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:28,140 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] [2024-02-07 14:26:28,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-07 14:26:28,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-07 14:26:28,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:28,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1777745438, now seen corresponding path program 1 times [2024-02-07 14:26:28,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:28,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302962507] [2024-02-07 14:26:28,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:28,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:28,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:28,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:28,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302962507] [2024-02-07 14:26:28,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302962507] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:28,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:28,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 14:26:28,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718983113] [2024-02-07 14:26:28,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:28,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 14:26:28,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:28,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 14:26:28,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 14:26:28,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 99 [2024-02-07 14:26:28,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:28,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:28,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 99 [2024-02-07 14:26:28,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:28,349 INFO L124 PetriNetUnfolderBase]: 315/963 cut-off events. [2024-02-07 14:26:28,349 INFO L125 PetriNetUnfolderBase]: For 468/468 co-relation queries the response was YES. [2024-02-07 14:26:28,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2159 conditions, 963 events. 315/963 cut-off events. For 468/468 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5460 event pairs, 225 based on Foata normal form. 54/1004 useless extension candidates. Maximal degree in co-relation 2142. Up to 555 conditions per place. [2024-02-07 14:26:28,352 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 49 selfloop transitions, 3 changer transitions 21/101 dead transitions. [2024-02-07 14:26:28,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 101 transitions, 448 flow [2024-02-07 14:26:28,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:26:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:26:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 248 transitions. [2024-02-07 14:26:28,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6262626262626263 [2024-02-07 14:26:28,353 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 254 flow. Second operand 4 states and 248 transitions. [2024-02-07 14:26:28,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 101 transitions, 448 flow [2024-02-07 14:26:28,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 101 transitions, 442 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-07 14:26:28,356 INFO L231 Difference]: Finished difference. Result has 90 places, 68 transitions, 199 flow [2024-02-07 14:26:28,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=90, PETRI_TRANSITIONS=68} [2024-02-07 14:26:28,358 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -6 predicate places. [2024-02-07 14:26:28,358 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 68 transitions, 199 flow [2024-02-07 14:26:28,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:28,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:28,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:28,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-07 14:26:28,359 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-07 14:26:28,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2111793981, now seen corresponding path program 1 times [2024-02-07 14:26:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:28,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601906999] [2024-02-07 14:26:28,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:28,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:28,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:28,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:28,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601906999] [2024-02-07 14:26:28,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601906999] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:28,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:28,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 14:26:28,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367488083] [2024-02-07 14:26:28,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:28,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-07 14:26:28,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:28,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-07 14:26:28,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-07 14:26:28,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 99 [2024-02-07 14:26:28,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 68 transitions, 199 flow. Second operand has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:28,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:28,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 99 [2024-02-07 14:26:28,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:28,617 INFO L124 PetriNetUnfolderBase]: 115/520 cut-off events. [2024-02-07 14:26:28,617 INFO L125 PetriNetUnfolderBase]: For 218/218 co-relation queries the response was YES. [2024-02-07 14:26:28,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 520 events. 115/520 cut-off events. For 218/218 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2456 event pairs, 45 based on Foata normal form. 40/553 useless extension candidates. Maximal degree in co-relation 1084. Up to 187 conditions per place. [2024-02-07 14:26:28,618 INFO L140 encePairwiseOnDemand]: 81/99 looper letters, 21 selfloop transitions, 14 changer transitions 28/91 dead transitions. [2024-02-07 14:26:28,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 91 transitions, 404 flow [2024-02-07 14:26:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:26:28,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:26:28,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 274 transitions. [2024-02-07 14:26:28,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6919191919191919 [2024-02-07 14:26:28,619 INFO L175 Difference]: Start difference. First operand has 90 places, 68 transitions, 199 flow. Second operand 4 states and 274 transitions. [2024-02-07 14:26:28,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 91 transitions, 404 flow [2024-02-07 14:26:28,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 91 transitions, 360 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-02-07 14:26:28,621 INFO L231 Difference]: Finished difference. Result has 80 places, 59 transitions, 189 flow [2024-02-07 14:26:28,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=80, PETRI_TRANSITIONS=59} [2024-02-07 14:26:28,622 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -16 predicate places. [2024-02-07 14:26:28,622 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 59 transitions, 189 flow [2024-02-07 14:26:28,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:28,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:28,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:28,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-07 14:26:28,623 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-07 14:26:28,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:28,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1003832856, now seen corresponding path program 1 times [2024-02-07 14:26:28,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:28,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418300215] [2024-02-07 14:26:28,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:28,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:28,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:28,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:28,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418300215] [2024-02-07 14:26:28,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418300215] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:28,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:28,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 14:26:28,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393464478] [2024-02-07 14:26:28,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:28,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-07 14:26:28,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:28,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-07 14:26:28,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-07 14:26:28,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 99 [2024-02-07 14:26:28,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 59 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:28,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:28,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 99 [2024-02-07 14:26:28,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:28,944 INFO L124 PetriNetUnfolderBase]: 37/222 cut-off events. [2024-02-07 14:26:28,944 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-02-07 14:26:28,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 222 events. 37/222 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 656 event pairs, 8 based on Foata normal form. 2/220 useless extension candidates. Maximal degree in co-relation 468. Up to 120 conditions per place. [2024-02-07 14:26:28,945 INFO L140 encePairwiseOnDemand]: 95/99 looper letters, 27 selfloop transitions, 4 changer transitions 9/63 dead transitions. [2024-02-07 14:26:28,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 63 transitions, 275 flow [2024-02-07 14:26:28,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:26:28,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:26:28,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 245 transitions. [2024-02-07 14:26:28,946 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6186868686868687 [2024-02-07 14:26:28,946 INFO L175 Difference]: Start difference. First operand has 80 places, 59 transitions, 189 flow. Second operand 4 states and 245 transitions. [2024-02-07 14:26:28,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 63 transitions, 275 flow [2024-02-07 14:26:28,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 63 transitions, 248 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-02-07 14:26:28,948 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 141 flow [2024-02-07 14:26:28,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=141, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2024-02-07 14:26:28,950 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -27 predicate places. [2024-02-07 14:26:28,950 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 141 flow [2024-02-07 14:26:28,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:28,951 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 14:26:28,951 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:28,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-07 14:26:28,951 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 22 more)] === [2024-02-07 14:26:28,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 14:26:28,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1048607339, now seen corresponding path program 1 times [2024-02-07 14:26:28,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 14:26:28,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337068158] [2024-02-07 14:26:28,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 14:26:28,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 14:26:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 14:26:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 14:26:29,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 14:26:29,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337068158] [2024-02-07 14:26:29,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337068158] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 14:26:29,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 14:26:29,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-02-07 14:26:29,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795819996] [2024-02-07 14:26:29,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 14:26:29,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-02-07 14:26:29,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 14:26:29,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-02-07 14:26:29,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-02-07 14:26:29,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 99 [2024-02-07 14:26:29,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 141 flow. Second operand has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:29,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 14:26:29,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 99 [2024-02-07 14:26:29,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 14:26:29,191 INFO L124 PetriNetUnfolderBase]: 21/132 cut-off events. [2024-02-07 14:26:29,191 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-02-07 14:26:29,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 132 events. 21/132 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 327 event pairs, 8 based on Foata normal form. 10/134 useless extension candidates. Maximal degree in co-relation 256. Up to 47 conditions per place. [2024-02-07 14:26:29,191 INFO L140 encePairwiseOnDemand]: 96/99 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2024-02-07 14:26:29,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 220 flow [2024-02-07 14:26:29,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 14:26:29,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 14:26:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 242 transitions. [2024-02-07 14:26:29,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-02-07 14:26:29,193 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 141 flow. Second operand 4 states and 242 transitions. [2024-02-07 14:26:29,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 220 flow [2024-02-07 14:26:29,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 193 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-02-07 14:26:29,194 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2024-02-07 14:26:29,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2024-02-07 14:26:29,195 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -40 predicate places. [2024-02-07 14:26:29,196 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2024-02-07 14:26:29,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 14:26:29,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 25 remaining) [2024-02-07 14:26:29,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (23 of 25 remaining) [2024-02-07 14:26:29,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 25 remaining) [2024-02-07 14:26:29,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (21 of 25 remaining) [2024-02-07 14:26:29,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 25 remaining) [2024-02-07 14:26:29,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (19 of 25 remaining) [2024-02-07 14:26:29,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 25 remaining) [2024-02-07 14:26:29,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (17 of 25 remaining) [2024-02-07 14:26:29,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 25 remaining) [2024-02-07 14:26:29,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 25 remaining) [2024-02-07 14:26:29,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 25 remaining) [2024-02-07 14:26:29,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 25 remaining) [2024-02-07 14:26:29,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 25 remaining) [2024-02-07 14:26:29,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 25 remaining) [2024-02-07 14:26:29,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 25 remaining) [2024-02-07 14:26:29,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 25 remaining) [2024-02-07 14:26:29,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 25 remaining) [2024-02-07 14:26:29,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 25 remaining) [2024-02-07 14:26:29,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 25 remaining) [2024-02-07 14:26:29,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 25 remaining) [2024-02-07 14:26:29,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 25 remaining) [2024-02-07 14:26:29,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 25 remaining) [2024-02-07 14:26:29,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 25 remaining) [2024-02-07 14:26:29,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 25 remaining) [2024-02-07 14:26:29,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 25 remaining) [2024-02-07 14:26:29,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-07 14:26:29,204 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 14:26:29,208 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 14:26:29,208 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 14:26:29,212 INFO L503 ceAbstractionStarter]: Automizer considered 12 witness invariants [2024-02-07 14:26:29,212 INFO L504 ceAbstractionStarter]: WitnessConsidered=12 [2024-02-07 14:26:29,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 02:26:29 BasicIcfg [2024-02-07 14:26:29,213 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 14:26:29,214 INFO L158 Benchmark]: Toolchain (without parser) took 4219.24ms. Allocated memory was 138.4MB in the beginning and 264.2MB in the end (delta: 125.8MB). Free memory was 109.1MB in the beginning and 166.6MB in the end (delta: -57.5MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2024-02-07 14:26:29,214 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:26:29,214 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 138.4MB. Free memory was 110.0MB in the beginning and 109.9MB in the end (delta: 120.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:26:29,214 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.22ms. Allocated memory was 138.4MB in the beginning and 195.0MB in the end (delta: 56.6MB). Free memory was 108.9MB in the beginning and 143.7MB in the end (delta: -34.9MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-02-07 14:26:29,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.14ms. Allocated memory is still 195.0MB. Free memory was 143.7MB in the beginning and 141.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 14:26:29,216 INFO L158 Benchmark]: Boogie Preprocessor took 66.42ms. Allocated memory is still 195.0MB. Free memory was 141.6MB in the beginning and 138.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-07 14:26:29,216 INFO L158 Benchmark]: RCFGBuilder took 508.24ms. Allocated memory is still 195.0MB. Free memory was 138.5MB in the beginning and 95.5MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-02-07 14:26:29,217 INFO L158 Benchmark]: TraceAbstraction took 3138.26ms. Allocated memory was 195.0MB in the beginning and 264.2MB in the end (delta: 69.2MB). Free memory was 95.5MB in the beginning and 166.6MB in the end (delta: -71.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:26:29,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 138.4MB. Free memory was 110.0MB in the beginning and 109.9MB in the end (delta: 120.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.22ms. Allocated memory was 138.4MB in the beginning and 195.0MB in the end (delta: 56.6MB). Free memory was 108.9MB in the beginning and 143.7MB in the end (delta: -34.9MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.14ms. Allocated memory is still 195.0MB. Free memory was 143.7MB in the beginning and 141.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.42ms. Allocated memory is still 195.0MB. Free memory was 141.6MB in the beginning and 138.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 508.24ms. Allocated memory is still 195.0MB. Free memory was 138.5MB in the beginning and 95.5MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3138.26ms. Allocated memory was 195.0MB in the beginning and 264.2MB in the end (delta: 69.2MB). Free memory was 95.5MB in the beginning and 166.6MB in the end (delta: -71.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 709]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 713]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 716]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 720]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 696]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 697]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 139 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 445 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 403 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 136 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 856 IncrementalHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 136 mSolverCounterUnsat, 11 mSDtfsCounter, 856 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=5, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 209 ConstructedInterpolants, 0 QuantifiedInterpolants, 1365 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-07 14:26:29,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE