./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/queue.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/queue.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread/queue.i ./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/queue.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-tmp.fs.goblint-validation-7724a2d-m [2024-06-28 01:14:11,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-28 01:14:11,949 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-28 01:14:11,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-28 01:14:11,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-28 01:14:11,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-28 01:14:11,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-28 01:14:11,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-28 01:14:11,980 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-28 01:14:11,984 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-28 01:14:11,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-28 01:14:11,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-28 01:14:11,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-28 01:14:11,986 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-28 01:14:11,986 INFO L153 SettingsManager]: * Use SBE=true [2024-06-28 01:14:11,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-28 01:14:11,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-28 01:14:11,987 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-28 01:14:11,987 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-28 01:14:11,988 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-28 01:14:11,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-28 01:14:11,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-28 01:14:11,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-28 01:14:11,989 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-28 01:14:11,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-28 01:14:11,989 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-28 01:14:11,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-28 01:14:11,989 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-28 01:14:11,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-28 01:14:11,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-28 01:14:11,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-28 01:14:11,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-28 01:14:11,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:14:11,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-28 01:14:11,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-28 01:14:11,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-28 01:14:11,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-28 01:14:11,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-28 01:14:11,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-28 01:14:11,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-28 01:14:11,993 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-28 01:14:11,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-28 01:14:11,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-28 01:14:11,994 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-06-28 01:14:12,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-28 01:14:12,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-28 01:14:12,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-28 01:14:12,253 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-28 01:14:12,253 INFO L274 PluginConnector]: CDTParser initialized [2024-06-28 01:14:12,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue.i [2024-06-28 01:14:13,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-28 01:14:13,711 INFO L384 CDTParser]: Found 1 translation units. [2024-06-28 01:14:13,712 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.i [2024-06-28 01:14:13,735 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f68b6778/c5d5a44061d94979be69943b6180f508/FLAGeb4835e18 [2024-06-28 01:14:13,750 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f68b6778/c5d5a44061d94979be69943b6180f508 [2024-06-28 01:14:13,752 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-28 01:14:13,752 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-28 01:14:13,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-06-19_11-23-25.files/mutex-meet-nonrel/queue.yml/witness.yml [2024-06-28 01:14:13,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-28 01:14:13,843 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-28 01:14:13,843 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-28 01:14:13,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-28 01:14:13,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-28 01:14:13,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:14:13" (1/2) ... [2024-06-28 01:14:13,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf08892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:14:13, skipping insertion in model container [2024-06-28 01:14:13,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.06 01:14:13" (1/2) ... [2024-06-28 01:14:13,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e401430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.06 01:14:13, skipping insertion in model container [2024-06-28 01:14:13,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:14:13" (2/2) ... [2024-06-28 01:14:13,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cf08892 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:13, skipping insertion in model container [2024-06-28 01:14:13,852 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:14:13" (2/2) ... [2024-06-28 01:14:13,852 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-28 01:14:13,895 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-28 01:14:13,896 INFO L97 edCorrectnessWitness]: Location invariant before [L1065-L1065] (! multithreaded || (m_locked || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 20) && queue.tail <= 20))) && (! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 20) && queue.tail <= 20)) [2024-06-28 01:14:13,896 INFO L97 edCorrectnessWitness]: Location invariant before [L1064-L1064] (! multithreaded || (m_locked || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 20) && queue.tail <= 20))) && (! multithreaded || (((0 <= queue.head && 0 <= queue.tail) && queue.head <= 20) && queue.tail <= 20)) [2024-06-28 01:14:13,896 INFO L103 edCorrectnessWitness]: ghost_variable m_locked = 0 [2024-06-28 01:14:13,897 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-28 01:14:13,897 INFO L106 edCorrectnessWitness]: ghost_update [L1017-L1017] m_locked = 0; [2024-06-28 01:14:13,897 INFO L106 edCorrectnessWitness]: ghost_update [L1063-L1063] multithreaded = 1; [2024-06-28 01:14:13,897 INFO L106 edCorrectnessWitness]: ghost_update [L1039-L1039] m_locked = 1; [2024-06-28 01:14:13,897 INFO L106 edCorrectnessWitness]: ghost_update [L1029-L1029] m_locked = 0; [2024-06-28 01:14:13,897 INFO L106 edCorrectnessWitness]: ghost_update [L1048-L1048] m_locked = 0; [2024-06-28 01:14:13,897 INFO L106 edCorrectnessWitness]: ghost_update [L1008-L1008] m_locked = 1; [2024-06-28 01:14:13,898 INFO L106 edCorrectnessWitness]: ghost_update [L1020-L1020] m_locked = 1; [2024-06-28 01:14:13,936 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-28 01:14:14,309 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.i[43284,43297] [2024-06-28 01:14:14,318 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.i[43491,43504] [2024-06-28 01:14:14,320 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.i[43772,43785] [2024-06-28 01:14:14,323 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:14:14,330 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:14:14,394 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.i[43284,43297] Start Parsing Local [2024-06-28 01:14:14,395 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.i[43491,43504] Start Parsing Local [2024-06-28 01:14:14,397 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue.i[43772,43785] Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-28 01:14:14,423 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-28 01:14:14,472 INFO L206 MainTranslator]: Completed translation [2024-06-28 01:14:14,473 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14 WrapperNode [2024-06-28 01:14:14,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-28 01:14:14,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-28 01:14:14,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-28 01:14:14,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-28 01:14:14,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,608 INFO L138 Inliner]: procedures = 274, calls = 429, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 1718 [2024-06-28 01:14:14,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-28 01:14:14,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-28 01:14:14,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-28 01:14:14,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-28 01:14:14,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,627 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,655 INFO L175 MemorySlicer]: Split 419 memory accesses to 5 slices as follows [2, 8, 5, 4, 400]. 95 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 8, 5, 0, 0]. The 18 writes are split as follows [0, 0, 0, 3, 15]. [2024-06-28 01:14:14,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,681 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-28 01:14:14,699 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-28 01:14:14,699 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-28 01:14:14,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-28 01:14:14,711 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (1/1) ... [2024-06-28 01:14:14,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-28 01:14:14,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:14:14,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-28 01:14:14,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-28 01:14:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-06-28 01:14:14,791 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-06-28 01:14:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-06-28 01:14:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-06-28 01:14:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-28 01:14:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-28 01:14:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-28 01:14:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-06-28 01:14:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-06-28 01:14:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-06-28 01:14:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-28 01:14:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-28 01:14:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-06-28 01:14:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-06-28 01:14:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-06-28 01:14:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-28 01:14:14,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-28 01:14:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-28 01:14:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-28 01:14:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-28 01:14:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-28 01:14:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-06-28 01:14:14,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-28 01:14:14,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-28 01:14:14,798 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-28 01:14:15,025 INFO L244 CfgBuilder]: Building ICFG [2024-06-28 01:14:15,027 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-28 01:14:16,057 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-28 01:14:16,057 INFO L293 CfgBuilder]: Performing block encoding [2024-06-28 01:14:21,176 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-28 01:14:21,177 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-06-28 01:14:21,177 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:14:21 BoogieIcfgContainer [2024-06-28 01:14:21,177 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-28 01:14:21,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-28 01:14:21,180 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-28 01:14:21,182 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-28 01:14:21,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.06 01:14:13" (1/4) ... [2024-06-28 01:14:21,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db556cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.06 01:14:21, skipping insertion in model container [2024-06-28 01:14:21,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 28.06 01:14:13" (2/4) ... [2024-06-28 01:14:21,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db556cb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:14:21, skipping insertion in model container [2024-06-28 01:14:21,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 28.06 01:14:14" (3/4) ... [2024-06-28 01:14:21,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db556cb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 28.06 01:14:21, skipping insertion in model container [2024-06-28 01:14:21,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.06 01:14:21" (4/4) ... [2024-06-28 01:14:21,187 INFO L112 eAbstractionObserver]: Analyzing ICFG queue.i [2024-06-28 01:14:21,201 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-28 01:14:21,202 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-06-28 01:14:21,202 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-28 01:14:21,251 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-06-28 01:14:21,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 53 transitions, 120 flow [2024-06-28 01:14:21,321 INFO L124 PetriNetUnfolderBase]: 7/51 cut-off events. [2024-06-28 01:14:21,321 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-06-28 01:14:21,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 7/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 103 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-06-28 01:14:21,418 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 53 transitions, 120 flow [2024-06-28 01:14:21,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 49 transitions, 107 flow [2024-06-28 01:14:21,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-28 01:14:21,440 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;@155c3aaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-28 01:14:21,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-06-28 01:14:21,445 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-28 01:14:21,445 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2024-06-28 01:14:21,445 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-28 01:14:21,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:21,446 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-06-28 01:14:21,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:21,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:21,450 INFO L85 PathProgramCache]: Analyzing trace with hash 3559384, now seen corresponding path program 1 times [2024-06-28 01:14:21,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:21,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671130220] [2024-06-28 01:14:21,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:21,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:21,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:21,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671130220] [2024-06-28 01:14:21,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671130220] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:21,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:21,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:14:21,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387881218] [2024-06-28 01:14:21,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:21,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-06-28 01:14:21,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:21,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-06-28 01:14:21,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-06-28 01:14:21,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:21,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 49 transitions, 107 flow. Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:21,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:21,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:21,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:23,171 INFO L124 PetriNetUnfolderBase]: 966/1653 cut-off events. [2024-06-28 01:14:23,171 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-06-28 01:14:23,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3201 conditions, 1653 events. 966/1653 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8185 event pairs, 778 based on Foata normal form. 93/1444 useless extension candidates. Maximal degree in co-relation 3102. Up to 1508 conditions per place. [2024-06-28 01:14:23,184 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 36 selfloop transitions, 0 changer transitions 0/44 dead transitions. [2024-06-28 01:14:23,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 44 transitions, 169 flow [2024-06-28 01:14:23,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-06-28 01:14:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-06-28 01:14:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 61 transitions. [2024-06-28 01:14:23,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5754716981132075 [2024-06-28 01:14:23,195 INFO L175 Difference]: Start difference. First operand has 49 places, 49 transitions, 107 flow. Second operand 2 states and 61 transitions. [2024-06-28 01:14:23,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 44 transitions, 169 flow [2024-06-28 01:14:23,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 44 transitions, 164 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-28 01:14:23,205 INFO L231 Difference]: Finished difference. Result has 45 places, 44 transitions, 92 flow [2024-06-28 01:14:23,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=45, PETRI_TRANSITIONS=44} [2024-06-28 01:14:23,210 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -4 predicate places. [2024-06-28 01:14:23,210 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 44 transitions, 92 flow [2024-06-28 01:14:23,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:23,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:23,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-28 01:14:23,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-28 01:14:23,213 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:23,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1331483815, now seen corresponding path program 1 times [2024-06-28 01:14:23,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:23,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472054532] [2024-06-28 01:14:23,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:23,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:24,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:24,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472054532] [2024-06-28 01:14:24,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472054532] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:24,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:24,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-28 01:14:24,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566968423] [2024-06-28 01:14:24,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:24,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:14:24,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:24,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:14:24,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:14:24,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:24,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 44 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:24,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:24,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:24,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:25,245 INFO L124 PetriNetUnfolderBase]: 1058/1792 cut-off events. [2024-06-28 01:14:25,245 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-06-28 01:14:25,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3451 conditions, 1792 events. 1058/1792 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 9105 event pairs, 327 based on Foata normal form. 0/1517 useless extension candidates. Maximal degree in co-relation 3448. Up to 1502 conditions per place. [2024-06-28 01:14:25,252 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 48 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2024-06-28 01:14:25,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 59 transitions, 226 flow [2024-06-28 01:14:25,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:14:25,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:14:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-06-28 01:14:25,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5408805031446541 [2024-06-28 01:14:25,253 INFO L175 Difference]: Start difference. First operand has 45 places, 44 transitions, 92 flow. Second operand 3 states and 86 transitions. [2024-06-28 01:14:25,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 59 transitions, 226 flow [2024-06-28 01:14:25,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 59 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-06-28 01:14:25,255 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 113 flow [2024-06-28 01:14:25,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2024-06-28 01:14:25,256 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2024-06-28 01:14:25,256 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 113 flow [2024-06-28 01:14:25,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:25,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:25,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:25,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-28 01:14:25,257 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:25,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:25,258 INFO L85 PathProgramCache]: Analyzing trace with hash 2087690479, now seen corresponding path program 1 times [2024-06-28 01:14:25,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:25,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300415009] [2024-06-28 01:14:25,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:25,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:26,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:26,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300415009] [2024-06-28 01:14:26,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300415009] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:26,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:26,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:14:26,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799174358] [2024-06-28 01:14:26,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:26,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-28 01:14:26,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:26,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-28 01:14:26,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-28 01:14:26,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:26,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:26,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:26,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:26,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:26,857 INFO L124 PetriNetUnfolderBase]: 1276/2201 cut-off events. [2024-06-28 01:14:26,857 INFO L125 PetriNetUnfolderBase]: For 286/291 co-relation queries the response was YES. [2024-06-28 01:14:26,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4466 conditions, 2201 events. 1276/2201 cut-off events. For 286/291 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 11772 event pairs, 173 based on Foata normal form. 52/2083 useless extension candidates. Maximal degree in co-relation 4461. Up to 1394 conditions per place. [2024-06-28 01:14:26,867 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 69 selfloop transitions, 5 changer transitions 0/82 dead transitions. [2024-06-28 01:14:26,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 82 transitions, 340 flow [2024-06-28 01:14:26,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-28 01:14:26,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-28 01:14:26,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2024-06-28 01:14:26,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5660377358490566 [2024-06-28 01:14:26,869 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 113 flow. Second operand 4 states and 120 transitions. [2024-06-28 01:14:26,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 82 transitions, 340 flow [2024-06-28 01:14:26,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 82 transitions, 337 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:14:26,871 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 137 flow [2024-06-28 01:14:26,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-06-28 01:14:26,871 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2024-06-28 01:14:26,872 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 137 flow [2024-06-28 01:14:26,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:26,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:26,872 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:26,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-28 01:14:26,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:26,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:26,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2124662125, now seen corresponding path program 1 times [2024-06-28 01:14:26,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:26,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659897370] [2024-06-28 01:14:26,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:26,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:26,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:26,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:26,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:26,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659897370] [2024-06-28 01:14:26,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659897370] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:26,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:26,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:14:26,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654088736] [2024-06-28 01:14:26,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:26,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:14:26,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:26,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:14:26,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:14:26,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:26,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 137 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:26,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:26,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:26,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:27,600 INFO L124 PetriNetUnfolderBase]: 1225/2156 cut-off events. [2024-06-28 01:14:27,601 INFO L125 PetriNetUnfolderBase]: For 732/742 co-relation queries the response was YES. [2024-06-28 01:14:27,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4671 conditions, 2156 events. 1225/2156 cut-off events. For 732/742 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 11877 event pairs, 869 based on Foata normal form. 8/2030 useless extension candidates. Maximal degree in co-relation 4665. Up to 1755 conditions per place. [2024-06-28 01:14:27,611 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 53 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2024-06-28 01:14:27,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 64 transitions, 296 flow [2024-06-28 01:14:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:14:27,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:14:27,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2024-06-28 01:14:27,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5345911949685535 [2024-06-28 01:14:27,612 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 137 flow. Second operand 3 states and 85 transitions. [2024-06-28 01:14:27,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 64 transitions, 296 flow [2024-06-28 01:14:27,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 64 transitions, 284 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-06-28 01:14:27,614 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 132 flow [2024-06-28 01:14:27,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2024-06-28 01:14:27,615 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 2 predicate places. [2024-06-28 01:14:27,615 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 132 flow [2024-06-28 01:14:27,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:27,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:27,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:27,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-28 01:14:27,616 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:27,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:27,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1440021028, now seen corresponding path program 1 times [2024-06-28 01:14:27,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:27,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499653297] [2024-06-28 01:14:27,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:27,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:27,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:27,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:27,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499653297] [2024-06-28 01:14:27,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499653297] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:27,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:27,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-28 01:14:27,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804364882] [2024-06-28 01:14:27,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:27,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:14:27,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:27,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:14:27,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:14:27,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:27,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:27,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:27,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:27,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:28,802 INFO L124 PetriNetUnfolderBase]: 1433/2497 cut-off events. [2024-06-28 01:14:28,802 INFO L125 PetriNetUnfolderBase]: For 950/960 co-relation queries the response was YES. [2024-06-28 01:14:28,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5489 conditions, 2497 events. 1433/2497 cut-off events. For 950/960 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 13521 event pairs, 238 based on Foata normal form. 8/2393 useless extension candidates. Maximal degree in co-relation 5483. Up to 1423 conditions per place. [2024-06-28 01:14:28,815 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 92 selfloop transitions, 11 changer transitions 0/111 dead transitions. [2024-06-28 01:14:28,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 111 transitions, 497 flow [2024-06-28 01:14:28,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-28 01:14:28,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-28 01:14:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2024-06-28 01:14:28,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5345911949685535 [2024-06-28 01:14:28,820 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 132 flow. Second operand 6 states and 170 transitions. [2024-06-28 01:14:28,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 111 transitions, 497 flow [2024-06-28 01:14:28,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 111 transitions, 487 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-28 01:14:28,825 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 193 flow [2024-06-28 01:14:28,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=193, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2024-06-28 01:14:28,827 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 8 predicate places. [2024-06-28 01:14:28,828 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 193 flow [2024-06-28 01:14:28,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:28,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:28,828 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:28,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-28 01:14:28,828 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:28,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:28,829 INFO L85 PathProgramCache]: Analyzing trace with hash -257668766, now seen corresponding path program 1 times [2024-06-28 01:14:28,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:28,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689108376] [2024-06-28 01:14:28,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:28,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:29,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:29,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689108376] [2024-06-28 01:14:29,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689108376] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:29,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:29,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-28 01:14:29,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470922077] [2024-06-28 01:14:29,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:29,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:14:29,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:29,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:14:29,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:14:29,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:29,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:29,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:29,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:29,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:29,653 INFO L124 PetriNetUnfolderBase]: 865/1584 cut-off events. [2024-06-28 01:14:29,653 INFO L125 PetriNetUnfolderBase]: For 881/886 co-relation queries the response was YES. [2024-06-28 01:14:29,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3472 conditions, 1584 events. 865/1584 cut-off events. For 881/886 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 7810 event pairs, 438 based on Foata normal form. 49/1594 useless extension candidates. Maximal degree in co-relation 3463. Up to 759 conditions per place. [2024-06-28 01:14:29,660 INFO L140 encePairwiseOnDemand]: 49/53 looper letters, 48 selfloop transitions, 4 changer transitions 2/61 dead transitions. [2024-06-28 01:14:29,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 61 transitions, 283 flow [2024-06-28 01:14:29,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:14:29,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:14:29,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2024-06-28 01:14:29,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5471698113207547 [2024-06-28 01:14:29,661 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 193 flow. Second operand 3 states and 87 transitions. [2024-06-28 01:14:29,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 61 transitions, 283 flow [2024-06-28 01:14:29,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 61 transitions, 265 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-06-28 01:14:29,666 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 130 flow [2024-06-28 01:14:29,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2024-06-28 01:14:29,668 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 1 predicate places. [2024-06-28 01:14:29,668 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 130 flow [2024-06-28 01:14:29,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:29,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:29,668 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:29,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-28 01:14:29,669 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:29,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:29,669 INFO L85 PathProgramCache]: Analyzing trace with hash 244172274, now seen corresponding path program 1 times [2024-06-28 01:14:29,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:29,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786168521] [2024-06-28 01:14:29,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:29,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:30,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:30,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:30,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786168521] [2024-06-28 01:14:30,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786168521] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:30,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:30,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:14:30,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385517142] [2024-06-28 01:14:30,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:30,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-28 01:14:30,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:30,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-28 01:14:30,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-28 01:14:30,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:30,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:30,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:30,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:30,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:31,437 INFO L124 PetriNetUnfolderBase]: 1038/1882 cut-off events. [2024-06-28 01:14:31,437 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2024-06-28 01:14:31,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4171 conditions, 1882 events. 1038/1882 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 9717 event pairs, 124 based on Foata normal form. 30/1881 useless extension candidates. Maximal degree in co-relation 4163. Up to 913 conditions per place. [2024-06-28 01:14:31,447 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 73 selfloop transitions, 5 changer transitions 3/88 dead transitions. [2024-06-28 01:14:31,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 88 transitions, 400 flow [2024-06-28 01:14:31,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-28 01:14:31,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-28 01:14:31,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 137 transitions. [2024-06-28 01:14:31,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5169811320754717 [2024-06-28 01:14:31,448 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 130 flow. Second operand 5 states and 137 transitions. [2024-06-28 01:14:31,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 88 transitions, 400 flow [2024-06-28 01:14:31,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 88 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-28 01:14:31,451 INFO L231 Difference]: Finished difference. Result has 54 places, 45 transitions, 161 flow [2024-06-28 01:14:31,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=54, PETRI_TRANSITIONS=45} [2024-06-28 01:14:31,452 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2024-06-28 01:14:31,452 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 161 flow [2024-06-28 01:14:31,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:31,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:31,453 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:31,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-28 01:14:31,453 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:31,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:31,454 INFO L85 PathProgramCache]: Analyzing trace with hash -822344853, now seen corresponding path program 1 times [2024-06-28 01:14:31,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:31,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955190502] [2024-06-28 01:14:31,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:31,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:32,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:32,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:32,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955190502] [2024-06-28 01:14:32,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955190502] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-28 01:14:32,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232274740] [2024-06-28 01:14:32,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:32,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:14:32,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:14:32,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-28 01:14:32,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-28 01:14:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:33,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 17 conjunts are in the unsatisfiable core [2024-06-28 01:14:33,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-28 01:14:33,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2024-06-28 01:14:33,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 149 [2024-06-28 01:14:33,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 28 [2024-06-28 01:14:33,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-06-28 01:14:33,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 79 [2024-06-28 01:14:33,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:33,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-28 01:14:34,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-06-28 01:14:34,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2024-06-28 01:14:34,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-06-28 01:14:34,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-06-28 01:14:34,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:34,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232274740] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-28 01:14:34,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-28 01:14:34,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 15 [2024-06-28 01:14:35,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626065688] [2024-06-28 01:14:35,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-28 01:14:35,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-06-28 01:14:35,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:35,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-06-28 01:14:35,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-06-28 01:14:35,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 53 [2024-06-28 01:14:35,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 45 transitions, 161 flow. Second operand has 17 states, 17 states have (on average 13.176470588235293) internal successors, (224), 17 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:35,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:35,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 53 [2024-06-28 01:14:35,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:37,405 INFO L124 PetriNetUnfolderBase]: 3041/5607 cut-off events. [2024-06-28 01:14:37,406 INFO L125 PetriNetUnfolderBase]: For 4477/4477 co-relation queries the response was YES. [2024-06-28 01:14:37,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12820 conditions, 5607 events. 3041/5607 cut-off events. For 4477/4477 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 32578 event pairs, 290 based on Foata normal form. 262/5733 useless extension candidates. Maximal degree in co-relation 12811. Up to 834 conditions per place. [2024-06-28 01:14:37,428 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 234 selfloop transitions, 60 changer transitions 13/313 dead transitions. [2024-06-28 01:14:37,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 313 transitions, 1539 flow [2024-06-28 01:14:37,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-06-28 01:14:37,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-06-28 01:14:37,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 499 transitions. [2024-06-28 01:14:37,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4955312810327706 [2024-06-28 01:14:37,431 INFO L175 Difference]: Start difference. First operand has 54 places, 45 transitions, 161 flow. Second operand 19 states and 499 transitions. [2024-06-28 01:14:37,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 313 transitions, 1539 flow [2024-06-28 01:14:37,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 313 transitions, 1507 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-06-28 01:14:37,436 INFO L231 Difference]: Finished difference. Result has 79 places, 114 transitions, 680 flow [2024-06-28 01:14:37,436 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=680, PETRI_PLACES=79, PETRI_TRANSITIONS=114} [2024-06-28 01:14:37,437 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 30 predicate places. [2024-06-28 01:14:37,437 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 114 transitions, 680 flow [2024-06-28 01:14:37,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 13.176470588235293) internal successors, (224), 17 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:37,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:37,437 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] [2024-06-28 01:14:37,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-28 01:14:37,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:14:37,651 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:37,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:37,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1064066683, now seen corresponding path program 1 times [2024-06-28 01:14:37,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:37,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938252473] [2024-06-28 01:14:37,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:37,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:37,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:37,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938252473] [2024-06-28 01:14:37,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938252473] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:37,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:37,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-28 01:14:37,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800228129] [2024-06-28 01:14:37,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:37,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-28 01:14:37,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:37,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-28 01:14:37,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-28 01:14:37,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:37,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 114 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:37,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:37,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:37,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:38,198 INFO L124 PetriNetUnfolderBase]: 1473/2985 cut-off events. [2024-06-28 01:14:38,199 INFO L125 PetriNetUnfolderBase]: For 8105/8110 co-relation queries the response was YES. [2024-06-28 01:14:38,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8157 conditions, 2985 events. 1473/2985 cut-off events. For 8105/8110 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 15588 event pairs, 519 based on Foata normal form. 181/3107 useless extension candidates. Maximal degree in co-relation 8137. Up to 1417 conditions per place. [2024-06-28 01:14:38,213 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 58 selfloop transitions, 28 changer transitions 0/93 dead transitions. [2024-06-28 01:14:38,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 93 transitions, 650 flow [2024-06-28 01:14:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-28 01:14:38,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-28 01:14:38,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2024-06-28 01:14:38,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5345911949685535 [2024-06-28 01:14:38,215 INFO L175 Difference]: Start difference. First operand has 79 places, 114 transitions, 680 flow. Second operand 3 states and 85 transitions. [2024-06-28 01:14:38,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 93 transitions, 650 flow [2024-06-28 01:14:38,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 93 transitions, 614 flow, removed 13 selfloop flow, removed 3 redundant places. [2024-06-28 01:14:38,227 INFO L231 Difference]: Finished difference. Result has 77 places, 77 transitions, 455 flow [2024-06-28 01:14:38,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=77, PETRI_TRANSITIONS=77} [2024-06-28 01:14:38,228 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 28 predicate places. [2024-06-28 01:14:38,228 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 77 transitions, 455 flow [2024-06-28 01:14:38,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:38,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:38,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:38,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-28 01:14:38,229 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:38,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:38,229 INFO L85 PathProgramCache]: Analyzing trace with hash -822415794, now seen corresponding path program 1 times [2024-06-28 01:14:38,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:38,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524897795] [2024-06-28 01:14:38,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:38,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:38,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:38,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524897795] [2024-06-28 01:14:38,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524897795] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:38,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:38,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-28 01:14:38,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727078604] [2024-06-28 01:14:38,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:38,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-28 01:14:38,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:38,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-28 01:14:38,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-28 01:14:38,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:38,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 455 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:38,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:38,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:38,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:39,553 INFO L124 PetriNetUnfolderBase]: 1648/3354 cut-off events. [2024-06-28 01:14:39,554 INFO L125 PetriNetUnfolderBase]: For 5202/5202 co-relation queries the response was YES. [2024-06-28 01:14:39,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9198 conditions, 3354 events. 1648/3354 cut-off events. For 5202/5202 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 18379 event pairs, 600 based on Foata normal form. 48/3341 useless extension candidates. Maximal degree in co-relation 9178. Up to 2103 conditions per place. [2024-06-28 01:14:39,572 INFO L140 encePairwiseOnDemand]: 41/53 looper letters, 113 selfloop transitions, 14 changer transitions 15/149 dead transitions. [2024-06-28 01:14:39,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 149 transitions, 970 flow [2024-06-28 01:14:39,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-28 01:14:39,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-28 01:14:39,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 214 transitions. [2024-06-28 01:14:39,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44863731656184486 [2024-06-28 01:14:39,576 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 455 flow. Second operand 9 states and 214 transitions. [2024-06-28 01:14:39,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 149 transitions, 970 flow [2024-06-28 01:14:39,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 149 transitions, 927 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-28 01:14:39,590 INFO L231 Difference]: Finished difference. Result has 88 places, 87 transitions, 538 flow [2024-06-28 01:14:39,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=538, PETRI_PLACES=88, PETRI_TRANSITIONS=87} [2024-06-28 01:14:39,591 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 39 predicate places. [2024-06-28 01:14:39,591 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 87 transitions, 538 flow [2024-06-28 01:14:39,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:39,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:39,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:39,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-28 01:14:39,592 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:39,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:39,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1545013946, now seen corresponding path program 2 times [2024-06-28 01:14:39,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:39,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14933281] [2024-06-28 01:14:39,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:39,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:40,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:40,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:40,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14933281] [2024-06-28 01:14:40,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14933281] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:40,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:40,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-28 01:14:40,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796851099] [2024-06-28 01:14:40,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:40,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-28 01:14:40,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:40,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-28 01:14:40,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-06-28 01:14:40,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:40,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 87 transitions, 538 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:40,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:40,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:40,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:41,007 INFO L124 PetriNetUnfolderBase]: 1804/3689 cut-off events. [2024-06-28 01:14:41,007 INFO L125 PetriNetUnfolderBase]: For 7619/7626 co-relation queries the response was YES. [2024-06-28 01:14:41,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11743 conditions, 3689 events. 1804/3689 cut-off events. For 7619/7626 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 20929 event pairs, 738 based on Foata normal form. 55/3677 useless extension candidates. Maximal degree in co-relation 11718. Up to 2721 conditions per place. [2024-06-28 01:14:41,024 INFO L140 encePairwiseOnDemand]: 41/53 looper letters, 116 selfloop transitions, 15 changer transitions 4/142 dead transitions. [2024-06-28 01:14:41,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 142 transitions, 1054 flow [2024-06-28 01:14:41,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-28 01:14:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-28 01:14:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 196 transitions. [2024-06-28 01:14:41,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4109014675052411 [2024-06-28 01:14:41,027 INFO L175 Difference]: Start difference. First operand has 88 places, 87 transitions, 538 flow. Second operand 9 states and 196 transitions. [2024-06-28 01:14:41,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 142 transitions, 1054 flow [2024-06-28 01:14:41,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 142 transitions, 1040 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-28 01:14:41,044 INFO L231 Difference]: Finished difference. Result has 100 places, 101 transitions, 708 flow [2024-06-28 01:14:41,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=708, PETRI_PLACES=100, PETRI_TRANSITIONS=101} [2024-06-28 01:14:41,044 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 51 predicate places. [2024-06-28 01:14:41,044 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 101 transitions, 708 flow [2024-06-28 01:14:41,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:41,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:41,045 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:41,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-28 01:14:41,045 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:41,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:41,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1918601416, now seen corresponding path program 3 times [2024-06-28 01:14:41,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:41,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620817875] [2024-06-28 01:14:41,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:41,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:41,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:41,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620817875] [2024-06-28 01:14:41,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620817875] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:41,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:41,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-28 01:14:41,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164692220] [2024-06-28 01:14:41,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:41,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-28 01:14:41,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:41,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-28 01:14:41,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-06-28 01:14:41,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:41,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 101 transitions, 708 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:41,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:41,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:41,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:42,575 INFO L124 PetriNetUnfolderBase]: 1880/3846 cut-off events. [2024-06-28 01:14:42,576 INFO L125 PetriNetUnfolderBase]: For 14220/14220 co-relation queries the response was YES. [2024-06-28 01:14:42,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14121 conditions, 3846 events. 1880/3846 cut-off events. For 14220/14220 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 22221 event pairs, 536 based on Foata normal form. 0/3783 useless extension candidates. Maximal degree in co-relation 14089. Up to 1940 conditions per place. [2024-06-28 01:14:42,598 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 140 selfloop transitions, 31 changer transitions 18/196 dead transitions. [2024-06-28 01:14:42,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 196 transitions, 1553 flow [2024-06-28 01:14:42,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-28 01:14:42,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-28 01:14:42,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 276 transitions. [2024-06-28 01:14:42,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4339622641509434 [2024-06-28 01:14:42,602 INFO L175 Difference]: Start difference. First operand has 100 places, 101 transitions, 708 flow. Second operand 12 states and 276 transitions. [2024-06-28 01:14:42,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 196 transitions, 1553 flow [2024-06-28 01:14:42,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 196 transitions, 1515 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-06-28 01:14:42,629 INFO L231 Difference]: Finished difference. Result has 114 places, 109 transitions, 814 flow [2024-06-28 01:14:42,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=814, PETRI_PLACES=114, PETRI_TRANSITIONS=109} [2024-06-28 01:14:42,630 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 65 predicate places. [2024-06-28 01:14:42,631 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 109 transitions, 814 flow [2024-06-28 01:14:42,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:42,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:42,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:42,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-28 01:14:42,631 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:42,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:42,632 INFO L85 PathProgramCache]: Analyzing trace with hash -697714940, now seen corresponding path program 4 times [2024-06-28 01:14:42,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:42,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489314919] [2024-06-28 01:14:42,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:42,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:43,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:43,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:43,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489314919] [2024-06-28 01:14:43,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489314919] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:43,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:43,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-28 01:14:43,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126051993] [2024-06-28 01:14:43,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:43,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-28 01:14:43,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:43,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-28 01:14:43,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-06-28 01:14:43,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:43,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 109 transitions, 814 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:43,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:43,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:43,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:44,459 INFO L124 PetriNetUnfolderBase]: 2017/4115 cut-off events. [2024-06-28 01:14:44,459 INFO L125 PetriNetUnfolderBase]: For 17339/17343 co-relation queries the response was YES. [2024-06-28 01:14:44,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15522 conditions, 4115 events. 2017/4115 cut-off events. For 17339/17343 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 24590 event pairs, 819 based on Foata normal form. 40/4082 useless extension candidates. Maximal degree in co-relation 15486. Up to 2511 conditions per place. [2024-06-28 01:14:44,479 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 131 selfloop transitions, 23 changer transitions 14/175 dead transitions. [2024-06-28 01:14:44,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 175 transitions, 1488 flow [2024-06-28 01:14:44,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-28 01:14:44,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-28 01:14:44,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 215 transitions. [2024-06-28 01:14:44,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45073375262054505 [2024-06-28 01:14:44,482 INFO L175 Difference]: Start difference. First operand has 114 places, 109 transitions, 814 flow. Second operand 9 states and 215 transitions. [2024-06-28 01:14:44,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 175 transitions, 1488 flow [2024-06-28 01:14:44,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 175 transitions, 1437 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-06-28 01:14:44,513 INFO L231 Difference]: Finished difference. Result has 124 places, 120 transitions, 983 flow [2024-06-28 01:14:44,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=771, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=983, PETRI_PLACES=124, PETRI_TRANSITIONS=120} [2024-06-28 01:14:44,514 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 75 predicate places. [2024-06-28 01:14:44,514 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 120 transitions, 983 flow [2024-06-28 01:14:44,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:44,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:44,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:44,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-28 01:14:44,515 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:44,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:44,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1282216496, now seen corresponding path program 5 times [2024-06-28 01:14:44,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:44,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287263901] [2024-06-28 01:14:44,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:44,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:45,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:45,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:45,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287263901] [2024-06-28 01:14:45,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287263901] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-28 01:14:45,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-28 01:14:45,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-28 01:14:45,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107139681] [2024-06-28 01:14:45,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-28 01:14:45,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-28 01:14:45,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:45,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-28 01:14:45,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-06-28 01:14:45,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2024-06-28 01:14:45,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 120 transitions, 983 flow. Second operand has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:45,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:45,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2024-06-28 01:14:45,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:14:46,119 INFO L124 PetriNetUnfolderBase]: 2120/4337 cut-off events. [2024-06-28 01:14:46,119 INFO L125 PetriNetUnfolderBase]: For 27075/27075 co-relation queries the response was YES. [2024-06-28 01:14:46,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17757 conditions, 4337 events. 2120/4337 cut-off events. For 27075/27075 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 26298 event pairs, 727 based on Foata normal form. 0/4274 useless extension candidates. Maximal degree in co-relation 17715. Up to 2646 conditions per place. [2024-06-28 01:14:46,150 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 148 selfloop transitions, 26 changer transitions 16/197 dead transitions. [2024-06-28 01:14:46,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 197 transitions, 1791 flow [2024-06-28 01:14:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-06-28 01:14:46,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-06-28 01:14:46,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 263 transitions. [2024-06-28 01:14:46,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41352201257861637 [2024-06-28 01:14:46,171 INFO L175 Difference]: Start difference. First operand has 124 places, 120 transitions, 983 flow. Second operand 12 states and 263 transitions. [2024-06-28 01:14:46,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 197 transitions, 1791 flow [2024-06-28 01:14:46,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 197 transitions, 1743 flow, removed 22 selfloop flow, removed 1 redundant places. [2024-06-28 01:14:46,227 INFO L231 Difference]: Finished difference. Result has 136 places, 124 transitions, 1050 flow [2024-06-28 01:14:46,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1050, PETRI_PLACES=136, PETRI_TRANSITIONS=124} [2024-06-28 01:14:46,228 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 87 predicate places. [2024-06-28 01:14:46,228 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 124 transitions, 1050 flow [2024-06-28 01:14:46,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:46,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:14:46,228 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:14:46,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-28 01:14:46,229 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:14:46,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:14:46,229 INFO L85 PathProgramCache]: Analyzing trace with hash -712458375, now seen corresponding path program 1 times [2024-06-28 01:14:46,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:14:46,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423333909] [2024-06-28 01:14:46,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:46,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:14:46,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:47,049 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:47,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-28 01:14:47,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423333909] [2024-06-28 01:14:47,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423333909] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-28 01:14:47,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75877022] [2024-06-28 01:14:47,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:14:47,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-28 01:14:47,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-28 01:14:47,054 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-28 01:14:47,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-28 01:14:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-28 01:14:47,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 44 conjunts are in the unsatisfiable core [2024-06-28 01:14:47,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-28 01:14:47,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2024-06-28 01:14:47,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2024-06-28 01:14:47,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 96 [2024-06-28 01:14:47,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-06-28 01:14:47,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-06-28 01:14:47,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 57 [2024-06-28 01:14:47,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2024-06-28 01:14:48,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 99 [2024-06-28 01:14:48,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 93 [2024-06-28 01:14:48,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:48,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-28 01:14:48,841 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-06-28 01:14:48,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2024-06-28 01:14:48,857 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:14:48,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 22 [2024-06-28 01:14:50,231 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-06-28 01:14:50,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2024-06-28 01:14:50,239 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-06-28 01:14:50,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 22 [2024-06-28 01:14:51,548 INFO L349 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2024-06-28 01:14:51,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 18 [2024-06-28 01:14:52,357 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-28 01:14:52,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75877022] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-28 01:14:52,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-28 01:14:52,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 31 [2024-06-28 01:14:52,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240419044] [2024-06-28 01:14:52,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-28 01:14:52,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-06-28 01:14:52,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-28 01:14:52,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-06-28 01:14:52,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=856, Unknown=0, NotChecked=0, Total=992 [2024-06-28 01:14:52,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 53 [2024-06-28 01:14:52,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 124 transitions, 1050 flow. Second operand has 32 states, 32 states have (on average 11.40625) internal successors, (365), 32 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:14:52,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-28 01:14:52,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 53 [2024-06-28 01:14:52,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-28 01:15:04,491 INFO L124 PetriNetUnfolderBase]: 2716/5488 cut-off events. [2024-06-28 01:15:04,491 INFO L125 PetriNetUnfolderBase]: For 41705/41705 co-relation queries the response was YES. [2024-06-28 01:15:04,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22409 conditions, 5488 events. 2716/5488 cut-off events. For 41705/41705 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 34424 event pairs, 499 based on Foata normal form. 205/5637 useless extension candidates. Maximal degree in co-relation 22364. Up to 1853 conditions per place. [2024-06-28 01:15:04,527 INFO L140 encePairwiseOnDemand]: 36/53 looper letters, 276 selfloop transitions, 130 changer transitions 48/459 dead transitions. [2024-06-28 01:15:04,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 459 transitions, 4071 flow [2024-06-28 01:15:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-06-28 01:15:04,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-06-28 01:15:04,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 766 transitions. [2024-06-28 01:15:04,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3613207547169811 [2024-06-28 01:15:04,531 INFO L175 Difference]: Start difference. First operand has 136 places, 124 transitions, 1050 flow. Second operand 40 states and 766 transitions. [2024-06-28 01:15:04,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 459 transitions, 4071 flow [2024-06-28 01:15:04,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 459 transitions, 3938 flow, removed 35 selfloop flow, removed 10 redundant places. [2024-06-28 01:15:04,608 INFO L231 Difference]: Finished difference. Result has 176 places, 216 transitions, 2058 flow [2024-06-28 01:15:04,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=2058, PETRI_PLACES=176, PETRI_TRANSITIONS=216} [2024-06-28 01:15:04,610 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 127 predicate places. [2024-06-28 01:15:04,610 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 216 transitions, 2058 flow [2024-06-28 01:15:04,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 11.40625) internal successors, (365), 32 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-28 01:15:04,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-28 01:15:04,610 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:15:04,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-06-28 01:15:04,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-06-28 01:15:04,823 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 6 more)] === [2024-06-28 01:15:04,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-28 01:15:04,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1744843100, now seen corresponding path program 1 times [2024-06-28 01:15:04,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-28 01:15:04,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920100297] [2024-06-28 01:15:04,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-28 01:15:04,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-28 01:15:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-06-28 01:15:04,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-06-28 01:15:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-06-28 01:15:04,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-06-28 01:15:04,916 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-06-28 01:15:04,917 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2024-06-28 01:15:04,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2024-06-28 01:15:04,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 9 remaining) [2024-06-28 01:15:04,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 9 remaining) [2024-06-28 01:15:04,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-06-28 01:15:04,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2024-06-28 01:15:04,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2024-06-28 01:15:04,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2024-06-28 01:15:04,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2024-06-28 01:15:04,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-28 01:15:04,920 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-28 01:15:04,925 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-28 01:15:04,925 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-28 01:15:04,973 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,976 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,976 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,977 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,977 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,977 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,977 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,977 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,977 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,977 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,978 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,978 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,978 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,978 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,978 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,978 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,978 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,978 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,979 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,979 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,979 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,979 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,979 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,979 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,979 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,979 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,980 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,980 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,980 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,980 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,980 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,980 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,982 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,982 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,982 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,982 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,982 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,982 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,983 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,983 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,983 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,983 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,983 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,983 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,983 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,983 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,983 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,984 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,984 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,984 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,984 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,984 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,984 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,985 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,985 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,985 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,985 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,985 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,985 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,985 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,985 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,985 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,986 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,986 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,986 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,986 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,986 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,986 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,986 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,986 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,986 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,987 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,987 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,987 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,987 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,987 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,987 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,987 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,987 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,987 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,988 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,988 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,988 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,988 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,988 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,988 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,988 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,988 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,988 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,989 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,989 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,989 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,989 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,989 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,989 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,989 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,989 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,989 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,990 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,990 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,990 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,990 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,990 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,990 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,990 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,990 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,990 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,991 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,991 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,991 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,991 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,991 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,991 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,992 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,992 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,992 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,992 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,992 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,992 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,992 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,992 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,992 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,993 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,993 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,993 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,993 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,993 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,993 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,994 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,994 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,994 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,994 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,994 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,994 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,994 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,994 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,995 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,995 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,995 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,995 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,995 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,995 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,995 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,995 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,995 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,996 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,996 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,996 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,996 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,996 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,996 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,996 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,996 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,996 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,997 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,997 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,997 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,997 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,997 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,997 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,997 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,997 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,997 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,998 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,998 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,998 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,998 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,998 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,998 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,998 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,998 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,998 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,998 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,999 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,999 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,999 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,999 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,999 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,999 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,999 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:04,999 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:05,000 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:05,000 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:05,000 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) [2024-06-28 01:15:05,019 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-06-28 01:15:05,033 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-06-28 01:15:05,034 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-06-28 01:15:05,035 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.06 01:15:05 BasicIcfg [2024-06-28 01:15:05,035 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-28 01:15:05,035 INFO L158 Benchmark]: Toolchain (without parser) took 51192.49ms. Allocated memory was 153.1MB in the beginning and 5.6GB in the end (delta: 5.5GB). Free memory was 116.4MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 482.6MB. Max. memory is 16.1GB. [2024-06-28 01:15:05,036 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory was 112.4MB in the beginning and 112.3MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:15:05,036 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-28 01:15:05,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.87ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 73.0MB in the end (delta: 43.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-06-28 01:15:05,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.79ms. Allocated memory is still 153.1MB. Free memory was 73.0MB in the beginning and 64.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-06-28 01:15:05,037 INFO L158 Benchmark]: Boogie Preprocessor took 87.60ms. Allocated memory is still 153.1MB. Free memory was 64.6MB in the beginning and 54.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-06-28 01:15:05,039 INFO L158 Benchmark]: RCFGBuilder took 6478.34ms. Allocated memory was 153.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 54.8MB in the beginning and 908.1MB in the end (delta: -853.3MB). Peak memory consumption was 548.7MB. Max. memory is 16.1GB. [2024-06-28 01:15:05,042 INFO L158 Benchmark]: TraceAbstraction took 43854.84ms. Allocated memory was 1.2GB in the beginning and 5.6GB in the end (delta: 4.4GB). Free memory was 907.0MB in the beginning and 5.1GB in the end (delta: -4.2GB). Peak memory consumption was 200.3MB. Max. memory is 16.1GB. [2024-06-28 01:15:05,043 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory was 112.4MB in the beginning and 112.3MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.87ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 73.0MB in the end (delta: 43.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 136.79ms. Allocated memory is still 153.1MB. Free memory was 73.0MB in the beginning and 64.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.60ms. Allocated memory is still 153.1MB. Free memory was 64.6MB in the beginning and 54.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 6478.34ms. Allocated memory was 153.1MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 54.8MB in the beginning and 908.1MB in the end (delta: -853.3MB). Peak memory consumption was 548.7MB. Max. memory is 16.1GB. * TraceAbstraction took 43854.84ms. Allocated memory was 1.2GB in the beginning and 5.6GB in the end (delta: 4.4GB). Free memory was 907.0MB in the beginning and 5.1GB in the end (delta: -4.2GB). Peak memory consumption was 200.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Invalid location (Location is no CACSLLocation) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1043]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1] 0 //@ ghost int m_locked = 0; [L1] 0 //@ ghost int multithreaded = 0; [L947] 0 pthread_mutex_t m; [L947] 0 pthread_mutex_t m; [L947] 0 pthread_mutex_t m; [L947] 0 pthread_mutex_t m; [L947] 0 pthread_mutex_t m; [L947] 0 pthread_mutex_t m; [L949] 0 int stored_elements[(20)]; [L949] 0 int stored_elements[(20)]; [L950] 0 _Bool enqueue_flag, dequeue_flag; [L951] 0 QType queue; [L951] 0 QType queue; [L1054] 0 pthread_t id1, id2; [L1055] 0 enqueue_flag=(1) [L1056] 0 dequeue_flag=(0) [L1057] CALL 0 init(&queue) [L954] 0 q->head=0 [L955] 0 q->tail=0 [L956] 0 q->amount=0 [L1057] RET 0 init(&queue) [L1058] CALL, EXPR 0 empty(&queue) [L960] EXPR 0 q->head [L960] EXPR 0 q->tail [L960] COND TRUE 0 q->head == q->tail [L963] 0 return (-1); [L1058] RET, EXPR 0 empty(&queue) [L1058] COND FALSE 0 !(!empty(&queue)==(-1)) [L1063] 0 //@ ghost multithreaded = 1; VAL [dequeue_flag=0, enqueue_flag=1, id1=-1, m={3:0}, queue={5:0}, stored_elements={4:0}] [L1063] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, &queue) VAL [dequeue_flag=0, enqueue_flag=1, id1=-1, m={3:0}, queue={5:0}, stored_elements={4:0}] [L1007] 1 int value, i; VAL [\old(arg)={5:0}, arg={5:0}, dequeue_flag=0, enqueue_flag=1, m={3:0}, queue={5:0}, stored_elements={4:0}] [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 //@ assert ((!multithreaded || (m_locked || ((((0 <= (queue).head) && (0 <= (queue).tail)) && ((queue).head <= 20)) && ((queue).tail <= 20)))) && (!multithreaded || ((((0 <= (queue).head) && (0 <= (queue).tail)) && ((queue).head <= 20)) && ((queue).tail <= 20)))); [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).head [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail [L1064] 0 (queue).tail VAL [dequeue_flag=0, enqueue_flag=1, id1=-1, m={3:0}, queue={5:0}, stored_elements={4:0}] [L1008] 1 //@ ghost m_locked = 1; [L1009] 1 value = __VERIFIER_nondet_int() [L1010] CALL 1 enqueue(&queue,value) [L980] EXPR 1 q->tail [L980] 1 q->element[q->tail] = x [L981] EXPR 1 q->amount [L981] 1 q->amount++ [L981] 1 q->amount++ [L982] EXPR 1 q->tail [L982] COND FALSE 1 !(q->tail == (20)) [L988] EXPR 1 q->tail [L988] 1 q->tail++ [L988] 1 q->tail++ [L990] 1 return 0; [L1010] RET 1 enqueue(&queue,value) [L1064] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, &queue) VAL [dequeue_flag=0, enqueue_flag=1, id1=-1, id2=0, m={3:0}, queue={5:0}, stored_elements={4:0}] [L1010] COND FALSE 1 !(enqueue(&queue,value)) [L1013] 1 stored_elements[0]=value [L1014] CALL 1 empty(&queue) [L960] EXPR 1 q->head [L960] EXPR 1 q->tail [L960] COND FALSE 1 !(q->head == q->tail) [L966] 1 return 0; [L1014] RET 1 empty(&queue) [L1014] COND FALSE 1 !(empty(&queue)) [L1017] 1 //@ ghost m_locked = 0; [L1036] 2 int i; [L1037] 2 i=0 VAL [\old(arg)={5:0}, arg={5:0}, dequeue_flag=0, enqueue_flag=1, i=0, m={3:0}, queue={5:0}, stored_elements={4:0}] [L1037] COND TRUE 2 i<(20) VAL [\old(arg)={5:0}, arg={5:0}, dequeue_flag=0, enqueue_flag=1, i=0, m={3:0}, queue={5:0}, stored_elements={4:0}] [L1039] 2 //@ ghost m_locked = 1; [L1040] COND FALSE 2 !(\read(dequeue_flag)) VAL [dequeue_flag=0, enqueue_flag=1, m={3:0}, queue={5:0}, stored_elements={4:0}] [L1048] 2 //@ ghost m_locked = 0; [L1037] 2 i++ VAL [\old(arg)={5:0}, arg={5:0}, dequeue_flag=0, enqueue_flag=1, i=1, m={3:0}, queue={5:0}, stored_elements={4:0}] [L1018] 1 i=0 VAL [\old(arg)={5:0}, arg={5:0}, dequeue_flag=0, enqueue_flag=1, i=0, m={3:0}, queue={5:0}, stored_elements={4:0}, value=9] [L1018] COND TRUE 1 i<((20)-1) VAL [\old(arg)={5:0}, arg={5:0}, dequeue_flag=0, enqueue_flag=1, i=0, m={3:0}, queue={5:0}, stored_elements={4:0}, value=9] [L1020] 1 //@ ghost m_locked = 1; [L1021] COND TRUE 1 \read(enqueue_flag) [L1023] 1 value = __VERIFIER_nondet_int() [L1024] CALL 1 enqueue(&queue,value) [L980] EXPR 1 q->tail [L980] 1 q->element[q->tail] = x [L981] EXPR 1 q->amount [L981] 1 q->amount++ [L981] 1 q->amount++ [L982] EXPR 1 q->tail [L982] COND FALSE 1 !(q->tail == (20)) [L988] EXPR 1 q->tail [L988] 1 q->tail++ [L988] 1 q->tail++ [L990] 1 return 0; [L1024] RET 1 enqueue(&queue,value) [L1025] 1 stored_elements[i+1]=value [L1026] 1 enqueue_flag=(0) [L1027] 1 dequeue_flag=(1) VAL [\old(arg)={5:0}, arg={5:0}, dequeue_flag=1, enqueue_flag=0, i=0, m={3:0}, queue={5:0}, stored_elements={4:0}, value=0] [L1037] COND TRUE 2 i<(20) VAL [\old(arg)={5:0}, arg={5:0}, dequeue_flag=1, enqueue_flag=0, i=1, m={3:0}, queue={5:0}, stored_elements={4:0}] [L1029] 1 //@ ghost m_locked = 0; [L1039] 2 //@ ghost m_locked = 1; [L1040] COND TRUE 2 \read(dequeue_flag) [L1042] CALL, EXPR 2 dequeue(&queue) [L994] 2 int x; [L995] EXPR 2 q->head [L995] EXPR 2 q->element[q->head] [L995] 2 x = q->element[q->head] [L996] EXPR 2 q->amount [L996] 2 q->amount-- [L996] 2 q->amount-- [L997] EXPR 2 q->head [L997] COND FALSE 2 !(q->head == (20)) [L1002] EXPR 2 q->head [L1002] 2 q->head++ [L1002] 2 q->head++ [L1003] 2 return x; [L1042] RET, EXPR 2 dequeue(&queue) [L1042] EXPR 2 stored_elements[i] VAL [\old(arg)={5:0}, arg={5:0}, dequeue_flag=1, enqueue_flag=0, i=1, m={3:0}, queue={5:0}, stored_elements={4:0}] [L1042] COND TRUE 2 !dequeue(&queue)==stored_elements[i] [L1043] 2 reach_error() VAL [\old(arg)={5:0}, arg={5:0}, dequeue_flag=1, enqueue_flag=0, i=1, m={3:0}, queue={5:0}, stored_elements={4:0}] - UnprovableResult [Line: 1059]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1064]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1065]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 1063]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1064]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 77 locations, 9 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: 43.6s, OverallIterations: 16, TraceHistogramMax: 2, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 25.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1807 SdHoareTripleChecker+Valid, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1780 mSDsluCounter, 579 SdHoareTripleChecker+Invalid, 7.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 569 mSDsCounter, 153 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6239 IncrementalHoareTripleChecker+Invalid, 6392 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 153 mSolverCounterUnsat, 10 mSDtfsCounter, 6239 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 232 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1389 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2058occurred in iteration=15, InterpolantAutomatonStates: 139, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 14.7s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 360 ConstructedInterpolants, 30 QuantifiedInterpolants, 26755 SizeOfPredicates, 85 NumberOfNonLiveVariables, 1218 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 19 InterpolantComputations, 13 PerfectInterpolantSequences, 0/21 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 RESULT: Ultimate proved your program to be incorrect! [2024-06-28 01:15:05,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE