./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-simple-equiv.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-simple-equiv.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 14:51:30,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:51:30,723 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:51:30,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:51:30,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:51:30,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:51:30,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:51:30,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:51:30,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:51:30,756 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:51:30,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:51:30,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:51:30,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:51:30,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:51:30,758 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:51:30,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:51:30,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:51:30,758 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:51:30,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:51:30,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:51:30,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:51:30,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:51:30,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:51:30,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:51:30,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:51:30,760 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:51:30,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:51:30,760 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:51:30,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:51:30,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:51:30,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:51:30,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:51:30,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:51:30,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:51:30,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:51:30,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:51:30,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:51:30,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:51:30,763 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:51:30,763 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:51:30,763 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:51:30,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:51:30,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:51:30,764 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:51:30,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:51:30,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:51:30,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:51:30,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:51:30,973 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:51:30,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2024-01-27 14:51:32,050 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:51:32,195 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:51:32,195 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2024-01-27 14:51:32,201 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56e70d1a9/d67ea9b0c4444c4094c493a1fd2cc3b3/FLAGc153d38ce [2024-01-27 14:51:32,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56e70d1a9/d67ea9b0c4444c4094c493a1fd2cc3b3 [2024-01-27 14:51:32,216 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:51:32,217 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:51:32,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-simple-equiv.wvr.yml/witness.yml [2024-01-27 14:51:32,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:51:32,314 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:51:32,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:51:32,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:51:32,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:51:32,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:51:32" (1/2) ... [2024-01-27 14:51:32,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158d37c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:32, skipping insertion in model container [2024-01-27 14:51:32,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:51:32" (1/2) ... [2024-01-27 14:51:32,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@20f469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:32, skipping insertion in model container [2024-01-27 14:51:32,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:51:32" (2/2) ... [2024-01-27 14:51:32,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158d37c9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32, skipping insertion in model container [2024-01-27 14:51:32,323 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:51:32" (2/2) ... [2024-01-27 14:51:32,323 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:51:32,338 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:51:32,342 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,343 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,343 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,343 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,343 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,344 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,344 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,344 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,344 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,344 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,344 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] temp_2 == 0U [2024-01-27 14:51:32,344 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] x_0 == 0U [2024-01-27 14:51:32,345 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )x_0) - (long long )x_1 >= 0LL [2024-01-27 14:51:32,345 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] x_1 == 0U [2024-01-27 14:51:32,345 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )x_0) + (long long )x_1 >= 0LL [2024-01-27 14:51:32,345 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] temp_2 == 0U [2024-01-27 14:51:32,345 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (long long )x_0 - (long long )x_1 >= 0LL [2024-01-27 14:51:32,345 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (long long )x_0 + (long long )x_1 >= 0LL [2024-01-27 14:51:32,345 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,346 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,346 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] temp_2 == 0U [2024-01-27 14:51:32,346 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] x_1 == 0U [2024-01-27 14:51:32,346 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] temp_2 == 0U [2024-01-27 14:51:32,346 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-27 14:51:32,361 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:51:32,467 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2251,2264] [2024-01-27 14:51:32,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:51:32,477 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:51:32,514 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c[2251,2264] [2024-01-27 14:51:32,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:51:32,525 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:51:32,525 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32 WrapperNode [2024-01-27 14:51:32,525 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:51:32,526 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:51:32,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:51:32,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:51:32,531 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 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,536 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 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,550 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2024-01-27 14:51:32,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:51:32,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:51:32,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:51:32,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:51:32,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,566 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,578 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-27 14:51:32,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,596 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:51:32,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:51:32,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:51:32,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:51:32,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32" (1/1) ... [2024-01-27 14:51:32,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:51:32,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:51:32,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 14:51:32,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 14:51:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:51:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 14:51:32,657 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 14:51:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 14:51:32,657 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 14:51:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 14:51:32,658 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 14:51:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:51:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:51:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:51:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:51:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:51:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:51:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:51:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:51:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:51:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 14:51:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 14:51:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:51:32,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:51:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:51:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:51:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:51:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 14:51:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:51:32,661 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:51:32,729 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:51:32,731 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:51:32,942 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:51:32,942 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:51:33,045 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:51:33,045 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 14:51:33,045 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:51:33 BoogieIcfgContainer [2024-01-27 14:51:33,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:51:33,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:51:33,047 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:51:33,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:51:33,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:51:32" (1/4) ... [2024-01-27 14:51:33,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244d277d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:51:33, skipping insertion in model container [2024-01-27 14:51:33,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:51:32" (2/4) ... [2024-01-27 14:51:33,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244d277d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:51:33, skipping insertion in model container [2024-01-27 14:51:33,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:32" (3/4) ... [2024-01-27 14:51:33,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244d277d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:51:33, skipping insertion in model container [2024-01-27 14:51:33,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:51:33" (4/4) ... [2024-01-27 14:51:33,058 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2024-01-27 14:51:33,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:51:33,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-01-27 14:51:33,072 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:51:33,145 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-27 14:51:33,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 66 transitions, 153 flow [2024-01-27 14:51:33,215 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2024-01-27 14:51:33,216 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-27 14:51:33,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 0/63 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 109 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-27 14:51:33,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 66 transitions, 153 flow [2024-01-27 14:51:33,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 62 transitions, 142 flow [2024-01-27 14:51:33,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:51:33,237 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;@55a1feae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:51:33,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-01-27 14:51:33,240 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:51:33,240 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:51:33,240 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:51:33,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:33,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:51:33,241 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 14:51:33,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:33,244 INFO L85 PathProgramCache]: Analyzing trace with hash 9772, now seen corresponding path program 1 times [2024-01-27 14:51:33,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:33,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214503435] [2024-01-27 14:51:33,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:33,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:51:33,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:51:33,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:51:33,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214503435] [2024-01-27 14:51:33,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214503435] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:51:33,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:51:33,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:51:33,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331146836] [2024-01-27 14:51:33,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:51:33,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-27 14:51:33,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:51:33,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-27 14:51:33,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-27 14:51:33,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 66 [2024-01-27 14:51:33,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 142 flow. Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:51:33,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:51:33,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 66 [2024-01-27 14:51:33,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:51:33,681 INFO L124 PetriNetUnfolderBase]: 609/1158 cut-off events. [2024-01-27 14:51:33,681 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-01-27 14:51:33,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2211 conditions, 1158 events. 609/1158 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7148 event pairs, 609 based on Foata normal form. 1/923 useless extension candidates. Maximal degree in co-relation 1850. Up to 966 conditions per place. [2024-01-27 14:51:33,694 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 28 selfloop transitions, 0 changer transitions 0/59 dead transitions. [2024-01-27 14:51:33,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 59 transitions, 192 flow [2024-01-27 14:51:33,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-27 14:51:33,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-01-27 14:51:33,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 99 transitions. [2024-01-27 14:51:33,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-01-27 14:51:33,707 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 142 flow. Second operand 2 states and 99 transitions. [2024-01-27 14:51:33,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 59 transitions, 192 flow [2024-01-27 14:51:33,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 59 transitions, 180 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-27 14:51:33,716 INFO L231 Difference]: Finished difference. Result has 64 places, 59 transitions, 124 flow [2024-01-27 14:51:33,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=124, PETRI_PLACES=64, PETRI_TRANSITIONS=59} [2024-01-27 14:51:33,720 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -8 predicate places. [2024-01-27 14:51:33,720 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 59 transitions, 124 flow [2024-01-27 14:51:33,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:51:33,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:33,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 14:51:33,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:51:33,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 14:51:33,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:33,722 INFO L85 PathProgramCache]: Analyzing trace with hash 303258, now seen corresponding path program 1 times [2024-01-27 14:51:33,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:33,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274556245] [2024-01-27 14:51:33,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:33,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:51:33,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:51:33,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:51:33,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274556245] [2024-01-27 14:51:33,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274556245] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:51:33,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:51:33,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:51:33,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90126727] [2024-01-27 14:51:33,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:51:33,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:51:33,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:51:33,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:51:33,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:51:33,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 66 [2024-01-27 14:51:33,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 59 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:51:33,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:51:33,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 66 [2024-01-27 14:51:33,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:51:34,007 INFO L124 PetriNetUnfolderBase]: 609/1153 cut-off events. [2024-01-27 14:51:34,007 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-01-27 14:51:34,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 1153 events. 609/1153 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7197 event pairs, 609 based on Foata normal form. 4/926 useless extension candidates. Maximal degree in co-relation 2145. Up to 966 conditions per place. [2024-01-27 14:51:34,013 INFO L140 encePairwiseOnDemand]: 59/66 looper letters, 27 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-01-27 14:51:34,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 54 transitions, 172 flow [2024-01-27 14:51:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:51:34,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:51:34,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-01-27 14:51:34,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5959595959595959 [2024-01-27 14:51:34,017 INFO L175 Difference]: Start difference. First operand has 64 places, 59 transitions, 124 flow. Second operand 3 states and 118 transitions. [2024-01-27 14:51:34,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 54 transitions, 172 flow [2024-01-27 14:51:34,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 14:51:34,019 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 118 flow [2024-01-27 14:51:34,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-01-27 14:51:34,019 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -11 predicate places. [2024-01-27 14:51:34,020 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 118 flow [2024-01-27 14:51:34,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:51:34,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:34,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 14:51:34,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:51:34,020 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 14:51:34,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:34,021 INFO L85 PathProgramCache]: Analyzing trace with hash 9401302, now seen corresponding path program 1 times [2024-01-27 14:51:34,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:34,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131085192] [2024-01-27 14:51:34,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:34,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:51:34,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:51:34,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:51:34,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131085192] [2024-01-27 14:51:34,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131085192] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:51:34,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:51:34,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:51:34,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599067898] [2024-01-27 14:51:34,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:51:34,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:51:34,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:51:34,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:51:34,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:51:34,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 66 [2024-01-27 14:51:34,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 54 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:51:34,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:51:34,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 66 [2024-01-27 14:51:34,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:51:34,258 INFO L124 PetriNetUnfolderBase]: 609/1150 cut-off events. [2024-01-27 14:51:34,258 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-01-27 14:51:34,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2147 conditions, 1150 events. 609/1150 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7144 event pairs, 609 based on Foata normal form. 1/920 useless extension candidates. Maximal degree in co-relation 2143. Up to 963 conditions per place. [2024-01-27 14:51:34,265 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 26 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-01-27 14:51:34,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 51 transitions, 168 flow [2024-01-27 14:51:34,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:51:34,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:51:34,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2024-01-27 14:51:34,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6262626262626263 [2024-01-27 14:51:34,270 INFO L175 Difference]: Start difference. First operand has 61 places, 54 transitions, 118 flow. Second operand 3 states and 124 transitions. [2024-01-27 14:51:34,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 51 transitions, 168 flow [2024-01-27 14:51:34,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 51 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:51:34,272 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 112 flow [2024-01-27 14:51:34,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2024-01-27 14:51:34,273 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -14 predicate places. [2024-01-27 14:51:34,273 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 112 flow [2024-01-27 14:51:34,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:51:34,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:34,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:51:34,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:51:34,274 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 14:51:34,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:34,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1144083842, now seen corresponding path program 1 times [2024-01-27 14:51:34,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:34,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68007119] [2024-01-27 14:51:34,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:34,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:51:34,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:51:34,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:51:34,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68007119] [2024-01-27 14:51:34,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68007119] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:51:34,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:51:34,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:51:34,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973359349] [2024-01-27 14:51:34,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:51:34,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:51:34,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:51:34,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:51:34,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:51:34,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 66 [2024-01-27 14:51:34,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:51:34,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:51:34,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 66 [2024-01-27 14:51:34,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:51:34,412 INFO L124 PetriNetUnfolderBase]: 609/1149 cut-off events. [2024-01-27 14:51:34,413 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-01-27 14:51:34,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2149 conditions, 1149 events. 609/1149 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7159 event pairs, 609 based on Foata normal form. 0/919 useless extension candidates. Maximal degree in co-relation 2145. Up to 964 conditions per place. [2024-01-27 14:51:34,417 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 29 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-01-27 14:51:34,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 50 transitions, 172 flow [2024-01-27 14:51:34,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:51:34,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:51:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-01-27 14:51:34,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5858585858585859 [2024-01-27 14:51:34,419 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 112 flow. Second operand 3 states and 116 transitions. [2024-01-27 14:51:34,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 50 transitions, 172 flow [2024-01-27 14:51:34,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 50 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:51:34,420 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 110 flow [2024-01-27 14:51:34,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2024-01-27 14:51:34,421 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -15 predicate places. [2024-01-27 14:51:34,421 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 110 flow [2024-01-27 14:51:34,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:51:34,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:34,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:51:34,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:51:34,422 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 14:51:34,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:34,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1962429827, now seen corresponding path program 1 times [2024-01-27 14:51:34,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:34,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739392025] [2024-01-27 14:51:34,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:34,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:51:34,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:51:34,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:51:34,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739392025] [2024-01-27 14:51:34,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739392025] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:51:34,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:51:34,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:51:34,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561155374] [2024-01-27 14:51:34,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:51:34,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:51:34,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:51:34,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:51:34,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:51:34,515 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 66 [2024-01-27 14:51:34,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:51:34,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:51:34,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 66 [2024-01-27 14:51:34,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:51:34,635 INFO L124 PetriNetUnfolderBase]: 609/1156 cut-off events. [2024-01-27 14:51:34,636 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-01-27 14:51:34,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2153 conditions, 1156 events. 609/1156 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 6827 event pairs, 421 based on Foata normal form. 58/1067 useless extension candidates. Maximal degree in co-relation 2149. Up to 844 conditions per place. [2024-01-27 14:51:34,642 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 39 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-01-27 14:51:34,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 60 transitions, 214 flow [2024-01-27 14:51:34,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:51:34,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:51:34,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 168 transitions. [2024-01-27 14:51:34,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-01-27 14:51:34,643 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 110 flow. Second operand 4 states and 168 transitions. [2024-01-27 14:51:34,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 60 transitions, 214 flow [2024-01-27 14:51:34,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 60 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:51:34,646 INFO L231 Difference]: Finished difference. Result has 55 places, 47 transitions, 104 flow [2024-01-27 14:51:34,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=55, PETRI_TRANSITIONS=47} [2024-01-27 14:51:34,648 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -17 predicate places. [2024-01-27 14:51:34,648 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 47 transitions, 104 flow [2024-01-27 14:51:34,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:51:34,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:34,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:51:34,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:51:34,649 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-27 14:51:34,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:34,650 INFO L85 PathProgramCache]: Analyzing trace with hash 705782838, now seen corresponding path program 1 times [2024-01-27 14:51:34,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:34,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523132411] [2024-01-27 14:51:34,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:34,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:51:34,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:51:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:51:34,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:51:34,700 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:51:34,701 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 42 remaining) [2024-01-27 14:51:34,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 42 remaining) [2024-01-27 14:51:34,702 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 42 remaining) [2024-01-27 14:51:34,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 42 remaining) [2024-01-27 14:51:34,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 42 remaining) [2024-01-27 14:51:34,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 42 remaining) [2024-01-27 14:51:34,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 42 remaining) [2024-01-27 14:51:34,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 42 remaining) [2024-01-27 14:51:34,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 42 remaining) [2024-01-27 14:51:34,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 42 remaining) [2024-01-27 14:51:34,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 42 remaining) [2024-01-27 14:51:34,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 42 remaining) [2024-01-27 14:51:34,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 42 remaining) [2024-01-27 14:51:34,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 42 remaining) [2024-01-27 14:51:34,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 42 remaining) [2024-01-27 14:51:34,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 42 remaining) [2024-01-27 14:51:34,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 42 remaining) [2024-01-27 14:51:34,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 42 remaining) [2024-01-27 14:51:34,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 42 remaining) [2024-01-27 14:51:34,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 42 remaining) [2024-01-27 14:51:34,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 42 remaining) [2024-01-27 14:51:34,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 42 remaining) [2024-01-27 14:51:34,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 42 remaining) [2024-01-27 14:51:34,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 42 remaining) [2024-01-27 14:51:34,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 42 remaining) [2024-01-27 14:51:34,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (16 of 42 remaining) [2024-01-27 14:51:34,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 42 remaining) [2024-01-27 14:51:34,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 42 remaining) [2024-01-27 14:51:34,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 42 remaining) [2024-01-27 14:51:34,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 42 remaining) [2024-01-27 14:51:34,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 42 remaining) [2024-01-27 14:51:34,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 42 remaining) [2024-01-27 14:51:34,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 42 remaining) [2024-01-27 14:51:34,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 42 remaining) [2024-01-27 14:51:34,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 42 remaining) [2024-01-27 14:51:34,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 42 remaining) [2024-01-27 14:51:34,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 42 remaining) [2024-01-27 14:51:34,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 42 remaining) [2024-01-27 14:51:34,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 42 remaining) [2024-01-27 14:51:34,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 42 remaining) [2024-01-27 14:51:34,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 42 remaining) [2024-01-27 14:51:34,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 42 remaining) [2024-01-27 14:51:34,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:51:34,715 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-27 14:51:34,720 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:51:34,720 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:51:34,742 INFO L503 ceAbstractionStarter]: Automizer considered 24 witness invariants [2024-01-27 14:51:34,742 INFO L504 ceAbstractionStarter]: WitnessConsidered=24 [2024-01-27 14:51:34,743 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:51:34 BasicIcfg [2024-01-27 14:51:34,743 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:51:34,745 INFO L158 Benchmark]: Toolchain (without parser) took 2429.45ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 116.2MB in the beginning and 103.1MB in the end (delta: 13.0MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2024-01-27 14:51:34,745 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory was 71.9MB in the beginning and 71.9MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:51:34,745 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:51:34,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.34ms. Allocated memory is still 155.2MB. Free memory was 116.2MB in the beginning and 100.5MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-01-27 14:51:34,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.52ms. Allocated memory is still 155.2MB. Free memory was 100.5MB in the beginning and 99.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:51:34,746 INFO L158 Benchmark]: Boogie Preprocessor took 54.11ms. Allocated memory is still 155.2MB. Free memory was 98.5MB in the beginning and 96.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:51:34,746 INFO L158 Benchmark]: RCFGBuilder took 439.83ms. Allocated memory is still 155.2MB. Free memory was 96.4MB in the beginning and 65.8MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-01-27 14:51:34,748 INFO L158 Benchmark]: TraceAbstraction took 1696.91ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 65.0MB in the beginning and 103.1MB in the end (delta: -38.2MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2024-01-27 14:51:34,749 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 111.1MB. Free memory was 71.9MB in the beginning and 71.9MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.34ms. Allocated memory is still 155.2MB. Free memory was 116.2MB in the beginning and 100.5MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.52ms. Allocated memory is still 155.2MB. Free memory was 100.5MB in the beginning and 99.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.11ms. Allocated memory is still 155.2MB. Free memory was 98.5MB in the beginning and 96.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 439.83ms. Allocated memory is still 155.2MB. Free memory was 96.4MB in the beginning and 65.8MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1696.91ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 65.0MB in the beginning and 103.1MB in the end (delta: -38.2MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int x_0, x_1, temp_2; [L64] 0 pthread_t t1, t2, t3; VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_0],IntegerLiteral[0U]]]] [L67] 0 x_0 = __VERIFIER_nondet_uint() [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_1=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] [L68] 0 x_1 = __VERIFIER_nondet_uint() [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] [L69] 0 temp_2 = __VERIFIER_nondet_uint() [L72] CALL 0 assume_abort_if_not( x_0 == x_1 ) [L35] COND FALSE 0 !(!cond) [L72] RET 0 assume_abort_if_not( x_0 == x_1 ) [L74] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={6:0}, t2={5:0}, t3={3:0}, x_0=0, x_1=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, x_0=0, x_1=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L42] 1 x_0++ [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] VAL [_argptr={0:0}, _argptr={0:0}, temp_2=1, x_0=1, x_1=0] - UnprovableResult [Line: 41]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 82]: 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: 74]: 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: 76]: 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: 75]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 101 locations, 42 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: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 286 IncrementalHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 16 mSDtfsCounter, 286 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-27 14:51:34,792 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