./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.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-misc-2-unrolled.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-misc-2-unrolled.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-misc-2-unrolled.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 14:51:19,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:51:19,631 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:51:19,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:51:19,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:51:19,665 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:51:19,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:51:19,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:51:19,668 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:51:19,672 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:51:19,672 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:51:19,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:51:19,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:51:19,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:51:19,674 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:51:19,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:51:19,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:51:19,675 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:51:19,675 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:51:19,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:51:19,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:51:19,676 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:51:19,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:51:19,677 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:51:19,677 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:51:19,677 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:51:19,678 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:51:19,678 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:51:19,678 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:51:19,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:51:19,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:51:19,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:51:19,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:51:19,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:51:19,681 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:51:19,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:51:19,681 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:51:19,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:51:19,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:51:19,682 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:51:19,682 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:51:19,682 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:51:19,682 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:51:19,683 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:51:19,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:51:19,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:51:19,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:51:19,970 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:51:19,971 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:51:19,972 INFO L431 ainManager$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-misc-2-unrolled.wvr.yml/witness.yml [2024-01-27 14:51:20,117 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:51:20,117 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:51:20,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2024-01-27 14:51:21,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:51:21,592 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:51:21,592 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2-unrolled.wvr.c [2024-01-27 14:51:21,600 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b52bcaa/5ac120312bf346579810eb9718a3a2d7/FLAG0a077b1b0 [2024-01-27 14:51:21,611 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b52bcaa/5ac120312bf346579810eb9718a3a2d7 [2024-01-27 14:51:21,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:51:21,613 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:51:21,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:51:21,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:51:21,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:51:21,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:51:20" (1/2) ... [2024-01-27 14:51:21,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f35cad and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:21, skipping insertion in model container [2024-01-27 14:51:21,621 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:51:20" (1/2) ... [2024-01-27 14:51:21,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@286183bc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:51:21, skipping insertion in model container [2024-01-27 14:51:21,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:51:21" (2/2) ... [2024-01-27 14:51:21,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f35cad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21, skipping insertion in model container [2024-01-27 14:51:21,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:51:21" (2/2) ... [2024-01-27 14:51:21,624 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:51:21,639 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:51:21,645 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,645 INFO L98 nessWitnessExtractor]: Loop invariant at [L55-L64] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,646 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,646 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,646 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,669 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,669 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] N == 0U [2024-01-27 14:51:21,669 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] i1 == 0U [2024-01-27 14:51:21,670 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] i2 == 0U [2024-01-27 14:51:21,670 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] N == 0U [2024-01-27 14:51:21,670 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,670 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] N == 0U [2024-01-27 14:51:21,670 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] i2 == 0U [2024-01-27 14:51:21,670 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,671 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,671 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,671 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,671 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] N == 0U [2024-01-27 14:51:21,671 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,671 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,672 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] i2 == 0U [2024-01-27 14:51:21,672 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] N == 0U [2024-01-27 14:51:21,672 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] i1 == 0U [2024-01-27 14:51:21,672 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] pos == 0U [2024-01-27 14:51:21,672 INFO L98 nessWitnessExtractor]: Loop invariant at [L40-L49] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,672 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,673 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,673 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,673 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,673 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,673 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-27 14:51:21,698 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:51:21,886 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-misc-2-unrolled.wvr.c[2358,2371] [2024-01-27 14:51:21,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:51:21,902 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:51:21,961 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-misc-2-unrolled.wvr.c[2358,2371] [2024-01-27 14:51:21,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:51:21,976 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:51:21,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21 WrapperNode [2024-01-27 14:51:21,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:51:21,977 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:51:21,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:51:21,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:51:21,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,026 INFO L138 Inliner]: procedures = 20, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-01-27 14:51:22,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:51:22,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:51:22,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:51:22,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:51:22,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,053 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,072 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-27 14:51:22,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:51:22,105 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:51:22,105 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:51:22,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:51:22,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (1/1) ... [2024-01-27 14:51:22,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:51:22,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:51:22,142 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 14:51:22,154 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 14:51:22,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:51:22,178 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 14:51:22,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 14:51:22,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 14:51:22,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 14:51:22,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:51:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:51:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:51:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:51:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:51:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:51:22,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:51:22,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 14:51:22,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 14:51:22,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:51:22,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:51:22,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:51:22,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:51:22,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:51:22,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:51:22,185 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 14:51:22,266 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:51:22,267 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:51:22,572 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:51:22,572 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:51:22,716 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:51:22,717 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-27 14:51:22,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:51:22 BoogieIcfgContainer [2024-01-27 14:51:22,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:51:22,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:51:22,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:51:22,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:51:22,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:51:20" (1/4) ... [2024-01-27 14:51:22,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2eed64 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:51:22, skipping insertion in model container [2024-01-27 14:51:22,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:51:21" (2/4) ... [2024-01-27 14:51:22,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2eed64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:51:22, skipping insertion in model container [2024-01-27 14:51:22,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:51:21" (3/4) ... [2024-01-27 14:51:22,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2eed64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:51:22, skipping insertion in model container [2024-01-27 14:51:22,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:51:22" (4/4) ... [2024-01-27 14:51:22,728 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled.wvr.c [2024-01-27 14:51:22,743 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:51:22,743 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2024-01-27 14:51:22,743 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:51:22,817 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-27 14:51:22,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 174 flow [2024-01-27 14:51:22,909 INFO L124 PetriNetUnfolderBase]: 2/78 cut-off events. [2024-01-27 14:51:22,910 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:51:22,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 78 events. 2/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 191 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2024-01-27 14:51:22,913 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 80 transitions, 174 flow [2024-01-27 14:51:22,917 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 77 transitions, 166 flow [2024-01-27 14:51:22,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:51:22,937 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;@71d343d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:51:22,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2024-01-27 14:51:22,939 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:51:22,940 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:51:22,940 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:51:22,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:22,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:51:22,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 14:51:22,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:22,948 INFO L85 PathProgramCache]: Analyzing trace with hash 11611, now seen corresponding path program 1 times [2024-01-27 14:51:22,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:22,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207171269] [2024-01-27 14:51:22,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:22,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:51:23,223 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 14:51:23,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:51:23,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207171269] [2024-01-27 14:51:23,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207171269] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:51:23,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:51:23,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:51:23,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591874501] [2024-01-27 14:51:23,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:51:23,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:51:23,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:51:23,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:51:23,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:51:23,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 80 [2024-01-27 14:51:23,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 14:51:23,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:51:23,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 80 [2024-01-27 14:51:23,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:51:23,481 INFO L124 PetriNetUnfolderBase]: 400/952 cut-off events. [2024-01-27 14:51:23,481 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-01-27 14:51:23,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 952 events. 400/952 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6130 event pairs, 267 based on Foata normal form. 1/644 useless extension candidates. Maximal degree in co-relation 1466. Up to 619 conditions per place. [2024-01-27 14:51:23,494 INFO L140 encePairwiseOnDemand]: 73/80 looper letters, 28 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2024-01-27 14:51:23,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 72 transitions, 216 flow [2024-01-27 14:51:23,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:51:23,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:51:23,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 167 transitions. [2024-01-27 14:51:23,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6958333333333333 [2024-01-27 14:51:23,511 INFO L175 Difference]: Start difference. First operand has 82 places, 77 transitions, 166 flow. Second operand 3 states and 167 transitions. [2024-01-27 14:51:23,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 72 transitions, 216 flow [2024-01-27 14:51:23,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 72 transitions, 208 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-27 14:51:23,523 INFO L231 Difference]: Finished difference. Result has 75 places, 72 transitions, 152 flow [2024-01-27 14:51:23,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=75, PETRI_TRANSITIONS=72} [2024-01-27 14:51:23,528 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -7 predicate places. [2024-01-27 14:51:23,528 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 72 transitions, 152 flow [2024-01-27 14:51:23,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 14:51:23,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:23,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 14:51:23,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:51:23,529 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 14:51:23,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:23,530 INFO L85 PathProgramCache]: Analyzing trace with hash 360308, now seen corresponding path program 1 times [2024-01-27 14:51:23,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:23,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547417927] [2024-01-27 14:51:23,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:23,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:51:23,606 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 14:51:23,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:51:23,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547417927] [2024-01-27 14:51:23,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547417927] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:51:23,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:51:23,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:51:23,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248244964] [2024-01-27 14:51:23,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:51:23,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:51:23,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:51:23,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:51:23,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:51:23,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 80 [2024-01-27 14:51:23,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 72 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 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 14:51:23,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:51:23,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 80 [2024-01-27 14:51:23,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:51:23,764 INFO L124 PetriNetUnfolderBase]: 400/950 cut-off events. [2024-01-27 14:51:23,764 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 14:51:23,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 950 events. 400/950 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6094 event pairs, 267 based on Foata normal form. 2/645 useless extension candidates. Maximal degree in co-relation 1571. Up to 618 conditions per place. [2024-01-27 14:51:23,772 INFO L140 encePairwiseOnDemand]: 76/80 looper letters, 28 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2024-01-27 14:51:23,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 70 transitions, 208 flow [2024-01-27 14:51:23,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:51:23,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:51:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2024-01-27 14:51:23,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6708333333333333 [2024-01-27 14:51:23,779 INFO L175 Difference]: Start difference. First operand has 75 places, 72 transitions, 152 flow. Second operand 3 states and 161 transitions. [2024-01-27 14:51:23,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 70 transitions, 208 flow [2024-01-27 14:51:23,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 70 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:51:23,783 INFO L231 Difference]: Finished difference. Result has 73 places, 70 transitions, 148 flow [2024-01-27 14:51:23,783 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=73, PETRI_TRANSITIONS=70} [2024-01-27 14:51:23,784 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -9 predicate places. [2024-01-27 14:51:23,784 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 70 transitions, 148 flow [2024-01-27 14:51:23,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 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 14:51:23,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:23,785 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 14:51:23,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:51:23,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 14:51:23,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:23,786 INFO L85 PathProgramCache]: Analyzing trace with hash 11169935, now seen corresponding path program 1 times [2024-01-27 14:51:23,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:23,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030805086] [2024-01-27 14:51:23,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:23,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:51:23,954 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 14:51:23,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:51:23,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030805086] [2024-01-27 14:51:23,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030805086] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:51:23,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:51:23,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:51:23,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478325493] [2024-01-27 14:51:23,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:51:23,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:51:23,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:51:23,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:51:23,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:51:23,964 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 80 [2024-01-27 14:51:23,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 70 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 14:51:23,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:51:23,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 80 [2024-01-27 14:51:23,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:51:24,078 INFO L124 PetriNetUnfolderBase]: 412/920 cut-off events. [2024-01-27 14:51:24,079 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 14:51:24,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1611 conditions, 920 events. 412/920 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 5769 event pairs, 327 based on Foata normal form. 2/607 useless extension candidates. Maximal degree in co-relation 1593. Up to 671 conditions per place. [2024-01-27 14:51:24,086 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 30 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-01-27 14:51:24,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 66 transitions, 204 flow [2024-01-27 14:51:24,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:51:24,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:51:24,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 153 transitions. [2024-01-27 14:51:24,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6375 [2024-01-27 14:51:24,090 INFO L175 Difference]: Start difference. First operand has 73 places, 70 transitions, 148 flow. Second operand 3 states and 153 transitions. [2024-01-27 14:51:24,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 66 transitions, 204 flow [2024-01-27 14:51:24,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:51:24,092 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 140 flow [2024-01-27 14:51:24,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2024-01-27 14:51:24,093 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -13 predicate places. [2024-01-27 14:51:24,094 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 140 flow [2024-01-27 14:51:24,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 14:51:24,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:24,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 14:51:24,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:51:24,095 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 14:51:24,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:24,095 INFO L85 PathProgramCache]: Analyzing trace with hash 346268354, now seen corresponding path program 1 times [2024-01-27 14:51:24,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:24,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600024637] [2024-01-27 14:51:24,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:24,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:51:24,191 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 14:51:24,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:51:24,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600024637] [2024-01-27 14:51:24,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600024637] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:51:24,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:51:24,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:51:24,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025954706] [2024-01-27 14:51:24,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:51:24,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:51:24,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:51:24,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:51:24,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:51:24,206 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2024-01-27 14:51:24,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 14:51:24,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:51:24,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2024-01-27 14:51:24,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:51:24,317 INFO L124 PetriNetUnfolderBase]: 400/943 cut-off events. [2024-01-27 14:51:24,317 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-01-27 14:51:24,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1578 conditions, 943 events. 400/943 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6113 event pairs, 267 based on Foata normal form. 2/641 useless extension candidates. Maximal degree in co-relation 1557. Up to 617 conditions per place. [2024-01-27 14:51:24,322 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 28 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2024-01-27 14:51:24,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 63 transitions, 194 flow [2024-01-27 14:51:24,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:51:24,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:51:24,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 159 transitions. [2024-01-27 14:51:24,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6625 [2024-01-27 14:51:24,324 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 140 flow. Second operand 3 states and 159 transitions. [2024-01-27 14:51:24,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 63 transitions, 194 flow [2024-01-27 14:51:24,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 63 transitions, 190 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:51:24,328 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 134 flow [2024-01-27 14:51:24,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2024-01-27 14:51:24,330 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -16 predicate places. [2024-01-27 14:51:24,330 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 134 flow [2024-01-27 14:51:24,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 14:51:24,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:24,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:51:24,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:51:24,331 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 14:51:24,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:24,334 INFO L85 PathProgramCache]: Analyzing trace with hash 79341927, now seen corresponding path program 1 times [2024-01-27 14:51:24,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:24,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229777213] [2024-01-27 14:51:24,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:51:24,514 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 14:51:24,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:51:24,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229777213] [2024-01-27 14:51:24,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229777213] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:51:24,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:51:24,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:51:24,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557768001] [2024-01-27 14:51:24,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:51:24,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:51:24,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:51:24,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:51:24,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:51:24,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 80 [2024-01-27 14:51:24,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 134 flow. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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 14:51:24,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:51:24,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 80 [2024-01-27 14:51:24,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:51:24,643 INFO L124 PetriNetUnfolderBase]: 294/606 cut-off events. [2024-01-27 14:51:24,644 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-27 14:51:24,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 606 events. 294/606 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3299 event pairs, 8 based on Foata normal form. 80/600 useless extension candidates. Maximal degree in co-relation 1080. Up to 442 conditions per place. [2024-01-27 14:51:24,647 INFO L140 encePairwiseOnDemand]: 69/80 looper letters, 38 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2024-01-27 14:51:24,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 65 transitions, 219 flow [2024-01-27 14:51:24,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:51:24,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:51:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 197 transitions. [2024-01-27 14:51:24,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.615625 [2024-01-27 14:51:24,649 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 134 flow. Second operand 4 states and 197 transitions. [2024-01-27 14:51:24,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 65 transitions, 219 flow [2024-01-27 14:51:24,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 65 transitions, 215 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:51:24,651 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 116 flow [2024-01-27 14:51:24,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=55, 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=4, PETRI_FLOW=116, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2024-01-27 14:51:24,652 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -24 predicate places. [2024-01-27 14:51:24,652 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 116 flow [2024-01-27 14:51:24,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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 14:51:24,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:24,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:51:24,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:51:24,653 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 14:51:24,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:24,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1063040316, now seen corresponding path program 1 times [2024-01-27 14:51:24,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:24,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379761349] [2024-01-27 14:51:24,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:24,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:51:24,732 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 14:51:24,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:51:24,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379761349] [2024-01-27 14:51:24,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379761349] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:51:24,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:51:24,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:51:24,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833470613] [2024-01-27 14:51:24,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:51:24,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:51:24,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:51:24,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:51:24,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:51:24,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 80 [2024-01-27 14:51:24,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 14:51:24,764 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:51:24,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 80 [2024-01-27 14:51:24,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:51:24,867 INFO L124 PetriNetUnfolderBase]: 269/566 cut-off events. [2024-01-27 14:51:24,868 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-27 14:51:24,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 566 events. 269/566 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2799 event pairs, 67 based on Foata normal form. 80/601 useless extension candidates. Maximal degree in co-relation 982. Up to 358 conditions per place. [2024-01-27 14:51:24,871 INFO L140 encePairwiseOnDemand]: 69/80 looper letters, 42 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2024-01-27 14:51:24,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 62 transitions, 221 flow [2024-01-27 14:51:24,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:51:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:51:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2024-01-27 14:51:24,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.628125 [2024-01-27 14:51:24,872 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 116 flow. Second operand 4 states and 201 transitions. [2024-01-27 14:51:24,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 62 transitions, 221 flow [2024-01-27 14:51:24,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 62 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:51:24,874 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 99 flow [2024-01-27 14:51:24,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2024-01-27 14:51:24,875 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -32 predicate places. [2024-01-27 14:51:24,875 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 99 flow [2024-01-27 14:51:24,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 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 14:51:24,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:51:24,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:51:24,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:51:24,876 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-27 14:51:24,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:51:24,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1443749633, now seen corresponding path program 1 times [2024-01-27 14:51:24,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:51:24,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769333816] [2024-01-27 14:51:24,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:51:24,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:51:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:51:24,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 14:51:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 14:51:24,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 14:51:24,915 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 14:51:24,916 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 59 remaining) [2024-01-27 14:51:24,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 59 remaining) [2024-01-27 14:51:24,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 59 remaining) [2024-01-27 14:51:24,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 59 remaining) [2024-01-27 14:51:24,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 59 remaining) [2024-01-27 14:51:24,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 59 remaining) [2024-01-27 14:51:24,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 59 remaining) [2024-01-27 14:51:24,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 59 remaining) [2024-01-27 14:51:24,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 59 remaining) [2024-01-27 14:51:24,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 59 remaining) [2024-01-27 14:51:24,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 59 remaining) [2024-01-27 14:51:24,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 59 remaining) [2024-01-27 14:51:24,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 59 remaining) [2024-01-27 14:51:24,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 59 remaining) [2024-01-27 14:51:24,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 59 remaining) [2024-01-27 14:51:24,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 59 remaining) [2024-01-27 14:51:24,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 59 remaining) [2024-01-27 14:51:24,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 59 remaining) [2024-01-27 14:51:24,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 59 remaining) [2024-01-27 14:51:24,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 59 remaining) [2024-01-27 14:51:24,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 59 remaining) [2024-01-27 14:51:24,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 59 remaining) [2024-01-27 14:51:24,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 59 remaining) [2024-01-27 14:51:24,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 59 remaining) [2024-01-27 14:51:24,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 59 remaining) [2024-01-27 14:51:24,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 59 remaining) [2024-01-27 14:51:24,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 59 remaining) [2024-01-27 14:51:24,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 59 remaining) [2024-01-27 14:51:24,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 59 remaining) [2024-01-27 14:51:24,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 59 remaining) [2024-01-27 14:51:24,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 59 remaining) [2024-01-27 14:51:24,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 59 remaining) [2024-01-27 14:51:24,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 59 remaining) [2024-01-27 14:51:24,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 59 remaining) [2024-01-27 14:51:24,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (24 of 59 remaining) [2024-01-27 14:51:24,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 59 remaining) [2024-01-27 14:51:24,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 59 remaining) [2024-01-27 14:51:24,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 59 remaining) [2024-01-27 14:51:24,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 59 remaining) [2024-01-27 14:51:24,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 59 remaining) [2024-01-27 14:51:24,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 59 remaining) [2024-01-27 14:51:24,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 59 remaining) [2024-01-27 14:51:24,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 59 remaining) [2024-01-27 14:51:24,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 59 remaining) [2024-01-27 14:51:24,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 59 remaining) [2024-01-27 14:51:24,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 59 remaining) [2024-01-27 14:51:24,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 59 remaining) [2024-01-27 14:51:24,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 59 remaining) [2024-01-27 14:51:24,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 59 remaining) [2024-01-27 14:51:24,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 59 remaining) [2024-01-27 14:51:24,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 59 remaining) [2024-01-27 14:51:24,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 59 remaining) [2024-01-27 14:51:24,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 59 remaining) [2024-01-27 14:51:24,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 59 remaining) [2024-01-27 14:51:24,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 59 remaining) [2024-01-27 14:51:24,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 59 remaining) [2024-01-27 14:51:24,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 59 remaining) [2024-01-27 14:51:24,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 59 remaining) [2024-01-27 14:51:24,928 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 59 remaining) [2024-01-27 14:51:24,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 14:51:24,929 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:51:24,935 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 14:51:24,935 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 14:51:24,955 INFO L503 ceAbstractionStarter]: Automizer considered 33 witness invariants [2024-01-27 14:51:24,956 INFO L504 ceAbstractionStarter]: WitnessConsidered=33 [2024-01-27 14:51:24,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 02:51:24 BasicIcfg [2024-01-27 14:51:24,956 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 14:51:24,957 INFO L158 Benchmark]: Toolchain (without parser) took 3344.56ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 66.3MB in the beginning and 57.0MB in the end (delta: 9.3MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. [2024-01-27 14:51:24,957 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:51:24,958 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:51:24,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.31ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 66.2MB in the beginning and 145.1MB in the end (delta: -78.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2024-01-27 14:51:24,958 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.65ms. Allocated memory is still 184.5MB. Free memory was 145.1MB in the beginning and 144.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 14:51:24,959 INFO L158 Benchmark]: Boogie Preprocessor took 76.62ms. Allocated memory is still 184.5MB. Free memory was 144.0MB in the beginning and 141.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 14:51:24,959 INFO L158 Benchmark]: RCFGBuilder took 612.15ms. Allocated memory is still 184.5MB. Free memory was 141.9MB in the beginning and 107.3MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-01-27 14:51:24,959 INFO L158 Benchmark]: TraceAbstraction took 2237.50ms. Allocated memory is still 184.5MB. Free memory was 107.3MB in the beginning and 57.0MB in the end (delta: 50.3MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2024-01-27 14:51:24,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.31ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 66.2MB in the beginning and 145.1MB in the end (delta: -78.9MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.65ms. Allocated memory is still 184.5MB. Free memory was 145.1MB in the beginning and 144.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 76.62ms. Allocated memory is still 184.5MB. Free memory was 144.0MB in the beginning and 141.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 612.15ms. Allocated memory is still 184.5MB. Free memory was 141.9MB in the beginning and 107.3MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2237.50ms. Allocated memory is still 184.5MB. Free memory was 107.3MB in the beginning and 57.0MB in the end (delta: 50.3MB). Peak memory consumption was 49.2MB. 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: [L37] 0 unsigned int pos, i1, i2, N; [L70] 0 pthread_t t1, t2; VAL [N=0, i1=0, i2=0, pos=0, t1={3:0}, t2={5:0}] [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[pos],IntegerLiteral[0U]]]] VAL [N=0, i1=0, i2=0, pos=0, t1={3:0}, t2={5:0}] [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[i1],IntegerLiteral[0U]]]] VAL [N=0, i1=0, i2=0, pos=0, t1={3:0}, t2={5:0}] [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]] VAL [N=0, i1=0, i2=0, pos=0, t1={3:0}, t2={5:0}] [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0U]]]] [L73] 0 pos = __VERIFIER_nondet_uint() [L74] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0U]]]] VAL [N=0, i1=0, i2=0, t1={3:0}, t2={5:0}] [L74] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[i1],IntegerLiteral[0U]]]] VAL [N=0, i1=0, i2=0, t1={3:0}, t2={5:0}] [L74] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]] [L74] 0 i1 = __VERIFIER_nondet_uint() [L75] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0U]]]] VAL [N=0, i2=0, t1={3:0}, t2={5:0}] [L75] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]] [L75] 0 i2 = __VERIFIER_nondet_uint() [L76] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]] [L76] 0 N = __VERIFIER_nondet_uint() [L79] CALL 0 assume_abort_if_not( pos == i1 && pos == i2 && pos == 0 ) [L34] COND FALSE 0 !(!cond) [L79] RET 0 assume_abort_if_not( pos == i1 && pos == i2 && pos == 0 ) [L81] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, i1=0, i2=0, pos=0, t1={3:0}, t2={5:0}] [L40] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, i1=0, i2=0, pos=0] [L40] COND TRUE 1 ( i1 < ( 2 * N ) ) VAL [N=1, _argptr={0:0}, _argptr={0:0}, i1=0, i2=0, pos=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [N=1, _argptr={0:0}, _argptr={0:0}, i1=0, i2=0, pos=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L42] 1 pos++ [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]] VAL [N=1, _argptr={0:0}, _argptr={0:0}, i1=0, i2=0, pos=1] - UnprovableResult [Line: 40]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - 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: 51]: 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: 45]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 47]: 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: 40]: 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: 66]: 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: 59]: 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: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: 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: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: 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: 81]: 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: 82]: 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 5 procedures, 128 locations, 59 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: 2.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 211 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 148 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 442 IncrementalHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 36 mSDtfsCounter, 442 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 14:51:24,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE