./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/mult-comm.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/mult-comm.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b 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/mult-comm.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/mult-comm.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-8857f20-m [2024-01-29 22:57:17,995 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:57:18,088 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:57:18,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:57:18,104 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:57:18,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:57:18,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:57:18,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:57:18,131 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:57:18,135 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:57:18,135 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:57:18,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:57:18,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:57:18,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:57:18,137 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:57:18,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:57:18,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:57:18,138 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:57:18,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:57:18,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:57:18,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:57:18,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:57:18,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:57:18,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:57:18,139 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:57:18,140 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:57:18,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:57:18,140 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:57:18,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:57:18,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:57:18,142 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:57:18,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:57:18,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:57:18,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:57:18,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:57:18,142 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:57:18,143 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:57:18,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:57:18,143 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:57:18,143 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:57:18,143 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:57:18,143 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:57:18,144 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:57:18,144 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:57:18,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:57:18,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:57:18,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:57:18,376 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:57:18,386 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:57:18,387 INFO L431 ainManager$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/mult-comm.wvr.yml/witness.yml [2024-01-29 22:57:18,499 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:57:18,499 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:57:18,500 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/mult-comm.wvr.c [2024-01-29 22:57:19,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:57:19,834 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:57:19,835 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-comm.wvr.c [2024-01-29 22:57:19,842 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccc71fd44/66bd68dabf5d4f669f72ec3fa65aa39e/FLAGeabd022ae [2024-01-29 22:57:19,856 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccc71fd44/66bd68dabf5d4f669f72ec3fa65aa39e [2024-01-29 22:57:19,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:57:19,858 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:57:19,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:57:19,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:57:19,863 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:57:19,863 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:57:18" (1/2) ... [2024-01-29 22:57:19,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@767632c6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:57:19, skipping insertion in model container [2024-01-29 22:57:19,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:57:18" (1/2) ... [2024-01-29 22:57:19,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6606c103 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:57:19, skipping insertion in model container [2024-01-29 22:57:19,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:57:19" (2/2) ... [2024-01-29 22:57:19,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@767632c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:19, skipping insertion in model container [2024-01-29 22:57:19,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:57:19" (2/2) ... [2024-01-29 22:57:19,867 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:57:19,880 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:57:19,884 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] ((0LL - (long long )a) + (long long )b >= 0LL) && ((0LL - (long long )a) - (long long )b >= 0LL) [2024-01-29 22:57:19,884 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (((0LL - (long long )a) + (long long )b >= 0LL) && ((0LL - (long long )a) - (long long )b >= 0LL)) && ((long long )a - (long long )b >= 0LL) [2024-01-29 22:57:19,885 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (((0LL - (long long )a) + (long long )b >= 0LL) && ((0LL - (long long )a) - (long long )b >= 0LL)) && (x_1 == 0U) [2024-01-29 22:57:19,885 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (((0LL - (long long )a) + (long long )b >= 0LL) && ((0LL - (long long )a) - (long long )b >= 0LL)) && (a == 0U) [2024-01-29 22:57:19,885 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (((0LL - (long long )a) + (long long )b >= 0LL) && ((0LL - (long long )a) - (long long )b >= 0LL)) && (b == 0U) [2024-01-29 22:57:19,886 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (0LL - (long long )a) + (long long )b >= 0LL [2024-01-29 22:57:19,886 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] ((0LL - (long long )a) + (long long )b >= 0LL) && ((long long )a + (long long )b >= 0LL) [2024-01-29 22:57:19,886 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (((0LL - (long long )a) + (long long )b >= 0LL) && ((0LL - (long long )a) - (long long )b >= 0LL)) && (x_2 == 0U) [2024-01-29 22:57:19,886 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((unsigned long )_argptr == 0UL) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-01-29 22:57:19,886 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (((unsigned long )_argptr == 0UL) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U))) && (x_1 == 0U) [2024-01-29 22:57:19,886 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (((unsigned long )_argptr == 0UL) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U))) && (x_2 == 0U) [2024-01-29 22:57:19,894 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-29 22:57:19,895 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (((unsigned long )_argptr == 0UL) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U))) && (b == 0U) [2024-01-29 22:57:19,895 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-29 22:57:19,895 INFO L98 nessWitnessExtractor]: Loop invariant at [L42-L44] (unsigned long )_argptr == 0UL [2024-01-29 22:57:19,895 INFO L98 nessWitnessExtractor]: Loop invariant at [L42-L44] ((unsigned long )_argptr == 0UL) && ((((((((((((12U <= i || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-01-29 22:57:19,895 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-29 22:57:19,895 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (x_1 == 0U) && (b == 0U) [2024-01-29 22:57:19,895 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] x_1 == 0U [2024-01-29 22:57:19,896 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (x_1 == 0U) && (x_2 == 0U) [2024-01-29 22:57:19,896 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (x_1 == 0U) && (x_2 == 0U) [2024-01-29 22:57:19,896 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] x_1 == 0U [2024-01-29 22:57:19,896 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-29 22:57:19,896 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] ((unsigned long )_argptr == 0UL) && (((((((((((((0U == i && i == 0U) || (12U <= i && i <= 4294967294U)) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) [2024-01-29 22:57:19,896 INFO L98 nessWitnessExtractor]: Loop invariant at [L50-L52] (unsigned long )_argptr == 0UL [2024-01-29 22:57:19,896 INFO L98 nessWitnessExtractor]: Loop invariant at [L50-L52] ((unsigned long )_argptr == 0UL) && (((((((((((((0U == i && i == 0U) || 12U <= i) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) [2024-01-29 22:57:19,925 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:57:20,090 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/mult-comm.wvr.c[1936,1949] [2024-01-29 22:57:20,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:57:20,102 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 [2024-01-29 22:57:20,164 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/mult-comm.wvr.c[1936,1949] [2024-01-29 22:57:20,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:57:20,183 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:57:20,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20 WrapperNode [2024-01-29 22:57:20,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:57:20,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:57:20,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:57:20,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:57:20,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,241 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2024-01-29 22:57:20,241 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:57:20,242 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:57:20,242 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:57:20,242 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:57:20,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,252 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,263 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]. [2024-01-29 22:57:20,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:57:20,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:57:20,276 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:57:20,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:57:20,276 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (1/1) ... [2024-01-29 22:57:20,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:57:20,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:57:20,300 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) [2024-01-29 22:57:20,320 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 [2024-01-29 22:57:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:57:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:57:20,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:57:20,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:57:20,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:57:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:57:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:57:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:57:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:57:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:57:20,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:57:20,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:57:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:57:20,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:57:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:57:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:57:20,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:57:20,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:57:20,331 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:57:20,413 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:57:20,414 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:57:20,737 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:57:20,737 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:57:20,786 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:57:20,787 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-29 22:57:20,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:57:20 BoogieIcfgContainer [2024-01-29 22:57:20,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:57:20,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:57:20,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:57:20,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:57:20,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:57:18" (1/4) ... [2024-01-29 22:57:20,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ba895f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:57:20, skipping insertion in model container [2024-01-29 22:57:20,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:57:19" (2/4) ... [2024-01-29 22:57:20,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ba895f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:57:20, skipping insertion in model container [2024-01-29 22:57:20,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:57:20" (3/4) ... [2024-01-29 22:57:20,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ba895f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:57:20, skipping insertion in model container [2024-01-29 22:57:20,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:57:20" (4/4) ... [2024-01-29 22:57:20,794 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-comm.wvr.c [2024-01-29 22:57:20,806 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:57:20,807 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2024-01-29 22:57:20,807 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:57:20,871 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-29 22:57:20,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 79 transitions, 172 flow [2024-01-29 22:57:20,950 INFO L124 PetriNetUnfolderBase]: 2/77 cut-off events. [2024-01-29 22:57:20,950 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:57:20,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 77 events. 2/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 150 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-01-29 22:57:20,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 79 transitions, 172 flow [2024-01-29 22:57:20,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 76 transitions, 164 flow [2024-01-29 22:57:20,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:57:20,976 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;@584375cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:57:20,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-01-29 22:57:20,980 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:57:20,980 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:57:20,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:57:20,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:20,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:57:20,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 22:57:20,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:20,986 INFO L85 PathProgramCache]: Analyzing trace with hash 9323, now seen corresponding path program 1 times [2024-01-29 22:57:20,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:20,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145948779] [2024-01-29 22:57:20,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:20,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:21,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:21,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:21,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145948779] [2024-01-29 22:57:21,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145948779] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:21,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:21,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:57:21,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125871706] [2024-01-29 22:57:21,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:21,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:57:21,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:21,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:57:21,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:57:21,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 79 [2024-01-29 22:57:21,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 76 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-01-29 22:57:21,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:21,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 79 [2024-01-29 22:57:21,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:21,589 INFO L124 PetriNetUnfolderBase]: 117/380 cut-off events. [2024-01-29 22:57:21,590 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-29 22:57:21,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 612 conditions, 380 events. 117/380 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2188 event pairs, 105 based on Foata normal form. 6/277 useless extension candidates. Maximal degree in co-relation 524. Up to 207 conditions per place. [2024-01-29 22:57:21,598 INFO L140 encePairwiseOnDemand]: 70/79 looper letters, 20 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2024-01-29 22:57:21,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 69 transitions, 194 flow [2024-01-29 22:57:21,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:57:21,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:57:21,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2024-01-29 22:57:21,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7426160337552743 [2024-01-29 22:57:21,611 INFO L175 Difference]: Start difference. First operand has 81 places, 76 transitions, 164 flow. Second operand 3 states and 176 transitions. [2024-01-29 22:57:21,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 69 transitions, 194 flow [2024-01-29 22:57:21,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 69 transitions, 186 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 22:57:21,620 INFO L231 Difference]: Finished difference. Result has 72 places, 69 transitions, 146 flow [2024-01-29 22:57:21,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=72, PETRI_TRANSITIONS=69} [2024-01-29 22:57:21,624 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -9 predicate places. [2024-01-29 22:57:21,625 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 69 transitions, 146 flow [2024-01-29 22:57:21,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-01-29 22:57:21,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:21,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:21,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:57:21,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 22:57:21,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:21,627 INFO L85 PathProgramCache]: Analyzing trace with hash 871144950, now seen corresponding path program 1 times [2024-01-29 22:57:21,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:21,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538354226] [2024-01-29 22:57:21,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:21,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:21,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:21,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:21,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538354226] [2024-01-29 22:57:21,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538354226] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:21,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:21,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:57:21,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588627882] [2024-01-29 22:57:21,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:21,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:21,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:21,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:21,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:21,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 79 [2024-01-29 22:57:21,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 69 transitions, 146 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-01-29 22:57:21,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:21,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 79 [2024-01-29 22:57:21,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:22,082 INFO L124 PetriNetUnfolderBase]: 191/676 cut-off events. [2024-01-29 22:57:22,082 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 22:57:22,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 676 events. 191/676 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4343 event pairs, 87 based on Foata normal form. 2/479 useless extension candidates. Maximal degree in co-relation 1017. Up to 175 conditions per place. [2024-01-29 22:57:22,087 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 41 selfloop transitions, 3 changer transitions 0/82 dead transitions. [2024-01-29 22:57:22,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 82 transitions, 263 flow [2024-01-29 22:57:22,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:22,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 211 transitions. [2024-01-29 22:57:22,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6677215189873418 [2024-01-29 22:57:22,090 INFO L175 Difference]: Start difference. First operand has 72 places, 69 transitions, 146 flow. Second operand 4 states and 211 transitions. [2024-01-29 22:57:22,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 82 transitions, 263 flow [2024-01-29 22:57:22,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 82 transitions, 259 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:57:22,092 INFO L231 Difference]: Finished difference. Result has 71 places, 67 transitions, 148 flow [2024-01-29 22:57:22,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, 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=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2024-01-29 22:57:22,093 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -10 predicate places. [2024-01-29 22:57:22,093 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 148 flow [2024-01-29 22:57:22,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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) [2024-01-29 22:57:22,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:22,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:22,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:57:22,094 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 22:57:22,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:22,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2087088268, now seen corresponding path program 1 times [2024-01-29 22:57:22,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:22,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591815496] [2024-01-29 22:57:22,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:22,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:22,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:22,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:22,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591815496] [2024-01-29 22:57:22,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591815496] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:22,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:22,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:57:22,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415087054] [2024-01-29 22:57:22,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:22,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:22,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:22,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:22,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:22,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 79 [2024-01-29 22:57:22,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-01-29 22:57:22,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:22,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 79 [2024-01-29 22:57:22,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:22,331 INFO L124 PetriNetUnfolderBase]: 325/1072 cut-off events. [2024-01-29 22:57:22,332 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-01-29 22:57:22,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1709 conditions, 1072 events. 325/1072 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7412 event pairs, 99 based on Foata normal form. 1/893 useless extension candidates. Maximal degree in co-relation 799. Up to 224 conditions per place. [2024-01-29 22:57:22,339 INFO L140 encePairwiseOnDemand]: 71/79 looper letters, 49 selfloop transitions, 7 changer transitions 1/94 dead transitions. [2024-01-29 22:57:22,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 94 transitions, 326 flow [2024-01-29 22:57:22,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:22,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 246 transitions. [2024-01-29 22:57:22,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7784810126582279 [2024-01-29 22:57:22,342 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 148 flow. Second operand 4 states and 246 transitions. [2024-01-29 22:57:22,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 94 transitions, 326 flow [2024-01-29 22:57:22,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 94 transitions, 321 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:57:22,344 INFO L231 Difference]: Finished difference. Result has 73 places, 71 transitions, 196 flow [2024-01-29 22:57:22,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=73, PETRI_TRANSITIONS=71} [2024-01-29 22:57:22,345 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -8 predicate places. [2024-01-29 22:57:22,346 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 196 flow [2024-01-29 22:57:22,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-01-29 22:57:22,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:22,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:22,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:57:22,347 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 22:57:22,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:22,347 INFO L85 PathProgramCache]: Analyzing trace with hash -57891566, now seen corresponding path program 1 times [2024-01-29 22:57:22,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:22,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142375820] [2024-01-29 22:57:22,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:22,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:22,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:22,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142375820] [2024-01-29 22:57:22,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142375820] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:22,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:22,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:57:22,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741862993] [2024-01-29 22:57:22,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:22,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:22,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:22,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:22,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:22,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 79 [2024-01-29 22:57:22,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 71 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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) [2024-01-29 22:57:22,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:22,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 79 [2024-01-29 22:57:22,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:22,635 INFO L124 PetriNetUnfolderBase]: 278/874 cut-off events. [2024-01-29 22:57:22,635 INFO L125 PetriNetUnfolderBase]: For 176/188 co-relation queries the response was YES. [2024-01-29 22:57:22,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1598 conditions, 874 events. 278/874 cut-off events. For 176/188 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5839 event pairs, 120 based on Foata normal form. 10/734 useless extension candidates. Maximal degree in co-relation 1030. Up to 228 conditions per place. [2024-01-29 22:57:22,642 INFO L140 encePairwiseOnDemand]: 72/79 looper letters, 50 selfloop transitions, 7 changer transitions 0/90 dead transitions. [2024-01-29 22:57:22,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 90 transitions, 356 flow [2024-01-29 22:57:22,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:22,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:22,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 229 transitions. [2024-01-29 22:57:22,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7246835443037974 [2024-01-29 22:57:22,644 INFO L175 Difference]: Start difference. First operand has 73 places, 71 transitions, 196 flow. Second operand 4 states and 229 transitions. [2024-01-29 22:57:22,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 90 transitions, 356 flow [2024-01-29 22:57:22,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 90 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:57:22,647 INFO L231 Difference]: Finished difference. Result has 74 places, 68 transitions, 195 flow [2024-01-29 22:57:22,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=195, PETRI_PLACES=74, PETRI_TRANSITIONS=68} [2024-01-29 22:57:22,648 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -7 predicate places. [2024-01-29 22:57:22,648 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 68 transitions, 195 flow [2024-01-29 22:57:22,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 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) [2024-01-29 22:57:22,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:22,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:22,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:57:22,649 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 22:57:22,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:22,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1185311936, now seen corresponding path program 1 times [2024-01-29 22:57:22,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:22,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760720570] [2024-01-29 22:57:22,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:22,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:22,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:22,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:22,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760720570] [2024-01-29 22:57:22,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760720570] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:22,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:22,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:57:22,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11881191] [2024-01-29 22:57:22,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:22,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:22,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:22,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:22,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:22,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 79 [2024-01-29 22:57:22,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 68 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 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) [2024-01-29 22:57:22,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:22,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 79 [2024-01-29 22:57:22,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:22,855 INFO L124 PetriNetUnfolderBase]: 215/603 cut-off events. [2024-01-29 22:57:22,855 INFO L125 PetriNetUnfolderBase]: For 200/212 co-relation queries the response was YES. [2024-01-29 22:57:22,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1217 conditions, 603 events. 215/603 cut-off events. For 200/212 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3316 event pairs, 68 based on Foata normal form. 82/637 useless extension candidates. Maximal degree in co-relation 581. Up to 358 conditions per place. [2024-01-29 22:57:22,858 INFO L140 encePairwiseOnDemand]: 71/79 looper letters, 29 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2024-01-29 22:57:22,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 70 transitions, 268 flow [2024-01-29 22:57:22,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:22,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:22,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2024-01-29 22:57:22,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7626582278481012 [2024-01-29 22:57:22,860 INFO L175 Difference]: Start difference. First operand has 74 places, 68 transitions, 195 flow. Second operand 4 states and 241 transitions. [2024-01-29 22:57:22,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 70 transitions, 268 flow [2024-01-29 22:57:22,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 70 transitions, 254 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:57:22,863 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 173 flow [2024-01-29 22:57:22,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2024-01-29 22:57:22,865 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -13 predicate places. [2024-01-29 22:57:22,865 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 173 flow [2024-01-29 22:57:22,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 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) [2024-01-29 22:57:22,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:22,866 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:22,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:57:22,866 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 22:57:22,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:22,866 INFO L85 PathProgramCache]: Analyzing trace with hash -918864807, now seen corresponding path program 1 times [2024-01-29 22:57:22,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:22,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875065724] [2024-01-29 22:57:22,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:22,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:57:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:57:22,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:57:22,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875065724] [2024-01-29 22:57:22,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875065724] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:57:22,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:57:22,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:57:22,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953556409] [2024-01-29 22:57:22,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:57:22,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:57:22,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:57:22,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:57:22,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:57:22,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 79 [2024-01-29 22:57:22,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 173 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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) [2024-01-29 22:57:22,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:57:22,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 79 [2024-01-29 22:57:22,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:57:23,071 INFO L124 PetriNetUnfolderBase]: 215/626 cut-off events. [2024-01-29 22:57:23,072 INFO L125 PetriNetUnfolderBase]: For 189/200 co-relation queries the response was YES. [2024-01-29 22:57:23,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1193 conditions, 626 events. 215/626 cut-off events. For 189/200 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3477 event pairs, 10 based on Foata normal form. 142/712 useless extension candidates. Maximal degree in co-relation 1041. Up to 332 conditions per place. [2024-01-29 22:57:23,074 INFO L140 encePairwiseOnDemand]: 71/79 looper letters, 32 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2024-01-29 22:57:23,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 67 transitions, 266 flow [2024-01-29 22:57:23,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:57:23,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:57:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 245 transitions. [2024-01-29 22:57:23,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7753164556962026 [2024-01-29 22:57:23,076 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 173 flow. Second operand 4 states and 245 transitions. [2024-01-29 22:57:23,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 67 transitions, 266 flow [2024-01-29 22:57:23,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 67 transitions, 261 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:57:23,078 INFO L231 Difference]: Finished difference. Result has 63 places, 56 transitions, 162 flow [2024-01-29 22:57:23,078 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=162, PETRI_PLACES=63, PETRI_TRANSITIONS=56} [2024-01-29 22:57:23,080 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -18 predicate places. [2024-01-29 22:57:23,081 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 56 transitions, 162 flow [2024-01-29 22:57:23,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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) [2024-01-29 22:57:23,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:57:23,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:23,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:57:23,081 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 47 more)] === [2024-01-29 22:57:23,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:57:23,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1593558005, now seen corresponding path program 1 times [2024-01-29 22:57:23,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:57:23,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249777936] [2024-01-29 22:57:23,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:57:23,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:57:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:57:23,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:57:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:57:23,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:57:23,129 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:57:23,130 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 50 remaining) [2024-01-29 22:57:23,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 50 remaining) [2024-01-29 22:57:23,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 50 remaining) [2024-01-29 22:57:23,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 50 remaining) [2024-01-29 22:57:23,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 50 remaining) [2024-01-29 22:57:23,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 50 remaining) [2024-01-29 22:57:23,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 50 remaining) [2024-01-29 22:57:23,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 50 remaining) [2024-01-29 22:57:23,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 50 remaining) [2024-01-29 22:57:23,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 50 remaining) [2024-01-29 22:57:23,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 50 remaining) [2024-01-29 22:57:23,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 50 remaining) [2024-01-29 22:57:23,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 50 remaining) [2024-01-29 22:57:23,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 50 remaining) [2024-01-29 22:57:23,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 50 remaining) [2024-01-29 22:57:23,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 50 remaining) [2024-01-29 22:57:23,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 50 remaining) [2024-01-29 22:57:23,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 50 remaining) [2024-01-29 22:57:23,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 50 remaining) [2024-01-29 22:57:23,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 50 remaining) [2024-01-29 22:57:23,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 50 remaining) [2024-01-29 22:57:23,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 50 remaining) [2024-01-29 22:57:23,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 50 remaining) [2024-01-29 22:57:23,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 50 remaining) [2024-01-29 22:57:23,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 50 remaining) [2024-01-29 22:57:23,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 50 remaining) [2024-01-29 22:57:23,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 50 remaining) [2024-01-29 22:57:23,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 50 remaining) [2024-01-29 22:57:23,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 50 remaining) [2024-01-29 22:57:23,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 50 remaining) [2024-01-29 22:57:23,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 50 remaining) [2024-01-29 22:57:23,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (18 of 50 remaining) [2024-01-29 22:57:23,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 50 remaining) [2024-01-29 22:57:23,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 50 remaining) [2024-01-29 22:57:23,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 50 remaining) [2024-01-29 22:57:23,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 50 remaining) [2024-01-29 22:57:23,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 50 remaining) [2024-01-29 22:57:23,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 50 remaining) [2024-01-29 22:57:23,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 50 remaining) [2024-01-29 22:57:23,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 50 remaining) [2024-01-29 22:57:23,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 50 remaining) [2024-01-29 22:57:23,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 50 remaining) [2024-01-29 22:57:23,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 50 remaining) [2024-01-29 22:57:23,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 50 remaining) [2024-01-29 22:57:23,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 50 remaining) [2024-01-29 22:57:23,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 50 remaining) [2024-01-29 22:57:23,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 50 remaining) [2024-01-29 22:57:23,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 50 remaining) [2024-01-29 22:57:23,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 50 remaining) [2024-01-29 22:57:23,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 50 remaining) [2024-01-29 22:57:23,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:57:23,143 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:57:23,148 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:57:23,148 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:57:23,164 INFO L503 ceAbstractionStarter]: Automizer considered 30 witness invariants [2024-01-29 22:57:23,165 INFO L504 ceAbstractionStarter]: WitnessConsidered=30 [2024-01-29 22:57:23,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:57:23 BasicIcfg [2024-01-29 22:57:23,165 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:57:23,166 INFO L158 Benchmark]: Toolchain (without parser) took 3307.32ms. Allocated memory was 199.2MB in the beginning and 283.1MB in the end (delta: 83.9MB). Free memory was 128.3MB in the beginning and 220.2MB in the end (delta: -91.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:57:23,166 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 109.1MB. Free memory was 75.9MB in the beginning and 75.8MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:57:23,166 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 199.2MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:57:23,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.01ms. Allocated memory is still 199.2MB. Free memory was 128.1MB in the beginning and 111.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-01-29 22:57:23,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.75ms. Allocated memory is still 199.2MB. Free memory was 111.3MB in the beginning and 171.9MB in the end (delta: -60.6MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-01-29 22:57:23,167 INFO L158 Benchmark]: Boogie Preprocessor took 33.01ms. Allocated memory is still 199.2MB. Free memory was 171.9MB in the beginning and 169.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:57:23,167 INFO L158 Benchmark]: RCFGBuilder took 511.81ms. Allocated memory is still 199.2MB. Free memory was 169.4MB in the beginning and 130.2MB in the end (delta: 39.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-01-29 22:57:23,167 INFO L158 Benchmark]: TraceAbstraction took 2376.60ms. Allocated memory was 199.2MB in the beginning and 283.1MB in the end (delta: 83.9MB). Free memory was 129.6MB in the beginning and 220.2MB in the end (delta: -90.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:57:23,168 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 0.17ms. Allocated memory is still 109.1MB. Free memory was 75.9MB in the beginning and 75.8MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 199.2MB. Free memory is still 173.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.01ms. Allocated memory is still 199.2MB. Free memory was 128.1MB in the beginning and 111.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.75ms. Allocated memory is still 199.2MB. Free memory was 111.3MB in the beginning and 171.9MB in the end (delta: -60.6MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.01ms. Allocated memory is still 199.2MB. Free memory was 171.9MB in the beginning and 169.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.81ms. Allocated memory is still 199.2MB. Free memory was 169.4MB in the beginning and 130.2MB in the end (delta: 39.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2376.60ms. Allocated memory was 199.2MB in the beginning and 283.1MB in the end (delta: 83.9MB). Free memory was 129.6MB in the beginning and 220.2MB in the end (delta: -90.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int x_1, x_2, a, b; [L58] 0 pthread_t t1, t2; VAL [a=0, b=0, t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]]]] VAL [a=0, b=0, t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[a]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]]]] VAL [a=0, b=0, t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]]] VAL [a=0, b=0, t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[b],IntegerLiteral[0U]]]]] VAL [a=0, b=0, t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[a],IntegerLiteral[0U]]]]] VAL [a=0, b=0, t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]]] VAL [a=0, b=0, t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[a]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]]]] VAL [a=0, b=0, t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[b]]],IntegerLiteral[0LL]]]]] [L61] 0 a = __VERIFIER_nondet_uint() [L62] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]]]] VAL [b=0, t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L62] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] VAL [b=0, t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L62] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[b],IntegerLiteral[0U]]]]] [L62] 0 b = __VERIFIER_nondet_uint() [L64] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] VAL [t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L64] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]]]] [L64] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={3:0}, t2={5:0}, x_1=0, x_2=0] [L42] 1 unsigned int i=0; VAL [_argptr={0:0}, _argptr={0:0}, i=0, x_1=0, x_2=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, i=0, x_1=0, x_2=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]],BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPLEQ,IntegerLiteral[12U],IdentifierExpression[i]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[11U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[10U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[9U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[8U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[7U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[6U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[5U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[4U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[3U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[2U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[1U]]],BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IntegerLiteral[0U],IdentifierExpression[i]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[0U]]]]]]] VAL [_argptr={0:0}, _argptr={0:0}, i=0, x_1=0, x_2=0] [L42] COND TRUE 1 i