./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-figure3.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/popl20-figure3.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27552612 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/popl20-figure3.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-figure3.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-2755261-m [2024-01-26 15:21:31,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:21:31,281 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:21:31,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:21:31,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:21:31,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:21:31,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:21:31,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:21:31,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:21:31,318 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:21:31,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:21:31,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:21:31,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:21:31,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:21:31,320 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:21:31,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:21:31,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:21:31,321 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:21:31,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:21:31,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:21:31,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:21:31,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:21:31,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:21:31,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:21:31,323 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:21:31,323 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:21:31,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:21:31,323 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:21:31,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:21:31,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:21:31,325 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:21:31,325 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:21:31,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:21:31,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:21:31,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:21:31,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:21:31,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:21:31,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:21:31,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:21:31,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:21:31,326 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:21:31,327 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:21:31,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:21:31,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:21:31,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:21:31,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:21:31,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:21:31,541 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:21:31,541 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:21:31,542 INFO L431 ainManager$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/popl20-figure3.wvr.yml/witness.yml [2024-01-26 15:21:31,683 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:21:31,687 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:21:31,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2024-01-26 15:21:32,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:21:33,051 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:21:33,051 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2024-01-26 15:21:33,056 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac51fc599/1973e2997a3a4d28bffe62c7a386036b/FLAG48ca33e80 [2024-01-26 15:21:33,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac51fc599/1973e2997a3a4d28bffe62c7a386036b [2024-01-26 15:21:33,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:21:33,068 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:21:33,069 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:21:33,069 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:21:33,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:21:33,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:21:31" (1/2) ... [2024-01-26 15:21:33,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71196ce9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:33, skipping insertion in model container [2024-01-26 15:21:33,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:21:31" (1/2) ... [2024-01-26 15:21:33,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7f2ca2ea and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:33, skipping insertion in model container [2024-01-26 15:21:33,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:21:33" (2/2) ... [2024-01-26 15:21:33,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71196ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33, skipping insertion in model container [2024-01-26 15:21:33,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:21:33" (2/2) ... [2024-01-26 15:21:33,075 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:21:33,091 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:21:33,102 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (0LL - (long long )c) + (long long )counter >= 0LL [2024-01-26 15:21:33,102 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (0LL - (long long )c) - (long long )counter >= 0LL [2024-01-26 15:21:33,102 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (long long )c - (long long )counter >= 0LL [2024-01-26 15:21:33,102 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (long long )c + (long long )counter >= 0LL [2024-01-26 15:21:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] counter == 0U [2024-01-26 15:21:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] c == 0U [2024-01-26 15:21:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-26 15:21:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (((((((((((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)) || (12U <= i && i <= 4294967294U) [2024-01-26 15:21:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (0LL - (long long )c) + (long long )counter >= 0LL [2024-01-26 15:21:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (long long )c + (long long )counter >= 0LL [2024-01-26 15:21:33,103 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] N == 0U [2024-01-26 15:21:33,104 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] c == 0U [2024-01-26 15:21:33,104 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (0LL - (long long )c) - (long long )counter >= 0LL [2024-01-26 15:21:33,104 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] counter == 0U [2024-01-26 15:21:33,104 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (long long )c - (long long )counter >= 0LL [2024-01-26 15:21:33,104 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] counter == 0U [2024-01-26 15:21:33,104 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-26 15:21:33,105 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L45] (((((((((((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)) || 12U <= i [2024-01-26 15:21:33,105 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L45] (unsigned long )_argptr == 0UL [2024-01-26 15:21:33,105 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-26 15:21:33,105 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (((((((((((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)) || (12U <= i && i <= 4294967294U) [2024-01-26 15:21:33,105 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-26 15:21:33,105 INFO L98 nessWitnessExtractor]: Loop invariant at [L51-L56] (((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || 10U <= i [2024-01-26 15:21:33,106 INFO L98 nessWitnessExtractor]: Loop invariant at [L51-L56] (unsigned long )_argptr == 0UL [2024-01-26 15:21:33,106 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (((((((((((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)) || (12U <= i && i <= 4294967294U) [2024-01-26 15:21:33,106 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (long long )c - (long long )counter >= 0LL [2024-01-26 15:21:33,106 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] counter == 0U [2024-01-26 15:21:33,106 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] c == 0U [2024-01-26 15:21:33,106 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (long long )c + (long long )counter >= 0LL [2024-01-26 15:21:33,106 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-26 15:21:33,107 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (0LL - (long long )c) + (long long )counter >= 0LL [2024-01-26 15:21:33,108 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (0LL - (long long )c) - (long long )counter >= 0LL [2024-01-26 15:21:33,108 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-26 15:21:33,108 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U) [2024-01-26 15:21:33,108 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U) [2024-01-26 15:21:33,108 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-26 15:21:33,109 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] counter == 0U [2024-01-26 15:21:33,109 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-26 15:21:33,109 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U) [2024-01-26 15:21:33,109 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-26 15:21:33,110 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U) [2024-01-26 15:21:33,131 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:21:33,285 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/popl20-figure3.wvr.c[2147,2160] [2024-01-26 15:21:33,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:21:33,315 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local 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 [2024-01-26 15:21:33,397 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/popl20-figure3.wvr.c[2147,2160] [2024-01-26 15:21:33,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:21:33,408 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:21:33,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33 WrapperNode [2024-01-26 15:21:33,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:21:33,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:21:33,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:21:33,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:21:33,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,446 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 103 [2024-01-26 15:21:33,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:21:33,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:21:33,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:21:33,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:21:33,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,510 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]. [2024-01-26 15:21:33,511 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,519 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,522 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,526 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:21:33,526 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:21:33,526 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:21:33,527 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:21:33,527 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (1/1) ... [2024-01-26 15:21:33,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:21:33,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:21:33,556 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) [2024-01-26 15:21:33,564 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 [2024-01-26 15:21:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:21:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 15:21:33,604 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 15:21:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 15:21:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 15:21:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:21:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:21:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:21:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:21:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:21:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:21:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:21:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-26 15:21:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-26 15:21:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:21:33,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:21:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-26 15:21:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-26 15:21:33,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-26 15:21:33,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:21:33,609 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:21:33,708 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:21:33,710 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:21:34,036 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:21:34,037 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:21:34,206 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:21:34,207 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-26 15:21:34,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:21:34 BoogieIcfgContainer [2024-01-26 15:21:34,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:21:34,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:21:34,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:21:34,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:21:34,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:21:31" (1/4) ... [2024-01-26 15:21:34,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d32ee2f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:21:34, skipping insertion in model container [2024-01-26 15:21:34,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:21:33" (2/4) ... [2024-01-26 15:21:34,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d32ee2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:21:34, skipping insertion in model container [2024-01-26 15:21:34,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:33" (3/4) ... [2024-01-26 15:21:34,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d32ee2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:21:34, skipping insertion in model container [2024-01-26 15:21:34,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:21:34" (4/4) ... [2024-01-26 15:21:34,220 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure3.wvr.c [2024-01-26 15:21:34,234 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:21:34,234 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2024-01-26 15:21:34,235 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:21:34,327 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-26 15:21:34,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 97 transitions, 208 flow [2024-01-26 15:21:34,400 INFO L124 PetriNetUnfolderBase]: 2/95 cut-off events. [2024-01-26 15:21:34,400 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-26 15:21:34,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 95 events. 2/95 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 244 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2024-01-26 15:21:34,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 97 transitions, 208 flow [2024-01-26 15:21:34,407 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 94 transitions, 200 flow [2024-01-26 15:21:34,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:21:34,428 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;@4398308a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:21:34,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2024-01-26 15:21:34,430 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:21:34,431 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:21:34,431 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:21:34,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:34,432 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:21:34,432 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-26 15:21:34,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:34,438 INFO L85 PathProgramCache]: Analyzing trace with hash 14079, now seen corresponding path program 1 times [2024-01-26 15:21:34,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:34,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756263735] [2024-01-26 15:21:34,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:34,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:21:34,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:21:34,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:21:34,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756263735] [2024-01-26 15:21:34,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756263735] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:21:34,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:21:34,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:21:34,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835660084] [2024-01-26 15:21:34,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:21:34,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:21:34,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:21:34,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:21:34,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:21:34,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 97 [2024-01-26 15:21:34,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:21:34,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:21:34,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 97 [2024-01-26 15:21:34,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:21:35,018 INFO L124 PetriNetUnfolderBase]: 337/870 cut-off events. [2024-01-26 15:21:35,018 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-01-26 15:21:35,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1412 conditions, 870 events. 337/870 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 5677 event pairs, 213 based on Foata normal form. 86/652 useless extension candidates. Maximal degree in co-relation 1272. Up to 508 conditions per place. [2024-01-26 15:21:35,026 INFO L140 encePairwiseOnDemand]: 68/97 looper letters, 28 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2024-01-26 15:21:35,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 67 transitions, 206 flow [2024-01-26 15:21:35,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:21:35,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:21:35,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2024-01-26 15:21:35,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5979381443298969 [2024-01-26 15:21:35,038 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 200 flow. Second operand 3 states and 174 transitions. [2024-01-26 15:21:35,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 67 transitions, 206 flow [2024-01-26 15:21:35,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 198 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-26 15:21:35,042 INFO L231 Difference]: Finished difference. Result has 70 places, 67 transitions, 142 flow [2024-01-26 15:21:35,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=70, PETRI_TRANSITIONS=67} [2024-01-26 15:21:35,047 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -29 predicate places. [2024-01-26 15:21:35,047 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 67 transitions, 142 flow [2024-01-26 15:21:35,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:21:35,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:35,048 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-26 15:21:35,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:21:35,048 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-26 15:21:35,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:35,049 INFO L85 PathProgramCache]: Analyzing trace with hash 130701767, now seen corresponding path program 1 times [2024-01-26 15:21:35,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:35,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289844541] [2024-01-26 15:21:35,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:35,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:21:35,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:21:35,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:21:35,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289844541] [2024-01-26 15:21:35,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289844541] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:21:35,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:21:35,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:21:35,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162166383] [2024-01-26 15:21:35,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:21:35,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:21:35,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:21:35,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:21:35,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:21:35,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2024-01-26 15:21:35,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 67 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-01-26 15:21:35,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:21:35,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2024-01-26 15:21:35,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:21:35,287 INFO L124 PetriNetUnfolderBase]: 334/812 cut-off events. [2024-01-26 15:21:35,287 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-26 15:21:35,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 812 events. 334/812 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5254 event pairs, 267 based on Foata normal form. 1/536 useless extension candidates. Maximal degree in co-relation 1348. Up to 542 conditions per place. [2024-01-26 15:21:35,293 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 28 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-01-26 15:21:35,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 66 transitions, 200 flow [2024-01-26 15:21:35,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:21:35,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:21:35,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2024-01-26 15:21:35,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6013745704467354 [2024-01-26 15:21:35,300 INFO L175 Difference]: Start difference. First operand has 70 places, 67 transitions, 142 flow. Second operand 3 states and 175 transitions. [2024-01-26 15:21:35,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 66 transitions, 200 flow [2024-01-26 15:21:35,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:21:35,302 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 140 flow [2024-01-26 15:21:35,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2024-01-26 15:21:35,303 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -30 predicate places. [2024-01-26 15:21:35,303 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 140 flow [2024-01-26 15:21:35,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-01-26 15:21:35,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:35,304 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:21:35,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:21:35,305 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-26 15:21:35,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:35,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1918418602, now seen corresponding path program 1 times [2024-01-26 15:21:35,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:35,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194152553] [2024-01-26 15:21:35,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:35,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:21:35,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:21:35,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:21:35,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194152553] [2024-01-26 15:21:35,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194152553] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:21:35,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:21:35,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:21:35,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439285891] [2024-01-26 15:21:35,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:21:35,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:21:35,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:21:35,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:21:35,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:21:35,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 97 [2024-01-26 15:21:35,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:21:35,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:21:35,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 97 [2024-01-26 15:21:35,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:21:35,510 INFO L124 PetriNetUnfolderBase]: 225/621 cut-off events. [2024-01-26 15:21:35,511 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-26 15:21:35,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 621 events. 225/621 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3899 event pairs, 159 based on Foata normal form. 1/419 useless extension candidates. Maximal degree in co-relation 991. Up to 372 conditions per place. [2024-01-26 15:21:35,514 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 27 selfloop transitions, 1 changer transitions 1/57 dead transitions. [2024-01-26 15:21:35,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 57 transitions, 180 flow [2024-01-26 15:21:35,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:21:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:21:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2024-01-26 15:21:35,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5360824742268041 [2024-01-26 15:21:35,516 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 140 flow. Second operand 3 states and 156 transitions. [2024-01-26 15:21:35,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 57 transitions, 180 flow [2024-01-26 15:21:35,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 57 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:21:35,518 INFO L231 Difference]: Finished difference. Result has 61 places, 56 transitions, 117 flow [2024-01-26 15:21:35,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=61, PETRI_TRANSITIONS=56} [2024-01-26 15:21:35,519 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -38 predicate places. [2024-01-26 15:21:35,519 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 56 transitions, 117 flow [2024-01-26 15:21:35,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:21:35,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:35,520 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] [2024-01-26 15:21:35,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:21:35,520 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-26 15:21:35,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:35,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2087126654, now seen corresponding path program 1 times [2024-01-26 15:21:35,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:35,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657026046] [2024-01-26 15:21:35,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:35,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:21:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:21:35,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:21:35,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657026046] [2024-01-26 15:21:35,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657026046] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:21:35,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:21:35,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:21:35,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839768412] [2024-01-26 15:21:35,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:21:35,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:21:35,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:21:35,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:21:35,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:21:35,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 97 [2024-01-26 15:21:35,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 56 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-01-26 15:21:35,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:21:35,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 97 [2024-01-26 15:21:35,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:21:35,724 INFO L124 PetriNetUnfolderBase]: 155/411 cut-off events. [2024-01-26 15:21:35,724 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:21:35,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 411 events. 155/411 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2340 event pairs, 5 based on Foata normal form. 42/383 useless extension candidates. Maximal degree in co-relation 688. Up to 246 conditions per place. [2024-01-26 15:21:35,726 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 29 selfloop transitions, 2 changer transitions 0/59 dead transitions. [2024-01-26 15:21:35,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 59 transitions, 186 flow [2024-01-26 15:21:35,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:21:35,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:21:35,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 224 transitions. [2024-01-26 15:21:35,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5773195876288659 [2024-01-26 15:21:35,728 INFO L175 Difference]: Start difference. First operand has 61 places, 56 transitions, 117 flow. Second operand 4 states and 224 transitions. [2024-01-26 15:21:35,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 59 transitions, 186 flow [2024-01-26 15:21:35,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 59 transitions, 185 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:21:35,730 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 110 flow [2024-01-26 15:21:35,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2024-01-26 15:21:35,730 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -42 predicate places. [2024-01-26 15:21:35,731 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 110 flow [2024-01-26 15:21:35,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-01-26 15:21:35,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:35,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:21:35,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 15:21:35,732 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-26 15:21:35,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:35,732 INFO L85 PathProgramCache]: Analyzing trace with hash -20996703, now seen corresponding path program 1 times [2024-01-26 15:21:35,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:35,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687635474] [2024-01-26 15:21:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:35,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:21:35,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:21:35,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:21:35,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687635474] [2024-01-26 15:21:35,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687635474] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:21:35,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:21:35,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:21:35,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562489085] [2024-01-26 15:21:35,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:21:35,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:21:35,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:21:35,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:21:35,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:21:35,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2024-01-26 15:21:35,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2024-01-26 15:21:35,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:21:35,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2024-01-26 15:21:35,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:21:35,990 INFO L124 PetriNetUnfolderBase]: 187/439 cut-off events. [2024-01-26 15:21:35,990 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-26 15:21:35,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 439 events. 187/439 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2284 event pairs, 69 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 792. Up to 174 conditions per place. [2024-01-26 15:21:35,993 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 30 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2024-01-26 15:21:35,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 195 flow [2024-01-26 15:21:35,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:21:35,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:21:35,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 180 transitions. [2024-01-26 15:21:35,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6185567010309279 [2024-01-26 15:21:35,995 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 110 flow. Second operand 3 states and 180 transitions. [2024-01-26 15:21:35,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 59 transitions, 195 flow [2024-01-26 15:21:35,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 59 transitions, 192 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:21:35,997 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 127 flow [2024-01-26 15:21:35,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2024-01-26 15:21:35,997 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -42 predicate places. [2024-01-26 15:21:35,998 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 127 flow [2024-01-26 15:21:35,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2024-01-26 15:21:35,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:35,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:21:35,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-26 15:21:35,999 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-26 15:21:35,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:35,999 INFO L85 PathProgramCache]: Analyzing trace with hash -36880241, now seen corresponding path program 1 times [2024-01-26 15:21:35,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:35,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817653290] [2024-01-26 15:21:35,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:36,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:21:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:21:36,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:21:36,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817653290] [2024-01-26 15:21:36,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817653290] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:21:36,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:21:36,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:21:36,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618821686] [2024-01-26 15:21:36,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:21:36,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:21:36,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:21:36,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:21:36,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:21:36,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 97 [2024-01-26 15:21:36,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 127 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2024-01-26 15:21:36,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:21:36,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 97 [2024-01-26 15:21:36,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:21:36,159 INFO L124 PetriNetUnfolderBase]: 137/369 cut-off events. [2024-01-26 15:21:36,159 INFO L125 PetriNetUnfolderBase]: For 125/132 co-relation queries the response was YES. [2024-01-26 15:21:36,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 369 events. 137/369 cut-off events. For 125/132 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1813 event pairs, 29 based on Foata normal form. 32/364 useless extension candidates. Maximal degree in co-relation 731. Up to 172 conditions per place. [2024-01-26 15:21:36,161 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 37 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2024-01-26 15:21:36,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 64 transitions, 262 flow [2024-01-26 15:21:36,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:21:36,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:21:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 228 transitions. [2024-01-26 15:21:36,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5876288659793815 [2024-01-26 15:21:36,162 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 127 flow. Second operand 4 states and 228 transitions. [2024-01-26 15:21:36,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 64 transitions, 262 flow [2024-01-26 15:21:36,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 64 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:21:36,165 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 115 flow [2024-01-26 15:21:36,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2024-01-26 15:21:36,165 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -45 predicate places. [2024-01-26 15:21:36,165 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 115 flow [2024-01-26 15:21:36,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2024-01-26 15:21:36,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:36,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:21:36,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-26 15:21:36,166 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 75 more)] === [2024-01-26 15:21:36,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:36,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1297021155, now seen corresponding path program 1 times [2024-01-26 15:21:36,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:36,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833083982] [2024-01-26 15:21:36,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:36,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:21:36,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-26 15:21:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:21:36,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-26 15:21:36,210 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-26 15:21:36,211 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 78 remaining) [2024-01-26 15:21:36,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 78 remaining) [2024-01-26 15:21:36,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 78 remaining) [2024-01-26 15:21:36,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 78 remaining) [2024-01-26 15:21:36,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 78 remaining) [2024-01-26 15:21:36,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 78 remaining) [2024-01-26 15:21:36,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 78 remaining) [2024-01-26 15:21:36,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 78 remaining) [2024-01-26 15:21:36,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 78 remaining) [2024-01-26 15:21:36,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 78 remaining) [2024-01-26 15:21:36,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 78 remaining) [2024-01-26 15:21:36,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 78 remaining) [2024-01-26 15:21:36,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 78 remaining) [2024-01-26 15:21:36,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 78 remaining) [2024-01-26 15:21:36,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 78 remaining) [2024-01-26 15:21:36,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 78 remaining) [2024-01-26 15:21:36,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 78 remaining) [2024-01-26 15:21:36,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 78 remaining) [2024-01-26 15:21:36,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 78 remaining) [2024-01-26 15:21:36,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 78 remaining) [2024-01-26 15:21:36,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 78 remaining) [2024-01-26 15:21:36,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 78 remaining) [2024-01-26 15:21:36,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 78 remaining) [2024-01-26 15:21:36,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 78 remaining) [2024-01-26 15:21:36,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 78 remaining) [2024-01-26 15:21:36,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 78 remaining) [2024-01-26 15:21:36,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 78 remaining) [2024-01-26 15:21:36,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 78 remaining) [2024-01-26 15:21:36,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 78 remaining) [2024-01-26 15:21:36,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 78 remaining) [2024-01-26 15:21:36,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 78 remaining) [2024-01-26 15:21:36,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 78 remaining) [2024-01-26 15:21:36,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 78 remaining) [2024-01-26 15:21:36,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 78 remaining) [2024-01-26 15:21:36,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 78 remaining) [2024-01-26 15:21:36,224 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 78 remaining) [2024-01-26 15:21:36,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 78 remaining) [2024-01-26 15:21:36,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 78 remaining) [2024-01-26 15:21:36,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 78 remaining) [2024-01-26 15:21:36,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 78 remaining) [2024-01-26 15:21:36,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 78 remaining) [2024-01-26 15:21:36,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 78 remaining) [2024-01-26 15:21:36,225 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 78 remaining) [2024-01-26 15:21:36,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 78 remaining) [2024-01-26 15:21:36,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 78 remaining) [2024-01-26 15:21:36,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 78 remaining) [2024-01-26 15:21:36,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (31 of 78 remaining) [2024-01-26 15:21:36,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 78 remaining) [2024-01-26 15:21:36,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 78 remaining) [2024-01-26 15:21:36,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 78 remaining) [2024-01-26 15:21:36,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 78 remaining) [2024-01-26 15:21:36,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 78 remaining) [2024-01-26 15:21:36,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 78 remaining) [2024-01-26 15:21:36,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 78 remaining) [2024-01-26 15:21:36,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 78 remaining) [2024-01-26 15:21:36,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 78 remaining) [2024-01-26 15:21:36,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 78 remaining) [2024-01-26 15:21:36,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 78 remaining) [2024-01-26 15:21:36,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 78 remaining) [2024-01-26 15:21:36,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 78 remaining) [2024-01-26 15:21:36,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 78 remaining) [2024-01-26 15:21:36,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 78 remaining) [2024-01-26 15:21:36,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 78 remaining) [2024-01-26 15:21:36,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 78 remaining) [2024-01-26 15:21:36,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 78 remaining) [2024-01-26 15:21:36,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 78 remaining) [2024-01-26 15:21:36,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 78 remaining) [2024-01-26 15:21:36,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 78 remaining) [2024-01-26 15:21:36,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 78 remaining) [2024-01-26 15:21:36,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 78 remaining) [2024-01-26 15:21:36,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 78 remaining) [2024-01-26 15:21:36,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 78 remaining) [2024-01-26 15:21:36,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 78 remaining) [2024-01-26 15:21:36,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 78 remaining) [2024-01-26 15:21:36,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 78 remaining) [2024-01-26 15:21:36,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 78 remaining) [2024-01-26 15:21:36,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 78 remaining) [2024-01-26 15:21:36,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 78 remaining) [2024-01-26 15:21:36,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-26 15:21:36,234 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:21:36,243 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 15:21:36,244 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 15:21:36,274 INFO L503 ceAbstractionStarter]: Automizer considered 45 witness invariants [2024-01-26 15:21:36,274 INFO L504 ceAbstractionStarter]: WitnessConsidered=45 [2024-01-26 15:21:36,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 03:21:36 BasicIcfg [2024-01-26 15:21:36,275 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 15:21:36,275 INFO L158 Benchmark]: Toolchain (without parser) took 3207.54ms. Allocated memory was 172.0MB in the beginning and 243.3MB in the end (delta: 71.3MB). Free memory was 97.7MB in the beginning and 77.5MB in the end (delta: 20.2MB). Peak memory consumption was 94.3MB. Max. memory is 16.1GB. [2024-01-26 15:21:36,276 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 78.7MB in the end (delta: 84.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:21:36,276 INFO L158 Benchmark]: CDTParser took 0.98ms. Allocated memory is still 172.0MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:21:36,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.36ms. Allocated memory is still 172.0MB. Free memory was 97.4MB in the beginning and 79.5MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-01-26 15:21:36,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.34ms. Allocated memory is still 172.0MB. Free memory was 79.5MB in the beginning and 77.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:21:36,277 INFO L158 Benchmark]: Boogie Preprocessor took 78.37ms. Allocated memory is still 172.0MB. Free memory was 77.2MB in the beginning and 142.1MB in the end (delta: -64.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2024-01-26 15:21:36,277 INFO L158 Benchmark]: RCFGBuilder took 682.73ms. Allocated memory is still 172.0MB. Free memory was 141.5MB in the beginning and 67.5MB in the end (delta: 74.0MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2024-01-26 15:21:36,277 INFO L158 Benchmark]: TraceAbstraction took 2062.49ms. Allocated memory was 172.0MB in the beginning and 243.3MB in the end (delta: 71.3MB). Free memory was 66.9MB in the beginning and 77.5MB in the end (delta: -10.7MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. [2024-01-26 15:21:36,278 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 0.15ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 78.7MB in the end (delta: 84.3kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.98ms. Allocated memory is still 172.0MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.36ms. Allocated memory is still 172.0MB. Free memory was 97.4MB in the beginning and 79.5MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.34ms. Allocated memory is still 172.0MB. Free memory was 79.5MB in the beginning and 77.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.37ms. Allocated memory is still 172.0MB. Free memory was 77.2MB in the beginning and 142.1MB in the end (delta: -64.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * RCFGBuilder took 682.73ms. Allocated memory is still 172.0MB. Free memory was 141.5MB in the beginning and 67.5MB in the end (delta: 74.0MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2062.49ms. Allocated memory was 172.0MB in the beginning and 243.3MB in the end (delta: 71.3MB). Free memory was 66.9MB in the beginning and 77.5MB in the end (delta: -10.7MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int N, counter, c; [L62] 0 pthread_t t1, t2; VAL [N=0, c=0, counter=0, t1={5:0}, t2={3:0}] [L64] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [N=0, c=0, counter=0, t1={5:0}, t2={3:0}] [L64] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] VAL [N=0, c=0, counter=0, t1={5:0}, t2={3:0}] [L64] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [N=0, c=0, counter=0, t1={5:0}, t2={3:0}] [L64] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]] VAL [N=0, c=0, counter=0, t1={5:0}, t2={3:0}] [L64] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]]] VAL [N=0, c=0, counter=0, t1={5:0}, t2={3:0}] [L64] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [N=0, c=0, counter=0, t1={5:0}, t2={3:0}] [L64] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] [L64] 0 N = __VERIFIER_nondet_uint() [L65] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]] VAL [c=0, counter=0, t1={5:0}, t2={3:0}] [L65] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] VAL [c=0, counter=0, t1={5:0}, t2={3:0}] [L65] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [c=0, counter=0, t1={5:0}, t2={3:0}] [L65] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [c=0, counter=0, t1={5:0}, t2={3:0}] [L65] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [c=0, counter=0, t1={5:0}, t2={3:0}] [L65] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] [L65] 0 c = __VERIFIER_nondet_uint() [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] [L67] CALL 0 assume_abort_if_not(c > 0) [L35] COND FALSE 0 !(!cond) [L67] RET 0 assume_abort_if_not(c > 0) [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] [L70] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, c=1, counter=0, t1={5:0}, t2={3:0}] [L41] 1 unsigned int i=0; VAL [_argptr={0:0}, _argptr={0:0}, c=1, counter=0, i=0] [L41] 1 CodeAnnotStmt[Assertion[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[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]]]],BinaryExpression[COMPLEQ,IntegerLiteral[12U],IdentifierExpression[i]]]]] VAL [_argptr={0:0}, _argptr={0:0}, c=1, counter=0, i=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, c=1, counter=0, i=0] [L41] COND TRUE 1 i