./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 3d25acf6 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-3d25acf-m [2024-01-30 14:25:05,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:25:05,155 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:25:05,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:25:05,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:25:05,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:25:05,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:25:05,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:25:05,178 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:25:05,182 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:25:05,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:25:05,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:25:05,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:25:05,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:25:05,184 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:25:05,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:25:05,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:25:05,185 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:25:05,185 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:25:05,186 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:25:05,186 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:25:05,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:25:05,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:25:05,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:25:05,187 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:25:05,187 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:25:05,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:25:05,187 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:25:05,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:25:05,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:25:05,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:25:05,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:25:05,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:25:05,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:25:05,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:25:05,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:25:05,191 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:25:05,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:25:05,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:25:05,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:25:05,192 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:25:05,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:25:05,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:25:05,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:25:05,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:25:05,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:25:05,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:25:05,416 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:25:05,416 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:25:05,417 INFO L431 ainManager$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 [2024-01-30 14:25:05,578 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:25:05,579 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:25:05,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2024-01-30 14:25:06,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:25:06,914 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:25:06,914 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-figure3.wvr.c [2024-01-30 14:25:06,920 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e53ef194/1e5f68a8e7ac4f34a1a9c1d312879317/FLAGec3baf987 [2024-01-30 14:25:06,930 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e53ef194/1e5f68a8e7ac4f34a1a9c1d312879317 [2024-01-30 14:25:06,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:25:06,932 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:25:06,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:25:06,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:25:06,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:25:06,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:05" (1/2) ... [2024-01-30 14:25:06,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c185d10 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:06, skipping insertion in model container [2024-01-30 14:25:06,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:05" (1/2) ... [2024-01-30 14:25:06,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6c03728f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:06, skipping insertion in model container [2024-01-30 14:25:06,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:25:06" (2/2) ... [2024-01-30 14:25:06,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c185d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:06, skipping insertion in model container [2024-01-30 14:25:06,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:25:06" (2/2) ... [2024-01-30 14:25:06,943 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:25:06,970 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:25:06,974 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] ((unsigned long )_argptr == 0UL) && ((((((((((((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)) [2024-01-30 14:25:06,974 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] counter == 0U [2024-01-30 14:25:06,974 INFO L98 nessWitnessExtractor]: Loop invariant at [L51-L56] ((unsigned long )_argptr == 0UL) && ((((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || 10U <= i) [2024-01-30 14:25:06,974 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] ((unsigned long )_argptr == 0UL) && ((((((((((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)) [2024-01-30 14:25:06,974 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] ((unsigned long )_argptr == 0UL) && ((((((((((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)) [2024-01-30 14:25:06,974 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (((((((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && ((0LL - (long long )c) - (long long )counter >= 0LL)) && ((long long )c - (long long )counter >= 0LL)) && (N == 0U)) && (counter == 0U)) && (c == 0U) [2024-01-30 14:25:06,975 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] ((((((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && ((0LL - (long long )c) - (long long )counter >= 0LL)) && ((long long )c - (long long )counter >= 0LL)) && (counter == 0U)) && (c == 0U) [2024-01-30 14:25:06,975 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] ((unsigned long )_argptr == 0UL) && ((((((((((((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)) [2024-01-30 14:25:06,975 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] counter == 0U [2024-01-30 14:25:06,975 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-30 14:25:06,975 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L45] ((unsigned long )_argptr == 0UL) && ((((((((((((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) [2024-01-30 14:25:06,975 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] ((unsigned long )_argptr == 0UL) && ((((((((((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)) [2024-01-30 14:25:06,975 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] ((unsigned long )_argptr == 0UL) && ((((((((((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)) [2024-01-30 14:25:06,976 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-30 14:25:06,976 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((((((((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && ((0LL - (long long )c) - (long long )counter >= 0LL)) && ((long long )c - (long long )counter >= 0LL)) && (counter == 0U)) && (c == 0U)) && ((unsigned long )_argptr == 0UL)) && ((((((((((((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)) [2024-01-30 14:25:06,994 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:25:07,128 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] [2024-01-30 14:25:07,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:25:07,137 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 [2024-01-30 14:25:07,216 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] [2024-01-30 14:25:07,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:25:07,227 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:25:07,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07 WrapperNode [2024-01-30 14:25:07,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:25:07,228 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:25:07,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:25:07,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:25:07,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,278 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 86 [2024-01-30 14:25:07,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:25:07,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:25:07,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:25:07,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:25:07,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,294 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,311 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]. [2024-01-30 14:25:07,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:25:07,362 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:25:07,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:25:07,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:25:07,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (1/1) ... [2024-01-30 14:25:07,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:25:07,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:25:07,402 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) [2024-01-30 14:25:07,441 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 [2024-01-30 14:25:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:25:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:25:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:25:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:25:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:25:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:25:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:25:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:25:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:25:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:25:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:25:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:25:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-30 14:25:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-30 14:25:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:25:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:25:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:25:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:25:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:25:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:25:07,460 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:25:07,538 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:25:07,540 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:25:07,814 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:25:07,814 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:25:07,908 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:25:07,908 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-30 14:25:07,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:25:07 BoogieIcfgContainer [2024-01-30 14:25:07,910 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:25:07,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:25:07,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:25:07,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:25:07,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:05" (1/4) ... [2024-01-30 14:25:07,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebe5e5a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:25:07, skipping insertion in model container [2024-01-30 14:25:07,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:25:06" (2/4) ... [2024-01-30 14:25:07,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebe5e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:25:07, skipping insertion in model container [2024-01-30 14:25:07,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:07" (3/4) ... [2024-01-30 14:25:07,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebe5e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:25:07, skipping insertion in model container [2024-01-30 14:25:07,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:25:07" (4/4) ... [2024-01-30 14:25:07,918 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure3.wvr.c [2024-01-30 14:25:07,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:25:07,934 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-01-30 14:25:07,934 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:25:08,004 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-30 14:25:08,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 52 transitions, 118 flow [2024-01-30 14:25:08,076 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-01-30 14:25:08,076 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-30 14:25:08,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 50 events. 2/50 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 121 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-01-30 14:25:08,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 52 transitions, 118 flow [2024-01-30 14:25:08,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 49 transitions, 110 flow [2024-01-30 14:25:08,092 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:25:08,097 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;@28c720be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:25:08,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-01-30 14:25:08,099 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:25:08,099 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:25:08,099 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:25:08,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:08,100 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:25:08,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 30 more)] === [2024-01-30 14:25:08,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:08,104 INFO L85 PathProgramCache]: Analyzing trace with hash 9663, now seen corresponding path program 1 times [2024-01-30 14:25:08,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:08,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995572907] [2024-01-30 14:25:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:08,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:08,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:08,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:08,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995572907] [2024-01-30 14:25:08,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995572907] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:08,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:08,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:25:08,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34917768] [2024-01-30 14:25:08,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:08,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:08,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:08,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:08,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:08,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 52 [2024-01-30 14:25:08,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:25:08,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:08,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 52 [2024-01-30 14:25:08,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:08,721 INFO L124 PetriNetUnfolderBase]: 253/522 cut-off events. [2024-01-30 14:25:08,721 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-01-30 14:25:08,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 968 conditions, 522 events. 253/522 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2749 event pairs, 189 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 860. Up to 415 conditions per place. [2024-01-30 14:25:08,728 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 28 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2024-01-30 14:25:08,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 162 flow [2024-01-30 14:25:08,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:08,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:08,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2024-01-30 14:25:08,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5448717948717948 [2024-01-30 14:25:08,740 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 110 flow. Second operand 3 states and 85 transitions. [2024-01-30 14:25:08,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 162 flow [2024-01-30 14:25:08,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 45 transitions, 154 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-30 14:25:08,749 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 98 flow [2024-01-30 14:25:08,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-01-30 14:25:08,754 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -6 predicate places. [2024-01-30 14:25:08,754 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 98 flow [2024-01-30 14:25:08,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:25:08,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:08,755 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:25:08,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:25:08,755 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 30 more)] === [2024-01-30 14:25:08,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:08,757 INFO L85 PathProgramCache]: Analyzing trace with hash 299882, now seen corresponding path program 1 times [2024-01-30 14:25:08,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:08,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618973689] [2024-01-30 14:25:08,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:08,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:08,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:08,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:08,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618973689] [2024-01-30 14:25:08,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618973689] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:08,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:08,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:25:08,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269831515] [2024-01-30 14:25:08,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:08,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:08,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:08,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:08,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:08,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-01-30 14:25:08,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:25:08,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:08,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-01-30 14:25:08,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:09,097 INFO L124 PetriNetUnfolderBase]: 265/635 cut-off events. [2024-01-30 14:25:09,097 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-30 14:25:09,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 635 events. 265/635 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3723 event pairs, 102 based on Foata normal form. 1/502 useless extension candidates. Maximal degree in co-relation 1101. Up to 232 conditions per place. [2024-01-30 14:25:09,100 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 38 selfloop transitions, 3 changer transitions 1/59 dead transitions. [2024-01-30 14:25:09,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 59 transitions, 213 flow [2024-01-30 14:25:09,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-01-30 14:25:09,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6730769230769231 [2024-01-30 14:25:09,105 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 98 flow. Second operand 3 states and 105 transitions. [2024-01-30 14:25:09,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 59 transitions, 213 flow [2024-01-30 14:25:09,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 59 transitions, 209 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:09,107 INFO L231 Difference]: Finished difference. Result has 49 places, 45 transitions, 112 flow [2024-01-30 14:25:09,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=49, PETRI_TRANSITIONS=45} [2024-01-30 14:25:09,108 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -5 predicate places. [2024-01-30 14:25:09,108 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 45 transitions, 112 flow [2024-01-30 14:25:09,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:25:09,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:09,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:25:09,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:25:09,111 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 30 more)] === [2024-01-30 14:25:09,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:09,123 INFO L85 PathProgramCache]: Analyzing trace with hash 9296662, now seen corresponding path program 1 times [2024-01-30 14:25:09,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:09,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173656532] [2024-01-30 14:25:09,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:09,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:09,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:09,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:09,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173656532] [2024-01-30 14:25:09,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173656532] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:09,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:09,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:25:09,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089233608] [2024-01-30 14:25:09,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:09,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:09,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:09,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:09,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:09,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 52 [2024-01-30 14:25:09,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-01-30 14:25:09,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:09,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 52 [2024-01-30 14:25:09,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:09,251 INFO L124 PetriNetUnfolderBase]: 167/428 cut-off events. [2024-01-30 14:25:09,252 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-01-30 14:25:09,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 797 conditions, 428 events. 167/428 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2466 event pairs, 155 based on Foata normal form. 6/371 useless extension candidates. Maximal degree in co-relation 376. Up to 314 conditions per place. [2024-01-30 14:25:09,254 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 21 selfloop transitions, 1 changer transitions 1/37 dead transitions. [2024-01-30 14:25:09,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 37 transitions, 138 flow [2024-01-30 14:25:09,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:09,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:09,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-01-30 14:25:09,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5705128205128205 [2024-01-30 14:25:09,260 INFO L175 Difference]: Start difference. First operand has 49 places, 45 transitions, 112 flow. Second operand 3 states and 89 transitions. [2024-01-30 14:25:09,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 37 transitions, 138 flow [2024-01-30 14:25:09,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 37 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:09,262 INFO L231 Difference]: Finished difference. Result has 42 places, 36 transitions, 85 flow [2024-01-30 14:25:09,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=42, PETRI_TRANSITIONS=36} [2024-01-30 14:25:09,263 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -12 predicate places. [2024-01-30 14:25:09,263 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 36 transitions, 85 flow [2024-01-30 14:25:09,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-01-30 14:25:09,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:09,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:25:09,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:25:09,264 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 30 more)] === [2024-01-30 14:25:09,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:09,265 INFO L85 PathProgramCache]: Analyzing trace with hash 33004639, now seen corresponding path program 1 times [2024-01-30 14:25:09,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:09,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532693939] [2024-01-30 14:25:09,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:09,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:09,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:09,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:09,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532693939] [2024-01-30 14:25:09,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532693939] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:09,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:09,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:25:09,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449195566] [2024-01-30 14:25:09,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:09,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:25:09,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:09,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:25:09,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:25:09,440 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-01-30 14:25:09,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 36 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-01-30 14:25:09,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:09,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-01-30 14:25:09,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:09,527 INFO L124 PetriNetUnfolderBase]: 167/414 cut-off events. [2024-01-30 14:25:09,527 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-01-30 14:25:09,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 768 conditions, 414 events. 167/414 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2274 event pairs, 4 based on Foata normal form. 24/408 useless extension candidates. Maximal degree in co-relation 760. Up to 291 conditions per place. [2024-01-30 14:25:09,529 INFO L140 encePairwiseOnDemand]: 47/52 looper letters, 27 selfloop transitions, 2 changer transitions 0/40 dead transitions. [2024-01-30 14:25:09,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 40 transitions, 152 flow [2024-01-30 14:25:09,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:25:09,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:25:09,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-01-30 14:25:09,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5336538461538461 [2024-01-30 14:25:09,530 INFO L175 Difference]: Start difference. First operand has 42 places, 36 transitions, 85 flow. Second operand 4 states and 111 transitions. [2024-01-30 14:25:09,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 40 transitions, 152 flow [2024-01-30 14:25:09,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 40 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:25:09,531 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 82 flow [2024-01-30 14:25:09,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2024-01-30 14:25:09,532 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -14 predicate places. [2024-01-30 14:25:09,532 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 82 flow [2024-01-30 14:25:09,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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) [2024-01-30 14:25:09,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:09,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:25:09,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:25:09,533 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 30 more)] === [2024-01-30 14:25:09,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:09,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1652458760, now seen corresponding path program 1 times [2024-01-30 14:25:09,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:09,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121447315] [2024-01-30 14:25:09,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:09,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:09,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:09,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121447315] [2024-01-30 14:25:09,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121447315] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:09,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:09,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:25:09,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847489827] [2024-01-30 14:25:09,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:09,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:25:09,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:09,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:25:09,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:25:09,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 52 [2024-01-30 14:25:09,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-01-30 14:25:09,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:09,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 52 [2024-01-30 14:25:09,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:09,739 INFO L124 PetriNetUnfolderBase]: 167/424 cut-off events. [2024-01-30 14:25:09,739 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-01-30 14:25:09,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 424 events. 167/424 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2410 event pairs, 9 based on Foata normal form. 24/412 useless extension candidates. Maximal degree in co-relation 783. Up to 232 conditions per place. [2024-01-30 14:25:09,741 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 37 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-01-30 14:25:09,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 203 flow [2024-01-30 14:25:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:25:09,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:25:09,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-01-30 14:25:09,742 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5673076923076923 [2024-01-30 14:25:09,742 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 82 flow. Second operand 4 states and 118 transitions. [2024-01-30 14:25:09,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 203 flow [2024-01-30 14:25:09,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 48 transitions, 198 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:09,743 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 79 flow [2024-01-30 14:25:09,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=79, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2024-01-30 14:25:09,744 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -15 predicate places. [2024-01-30 14:25:09,744 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 79 flow [2024-01-30 14:25:09,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2024-01-30 14:25:09,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:09,745 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:25:09,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:25:09,745 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 30 more)] === [2024-01-30 14:25:09,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:09,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1652697666, now seen corresponding path program 1 times [2024-01-30 14:25:09,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:09,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631003265] [2024-01-30 14:25:09,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:09,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:09,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:25:09,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:09,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631003265] [2024-01-30 14:25:09,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631003265] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:09,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:09,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:25:09,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906572716] [2024-01-30 14:25:09,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:09,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:25:09,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:09,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:25:09,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:25:09,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2024-01-30 14:25:09,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:25:09,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:09,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2024-01-30 14:25:09,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:09,964 INFO L124 PetriNetUnfolderBase]: 257/482 cut-off events. [2024-01-30 14:25:09,965 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-01-30 14:25:09,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 482 events. 257/482 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2299 event pairs, 19 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 1060. Up to 225 conditions per place. [2024-01-30 14:25:09,967 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 37 selfloop transitions, 3 changer transitions 0/44 dead transitions. [2024-01-30 14:25:09,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 44 transitions, 195 flow [2024-01-30 14:25:09,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:25:09,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:25:09,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 100 transitions. [2024-01-30 14:25:09,968 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4807692307692308 [2024-01-30 14:25:09,968 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 79 flow. Second operand 4 states and 100 transitions. [2024-01-30 14:25:09,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 44 transitions, 195 flow [2024-01-30 14:25:09,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 44 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:09,969 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 80 flow [2024-01-30 14:25:09,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2024-01-30 14:25:09,970 INFO L281 CegarLoopForPetriNet]: 54 programPoint places, -15 predicate places. [2024-01-30 14:25:09,970 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 80 flow [2024-01-30 14:25:09,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-30 14:25:09,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:09,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:25:09,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:25:09,971 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 30 more)] === [2024-01-30 14:25:09,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:09,971 INFO L85 PathProgramCache]: Analyzing trace with hash -305979566, now seen corresponding path program 1 times [2024-01-30 14:25:09,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:09,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020793216] [2024-01-30 14:25:09,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:09,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:25:09,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:25:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:25:10,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:25:10,001 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:25:10,002 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 33 remaining) [2024-01-30 14:25:10,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 33 remaining) [2024-01-30 14:25:10,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 33 remaining) [2024-01-30 14:25:10,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 33 remaining) [2024-01-30 14:25:10,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 33 remaining) [2024-01-30 14:25:10,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 33 remaining) [2024-01-30 14:25:10,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 33 remaining) [2024-01-30 14:25:10,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 33 remaining) [2024-01-30 14:25:10,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 33 remaining) [2024-01-30 14:25:10,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 33 remaining) [2024-01-30 14:25:10,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 33 remaining) [2024-01-30 14:25:10,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 33 remaining) [2024-01-30 14:25:10,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 33 remaining) [2024-01-30 14:25:10,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 33 remaining) [2024-01-30 14:25:10,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 33 remaining) [2024-01-30 14:25:10,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 33 remaining) [2024-01-30 14:25:10,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 33 remaining) [2024-01-30 14:25:10,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 33 remaining) [2024-01-30 14:25:10,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (14 of 33 remaining) [2024-01-30 14:25:10,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 33 remaining) [2024-01-30 14:25:10,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 33 remaining) [2024-01-30 14:25:10,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 33 remaining) [2024-01-30 14:25:10,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 33 remaining) [2024-01-30 14:25:10,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 33 remaining) [2024-01-30 14:25:10,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 33 remaining) [2024-01-30 14:25:10,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 33 remaining) [2024-01-30 14:25:10,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 33 remaining) [2024-01-30 14:25:10,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 33 remaining) [2024-01-30 14:25:10,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 33 remaining) [2024-01-30 14:25:10,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 33 remaining) [2024-01-30 14:25:10,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 33 remaining) [2024-01-30 14:25:10,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 33 remaining) [2024-01-30 14:25:10,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 33 remaining) [2024-01-30 14:25:10,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:25:10,009 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:25:10,014 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:25:10,014 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:25:10,028 INFO L503 ceAbstractionStarter]: Automizer considered 17 witness invariants [2024-01-30 14:25:10,029 INFO L504 ceAbstractionStarter]: WitnessConsidered=17 [2024-01-30 14:25:10,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:25:10 BasicIcfg [2024-01-30 14:25:10,029 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:25:10,030 INFO L158 Benchmark]: Toolchain (without parser) took 3098.32ms. Allocated memory was 176.2MB in the beginning and 260.0MB in the end (delta: 83.9MB). Free memory was 101.1MB in the beginning and 193.3MB in the end (delta: -92.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:25:10,030 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:25:10,030 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 176.2MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:25:10,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.95ms. Allocated memory is still 176.2MB. Free memory was 100.9MB in the beginning and 140.5MB in the end (delta: -39.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-01-30 14:25:10,031 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.40ms. Allocated memory is still 176.2MB. Free memory was 140.5MB in the beginning and 138.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:25:10,031 INFO L158 Benchmark]: Boogie Preprocessor took 82.96ms. Allocated memory is still 176.2MB. Free memory was 138.4MB in the beginning and 135.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:25:10,031 INFO L158 Benchmark]: RCFGBuilder took 547.67ms. Allocated memory is still 176.2MB. Free memory was 135.7MB in the beginning and 86.0MB in the end (delta: 49.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-01-30 14:25:10,031 INFO L158 Benchmark]: TraceAbstraction took 2116.55ms. Allocated memory was 176.2MB in the beginning and 260.0MB in the end (delta: 83.9MB). Free memory was 85.4MB in the beginning and 193.3MB in the end (delta: -108.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:25:10,032 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 176.2MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.95ms. Allocated memory is still 176.2MB. Free memory was 100.9MB in the beginning and 140.5MB in the end (delta: -39.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.40ms. Allocated memory is still 176.2MB. Free memory was 140.5MB in the beginning and 138.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.96ms. Allocated memory is still 176.2MB. Free memory was 138.4MB in the beginning and 135.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 547.67ms. Allocated memory is still 176.2MB. Free memory was 135.7MB in the beginning and 86.0MB in the end (delta: 49.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2116.55ms. Allocated memory was 176.2MB in the beginning and 260.0MB in the end (delta: 83.9MB). Free memory was 85.4MB in the beginning and 193.3MB in the end (delta: -108.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int N, counter, c; [L62] 0 pthread_t t1, t2; VAL [N=0, c=0, counter=0, t1={3:0}, t2={5:0}] [L64] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]]] [L64] 0 N = __VERIFIER_nondet_uint() [L65] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]]] [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={3:0}, t2={5:0}] [L41] 1 unsigned int i=0; VAL [_argptr={0:0}, _argptr={0:0}, c=1, counter=0, i=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]],BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[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] COND TRUE 1 i