./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-easy7.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/test-easy7.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/test-easy7.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-8857f20-m [2024-01-29 22:59:39,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:59:39,752 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:59:39,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:59:39,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:59:39,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:59:39,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:59:39,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:59:39,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:59:39,768 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:59:39,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:59:39,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:59:39,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:59:39,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:59:39,770 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:59:39,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:59:39,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:59:39,771 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:59:39,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:59:39,772 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:59:39,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:59:39,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:59:39,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:59:39,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:59:39,773 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:59:39,773 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:59:39,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:59:39,774 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:59:39,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:59:39,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:59:39,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:59:39,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:59:39,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:59:39,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:59:39,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:59:39,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:59:39,777 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:59:39,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:59:39,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:59:39,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:59:39,778 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:59:39,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:59:39,778 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:59:39,779 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:59:39,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:59:40,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:59:40,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:59:40,017 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:59:40,018 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:59:40,019 INFO L431 ainManager$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/test-easy7.wvr.yml/witness.yml [2024-01-29 22:59:40,090 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:59:40,090 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:59:40,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c [2024-01-29 22:59:41,164 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:59:41,311 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:59:41,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c [2024-01-29 22:59:41,323 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4954efc56/c5631eaf09584479a36a0e7ab0bdf7bf/FLAG782cb520c [2024-01-29 22:59:41,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4954efc56/c5631eaf09584479a36a0e7ab0bdf7bf [2024-01-29 22:59:41,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:59:41,357 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:59:41,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:59:41,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:59:41,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:59:41,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:40" (1/2) ... [2024-01-29 22:59:41,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdfd70f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:41, skipping insertion in model container [2024-01-29 22:59:41,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:40" (1/2) ... [2024-01-29 22:59:41,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@73584980 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:41, skipping insertion in model container [2024-01-29 22:59:41,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:59:41" (2/2) ... [2024-01-29 22:59:41,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdfd70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41, skipping insertion in model container [2024-01-29 22:59:41,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:59:41" (2/2) ... [2024-01-29 22:59:41,367 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:59:41,383 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:59:41,384 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] x2 == 0U [2024-01-29 22:59:41,384 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 22:59:41,384 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-29 22:59:41,384 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 22:59:41,384 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 22:59:41,385 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-29 22:59:41,385 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (0LL - (long long )x1) + (long long )x2 >= 0LL [2024-01-29 22:59:41,385 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] ((0LL - (long long )x1) + (long long )x2 >= 0LL) && ((long long )x1 - (long long )x2 >= 0LL) [2024-01-29 22:59:41,385 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] ((0LL - (long long )x1) + (long long )x2 >= 0LL) && ((long long )x1 + (long long )x2 >= 0LL) [2024-01-29 22:59:41,385 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] ((0LL - (long long )x1) + (long long )x2 >= 0LL) && (x2 == 0U) [2024-01-29 22:59:41,385 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] ((0LL - (long long )x1) + (long long )x2 >= 0LL) && (x1 == 0U) [2024-01-29 22:59:41,385 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] ((0LL - (long long )x1) + (long long )x2 >= 0LL) && ((0LL - (long long )x1) - (long long )x2 >= 0LL) [2024-01-29 22:59:41,385 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-29 22:59:41,393 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (x2 == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:41,393 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] x2 == 0U [2024-01-29 22:59:41,393 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-29 22:59:41,394 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 22:59:41,394 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-29 22:59:41,413 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:59:41,573 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/test-easy7.wvr.c[1898,1911] [2024-01-29 22:59:41,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:59:41,586 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 [2024-01-29 22:59:41,632 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/test-easy7.wvr.c[1898,1911] [2024-01-29 22:59:41,633 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:59:41,645 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:59:41,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41 WrapperNode [2024-01-29 22:59:41,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:59:41,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:59:41,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:59:41,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:59:41,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,696 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-01-29 22:59:41,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:59:41,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:59:41,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:59:41,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:59:41,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,743 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-29 22:59:41,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:59:41,767 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:59:41,768 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:59:41,768 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:59:41,769 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (1/1) ... [2024-01-29 22:59:41,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:59:41,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:59:41,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:59:41,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:59:41,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:59:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:59:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:59:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:59:41,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:59:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:59:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:59:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:59:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:59:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:59:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:59:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:59:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:59:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:59:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:59:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:59:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:59:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:59:41,878 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:59:42,006 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:59:42,009 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:59:42,249 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:59:42,250 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:59:42,392 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:59:42,392 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 22:59:42,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:42 BoogieIcfgContainer [2024-01-29 22:59:42,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:59:42,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:59:42,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:59:42,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:59:42,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:40" (1/4) ... [2024-01-29 22:59:42,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de5bfa5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:59:42, skipping insertion in model container [2024-01-29 22:59:42,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:59:41" (2/4) ... [2024-01-29 22:59:42,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de5bfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:59:42, skipping insertion in model container [2024-01-29 22:59:42,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:41" (3/4) ... [2024-01-29 22:59:42,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de5bfa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:59:42, skipping insertion in model container [2024-01-29 22:59:42,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:42" (4/4) ... [2024-01-29 22:59:42,399 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy7.wvr.c [2024-01-29 22:59:42,412 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:59:42,413 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2024-01-29 22:59:42,413 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:59:42,471 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-29 22:59:42,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 51 transitions, 116 flow [2024-01-29 22:59:42,526 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2024-01-29 22:59:42,528 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:59:42,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 49 events. 0/49 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-29 22:59:42,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 51 transitions, 116 flow [2024-01-29 22:59:42,532 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 48 transitions, 108 flow [2024-01-29 22:59:42,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:59:42,552 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;@7608b9c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:59:42,552 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-01-29 22:59:42,557 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:59:42,558 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:59:42,558 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:59:42,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:42,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:59:42,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-01-29 22:59:42,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:42,564 INFO L85 PathProgramCache]: Analyzing trace with hash 8563, now seen corresponding path program 1 times [2024-01-29 22:59:42,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:42,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523918313] [2024-01-29 22:59:42,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:42,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:42,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:42,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:42,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523918313] [2024-01-29 22:59:42,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523918313] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:42,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:42,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:59:42,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602582060] [2024-01-29 22:59:42,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:42,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:42,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:42,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:42,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:42,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 51 [2024-01-29 22:59:42,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:42,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:42,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 51 [2024-01-29 22:59:42,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:42,977 INFO L124 PetriNetUnfolderBase]: 123/310 cut-off events. [2024-01-29 22:59:42,977 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-01-29 22:59:42,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 310 events. 123/310 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1412 event pairs, 123 based on Foata normal form. 5/309 useless extension candidates. Maximal degree in co-relation 499. Up to 239 conditions per place. [2024-01-29 22:59:42,983 INFO L140 encePairwiseOnDemand]: 43/51 looper letters, 21 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2024-01-29 22:59:42,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 42 transitions, 142 flow [2024-01-29 22:59:42,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:42,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:42,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-01-29 22:59:42,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6013071895424836 [2024-01-29 22:59:42,997 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 108 flow. Second operand 3 states and 92 transitions. [2024-01-29 22:59:42,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 42 transitions, 142 flow [2024-01-29 22:59:43,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 42 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 22:59:43,002 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 92 flow [2024-01-29 22:59:43,003 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2024-01-29 22:59:43,006 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -8 predicate places. [2024-01-29 22:59:43,007 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 92 flow [2024-01-29 22:59:43,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:43,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:43,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:43,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:59:43,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-01-29 22:59:43,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:43,008 INFO L85 PathProgramCache]: Analyzing trace with hash 724911810, now seen corresponding path program 1 times [2024-01-29 22:59:43,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:43,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559463436] [2024-01-29 22:59:43,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:43,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:43,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:43,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:43,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559463436] [2024-01-29 22:59:43,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559463436] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:43,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:43,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:43,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839451277] [2024-01-29 22:59:43,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:43,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:43,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:43,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:43,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:43,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 51 [2024-01-29 22:59:43,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:43,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:43,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 51 [2024-01-29 22:59:43,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:43,193 INFO L124 PetriNetUnfolderBase]: 141/349 cut-off events. [2024-01-29 22:59:43,193 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-29 22:59:43,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 349 events. 141/349 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1622 event pairs, 123 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 619. Up to 237 conditions per place. [2024-01-29 22:59:43,196 INFO L140 encePairwiseOnDemand]: 46/51 looper letters, 29 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2024-01-29 22:59:43,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 173 flow [2024-01-29 22:59:43,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:43,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-01-29 22:59:43,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6928104575163399 [2024-01-29 22:59:43,198 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 92 flow. Second operand 3 states and 106 transitions. [2024-01-29 22:59:43,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 173 flow [2024-01-29 22:59:43,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 49 transitions, 169 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:43,201 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 94 flow [2024-01-29 22:59:43,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2024-01-29 22:59:43,208 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -9 predicate places. [2024-01-29 22:59:43,209 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 94 flow [2024-01-29 22:59:43,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:43,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:43,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:43,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:59:43,210 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-01-29 22:59:43,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:43,210 INFO L85 PathProgramCache]: Analyzing trace with hash 752485377, now seen corresponding path program 1 times [2024-01-29 22:59:43,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:43,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824722811] [2024-01-29 22:59:43,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:43,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:43,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:43,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:43,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824722811] [2024-01-29 22:59:43,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824722811] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:43,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:43,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:59:43,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465930079] [2024-01-29 22:59:43,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:43,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:43,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:43,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:43,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:43,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 51 [2024-01-29 22:59:43,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 94 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:43,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:43,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 51 [2024-01-29 22:59:43,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:43,483 INFO L124 PetriNetUnfolderBase]: 123/295 cut-off events. [2024-01-29 22:59:43,484 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:59:43,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 295 events. 123/295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1273 event pairs, 5 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 258. Up to 216 conditions per place. [2024-01-29 22:59:43,489 INFO L140 encePairwiseOnDemand]: 45/51 looper letters, 28 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2024-01-29 22:59:43,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 45 transitions, 163 flow [2024-01-29 22:59:43,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:43,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:43,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-01-29 22:59:43,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6372549019607843 [2024-01-29 22:59:43,495 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 94 flow. Second operand 4 states and 130 transitions. [2024-01-29 22:59:43,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 45 transitions, 163 flow [2024-01-29 22:59:43,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 45 transitions, 155 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:43,500 INFO L231 Difference]: Finished difference. Result has 43 places, 37 transitions, 82 flow [2024-01-29 22:59:43,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=43, PETRI_TRANSITIONS=37} [2024-01-29 22:59:43,501 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, -12 predicate places. [2024-01-29 22:59:43,502 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 82 flow [2024-01-29 22:59:43,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:43,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:43,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:43,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:59:43,503 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 29 more)] === [2024-01-29 22:59:43,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:43,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1583951171, now seen corresponding path program 1 times [2024-01-29 22:59:43,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:43,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331467070] [2024-01-29 22:59:43,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:43,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:59:43,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:59:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:59:43,545 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:59:43,547 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:59:43,550 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 32 remaining) [2024-01-29 22:59:43,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 32 remaining) [2024-01-29 22:59:43,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 32 remaining) [2024-01-29 22:59:43,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 32 remaining) [2024-01-29 22:59:43,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 32 remaining) [2024-01-29 22:59:43,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 32 remaining) [2024-01-29 22:59:43,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 32 remaining) [2024-01-29 22:59:43,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 32 remaining) [2024-01-29 22:59:43,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 32 remaining) [2024-01-29 22:59:43,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 32 remaining) [2024-01-29 22:59:43,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 32 remaining) [2024-01-29 22:59:43,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 32 remaining) [2024-01-29 22:59:43,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 32 remaining) [2024-01-29 22:59:43,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 32 remaining) [2024-01-29 22:59:43,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 32 remaining) [2024-01-29 22:59:43,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 32 remaining) [2024-01-29 22:59:43,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 32 remaining) [2024-01-29 22:59:43,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 32 remaining) [2024-01-29 22:59:43,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 32 remaining) [2024-01-29 22:59:43,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (12 of 32 remaining) [2024-01-29 22:59:43,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 32 remaining) [2024-01-29 22:59:43,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 32 remaining) [2024-01-29 22:59:43,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 32 remaining) [2024-01-29 22:59:43,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 32 remaining) [2024-01-29 22:59:43,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 32 remaining) [2024-01-29 22:59:43,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 32 remaining) [2024-01-29 22:59:43,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 32 remaining) [2024-01-29 22:59:43,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 32 remaining) [2024-01-29 22:59:43,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 32 remaining) [2024-01-29 22:59:43,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 32 remaining) [2024-01-29 22:59:43,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 32 remaining) [2024-01-29 22:59:43,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 32 remaining) [2024-01-29 22:59:43,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:59:43,563 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-01-29 22:59:43,570 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:59:43,570 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:59:43,591 INFO L503 ceAbstractionStarter]: Automizer considered 18 witness invariants [2024-01-29 22:59:43,591 INFO L504 ceAbstractionStarter]: WitnessConsidered=18 [2024-01-29 22:59:43,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:59:43 BasicIcfg [2024-01-29 22:59:43,592 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:59:43,593 INFO L158 Benchmark]: Toolchain (without parser) took 2235.93ms. Allocated memory was 195.0MB in the beginning and 245.4MB in the end (delta: 50.3MB). Free memory was 158.6MB in the beginning and 156.8MB in the end (delta: 1.8MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2024-01-29 22:59:43,593 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 195.0MB. Free memory is still 155.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:59:43,593 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 195.0MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:59:43,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.70ms. Allocated memory is still 195.0MB. Free memory was 158.4MB in the beginning and 150.9MB in the end (delta: 7.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-01-29 22:59:43,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.64ms. Allocated memory is still 195.0MB. Free memory was 150.9MB in the beginning and 148.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:59:43,594 INFO L158 Benchmark]: Boogie Preprocessor took 62.32ms. Allocated memory is still 195.0MB. Free memory was 148.8MB in the beginning and 146.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:59:43,594 INFO L158 Benchmark]: RCFGBuilder took 625.37ms. Allocated memory is still 195.0MB. Free memory was 146.7MB in the beginning and 136.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-01-29 22:59:43,595 INFO L158 Benchmark]: TraceAbstraction took 1198.21ms. Allocated memory was 195.0MB in the beginning and 245.4MB in the end (delta: 50.3MB). Free memory was 135.5MB in the beginning and 156.8MB in the end (delta: -21.3MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2024-01-29 22:59:43,596 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 195.0MB. Free memory is still 155.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.21ms. Allocated memory is still 195.0MB. Free memory is still 152.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.70ms. Allocated memory is still 195.0MB. Free memory was 158.4MB in the beginning and 150.9MB in the end (delta: 7.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.64ms. Allocated memory is still 195.0MB. Free memory was 150.9MB in the beginning and 148.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.32ms. Allocated memory is still 195.0MB. Free memory was 148.8MB in the beginning and 146.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 625.37ms. Allocated memory is still 195.0MB. Free memory was 146.7MB in the beginning and 136.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1198.21ms. Allocated memory was 195.0MB in the beginning and 245.4MB in the end (delta: 50.3MB). Free memory was 135.5MB in the beginning and 156.8MB in the end (delta: -21.3MB). Peak memory consumption was 31.1MB. 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 x1, x2; [L59] 0 pthread_t t1, t2; VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]]]]] VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]],BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]]]] VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]],BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]]] VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x1]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]]]]] VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[x1]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]]]]] VAL [t1={3:0}, t2={5:0}, x1=0, x2=0] [L61] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x2]]],IntegerLiteral[0LL]]]] [L61] 0 x1 = __VERIFIER_nondet_uint() [L62] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]] [L62] 0 x2 = __VERIFIER_nondet_uint() [L63] CALL 0 assume_abort_if_not(x1 == x2) [L35] COND FALSE 0 !(!cond) [L63] RET 0 assume_abort_if_not(x1 == x2) [L66] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={3:0}, t2={5:0}, x1=0, x2=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L41] 1 x2++ VAL [_argptr={0:0}, _argptr={0:0}, x1=0, x2=1] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L42] 1 x2++ VAL [_argptr={0:0}, _argptr={0:0}, x1=0, x2=2] [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]] VAL [_argptr={0:0}, _argptr={0:0}, x1=0, x2=2] - UnprovableResult [Line: 41]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 80 locations, 32 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 75 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 15 mSDtfsCounter, 186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-29 22:59:43,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE