./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i --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/36-apron_41-threadenter-no-locals_unknown_1_pos.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fced0e87 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/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/36-apron_41-threadenter-no-locals_unknown_1_pos.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-wip.fs.extract-columns-fced0e8-m [2024-01-31 16:27:58,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:27:58,654 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:27:58,659 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:27:58,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:27:58,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:27:58,683 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:27:58,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:27:58,684 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:27:58,686 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:27:58,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:27:58,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:27:58,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:27:58,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:27:58,689 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:27:58,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:27:58,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:27:58,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:27:58,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:27:58,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:27:58,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:27:58,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:27:58,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:27:58,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:27:58,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:27:58,692 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:27:58,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:27:58,692 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:27:58,693 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:27:58,693 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:27:58,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:27:58,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:27:58,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:27:58,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:27:58,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:27:58,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:27:58,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:27:58,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:27:58,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:27:58,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:27:58,696 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:27:58,696 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:27:58,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:27:58,696 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:27:58,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:27:58,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:27:58,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:27:58,924 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:27:58,925 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:27:58,926 INFO L431 ainManager$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/36-apron_41-threadenter-no-locals_unknown_1_pos.yml/witness.yml [2024-01-31 16:27:59,016 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:27:59,017 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:27:59,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2024-01-31 16:28:00,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:28:00,261 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:28:00,262 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2024-01-31 16:28:00,278 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90d804f91/c0b00ab5c39c49a5b0ccecc93ac0ed66/FLAGbe40db4e7 [2024-01-31 16:28:00,290 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90d804f91/c0b00ab5c39c49a5b0ccecc93ac0ed66 [2024-01-31 16:28:00,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:28:00,292 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:28:00,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:28:00,295 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:28:00,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:28:00,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:27:59" (1/2) ... [2024-01-31 16:28:00,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef33d6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:28:00, skipping insertion in model container [2024-01-31 16:28:00,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:27:59" (1/2) ... [2024-01-31 16:28:00,301 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@371cb3b5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:28:00, skipping insertion in model container [2024-01-31 16:28:00,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:28:00" (2/2) ... [2024-01-31 16:28:00,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef33d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00, skipping insertion in model container [2024-01-31 16:28:00,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:28:00" (2/2) ... [2024-01-31 16:28:00,302 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:28:00,323 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:28:00,324 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-31 16:28:00,325 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (3 == x) && (x == 3) [2024-01-31 16:28:00,325 INFO L98 nessWitnessExtractor]: Location invariant before [L683-L683] (unsigned long )arg == 0UL [2024-01-31 16:28:00,325 INFO L98 nessWitnessExtractor]: Location invariant after [L683-L683] (unsigned long )arg == 0UL [2024-01-31 16:28:00,325 INFO L98 nessWitnessExtractor]: Location invariant before [L684-L684] (unsigned long )arg == 0UL [2024-01-31 16:28:00,326 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (3 == x) && (x == 3) [2024-01-31 16:28:00,364 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:28:00,477 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2024-01-31 16:28:00,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:28:00,641 INFO L204 MainTranslator]: Completed pre-run [2024-01-31 16:28:00,649 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2024-01-31 16:28:00,672 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-01-31 16:28:00,675 WARN L424 MainDispatcher]: Unable to annotate x = __VERIFIER_nondet_int() with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-31 16:28:00,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:28:00,725 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:28:00,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00 WrapperNode [2024-01-31 16:28:00,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:28:00,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:28:00,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:28:00,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:28:00,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,773 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2024-01-31 16:28:00,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:28:00,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:28:00,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:28:00,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:28:00,781 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,785 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,798 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [2, 1]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-01-31 16:28:00,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,807 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,809 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,821 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:28:00,822 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:28:00,822 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:28:00,822 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:28:00,823 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (1/1) ... [2024-01-31 16:28:00,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:28:00,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:28:00,844 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) [2024-01-31 16:28:00,860 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 [2024-01-31 16:28:00,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:28:00,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:28:00,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:28:00,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:28:00,875 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-31 16:28:00,875 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-31 16:28:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:28:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:28:00,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:28:00,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:28:00,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:28:00,878 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 16:28:00,988 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:28:00,989 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:28:01,059 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:28:01,060 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:28:01,108 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:28:01,109 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-31 16:28:01,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:28:01 BoogieIcfgContainer [2024-01-31 16:28:01,109 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:28:01,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:28:01,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:28:01,116 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:28:01,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:27:59" (1/4) ... [2024-01-31 16:28:01,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b7a6a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:28:01, skipping insertion in model container [2024-01-31 16:28:01,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:28:00" (2/4) ... [2024-01-31 16:28:01,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b7a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:28:01, skipping insertion in model container [2024-01-31 16:28:01,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:28:00" (3/4) ... [2024-01-31 16:28:01,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b7a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:28:01, skipping insertion in model container [2024-01-31 16:28:01,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:28:01" (4/4) ... [2024-01-31 16:28:01,123 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2024-01-31 16:28:01,137 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:28:01,137 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-01-31 16:28:01,137 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:28:01,171 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:28:01,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 18 transitions, 40 flow [2024-01-31 16:28:01,209 INFO L124 PetriNetUnfolderBase]: 1/17 cut-off events. [2024-01-31 16:28:01,214 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:28:01,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 17 events. 1/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 13. Up to 2 conditions per place. [2024-01-31 16:28:01,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 21 places, 18 transitions, 40 flow [2024-01-31 16:28:01,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 20 places, 17 transitions, 37 flow [2024-01-31 16:28:01,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:28:01,243 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;@34655e2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:28:01,244 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-01-31 16:28:01,246 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:28:01,246 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-31 16:28:01,246 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:28:01,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:28:01,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-31 16:28:01,247 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-01-31 16:28:01,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:28:01,251 INFO L85 PathProgramCache]: Analyzing trace with hash 4023, now seen corresponding path program 1 times [2024-01-31 16:28:01,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:28:01,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349102578] [2024-01-31 16:28:01,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:28:01,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:28:01,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:28:01,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:28:01,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:28:01,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349102578] [2024-01-31 16:28:01,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349102578] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:28:01,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:28:01,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-31 16:28:01,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029451448] [2024-01-31 16:28:01,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:28:01,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:28:01,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:28:01,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:28:01,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:28:01,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 18 [2024-01-31 16:28:01,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 17 transitions, 37 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-01-31 16:28:01,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:28:01,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 18 [2024-01-31 16:28:01,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:28:01,453 INFO L124 PetriNetUnfolderBase]: 8/35 cut-off events. [2024-01-31 16:28:01,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:28:01,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 35 events. 8/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 79 event pairs, 4 based on Foata normal form. 3/36 useless extension candidates. Maximal degree in co-relation 54. Up to 16 conditions per place. [2024-01-31 16:28:01,456 INFO L140 encePairwiseOnDemand]: 13/18 looper letters, 9 selfloop transitions, 2 changer transitions 2/18 dead transitions. [2024-01-31 16:28:01,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 18 transitions, 65 flow [2024-01-31 16:28:01,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:28:01,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:28:01,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2024-01-31 16:28:01,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2024-01-31 16:28:01,466 INFO L175 Difference]: Start difference. First operand has 20 places, 17 transitions, 37 flow. Second operand 3 states and 35 transitions. [2024-01-31 16:28:01,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 18 transitions, 65 flow [2024-01-31 16:28:01,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 18 transitions, 64 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-31 16:28:01,470 INFO L231 Difference]: Finished difference. Result has 19 places, 13 transitions, 32 flow [2024-01-31 16:28:01,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=32, PETRI_PLACES=19, PETRI_TRANSITIONS=13} [2024-01-31 16:28:01,474 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -1 predicate places. [2024-01-31 16:28:01,475 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 13 transitions, 32 flow [2024-01-31 16:28:01,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-01-31 16:28:01,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:28:01,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-31 16:28:01,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:28:01,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-01-31 16:28:01,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:28:01,476 INFO L85 PathProgramCache]: Analyzing trace with hash 119989849, now seen corresponding path program 1 times [2024-01-31 16:28:01,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:28:01,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289586104] [2024-01-31 16:28:01,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:28:01,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:28:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:28:01,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:28:01,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:28:01,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289586104] [2024-01-31 16:28:01,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289586104] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:28:01,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:28:01,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:28:01,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369124294] [2024-01-31 16:28:01,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:28:01,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:28:01,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:28:01,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:28:01,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:28:01,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 18 [2024-01-31 16:28:01,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-01-31 16:28:01,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:28:01,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 18 [2024-01-31 16:28:01,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:28:01,700 INFO L124 PetriNetUnfolderBase]: 6/29 cut-off events. [2024-01-31 16:28:01,700 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-31 16:28:01,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 29 events. 6/29 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 63 event pairs, 0 based on Foata normal form. 3/29 useless extension candidates. Maximal degree in co-relation 47. Up to 15 conditions per place. [2024-01-31 16:28:01,701 INFO L140 encePairwiseOnDemand]: 14/18 looper letters, 7 selfloop transitions, 2 changer transitions 1/13 dead transitions. [2024-01-31 16:28:01,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 13 transitions, 54 flow [2024-01-31 16:28:01,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:28:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:28:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2024-01-31 16:28:01,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-01-31 16:28:01,702 INFO L175 Difference]: Start difference. First operand has 19 places, 13 transitions, 32 flow. Second operand 4 states and 36 transitions. [2024-01-31 16:28:01,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 13 transitions, 54 flow [2024-01-31 16:28:01,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 48 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:28:01,703 INFO L231 Difference]: Finished difference. Result has 17 places, 10 transitions, 26 flow [2024-01-31 16:28:01,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=26, PETRI_PLACES=17, PETRI_TRANSITIONS=10} [2024-01-31 16:28:01,703 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, -3 predicate places. [2024-01-31 16:28:01,703 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 10 transitions, 26 flow [2024-01-31 16:28:01,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-01-31 16:28:01,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:28:01,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-31 16:28:01,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:28:01,704 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2024-01-31 16:28:01,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:28:01,704 INFO L85 PathProgramCache]: Analyzing trace with hash -653867812, now seen corresponding path program 1 times [2024-01-31 16:28:01,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:28:01,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683449121] [2024-01-31 16:28:01,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:28:01,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:28:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:28:01,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-31 16:28:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:28:01,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-31 16:28:01,744 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-31 16:28:01,745 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2024-01-31 16:28:01,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 9 remaining) [2024-01-31 16:28:01,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 9 remaining) [2024-01-31 16:28:01,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2024-01-31 16:28:01,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 9 remaining) [2024-01-31 16:28:01,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2024-01-31 16:28:01,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 9 remaining) [2024-01-31 16:28:01,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 9 remaining) [2024-01-31 16:28:01,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 9 remaining) [2024-01-31 16:28:01,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:28:01,749 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-01-31 16:28:01,753 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-31 16:28:01,754 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-31 16:28:01,767 INFO L503 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-01-31 16:28:01,767 INFO L504 ceAbstractionStarter]: WitnessConsidered=4 [2024-01-31 16:28:01,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 04:28:01 BasicIcfg [2024-01-31 16:28:01,768 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-31 16:28:01,768 INFO L158 Benchmark]: Toolchain (without parser) took 1476.13ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 70.8MB in the beginning and 158.8MB in the end (delta: -88.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:28:01,769 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 96.3MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:28:01,769 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 144.7MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:28:01,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.01ms. Allocated memory is still 144.7MB. Free memory was 70.6MB in the beginning and 105.5MB in the end (delta: -34.9MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2024-01-31 16:28:01,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.30ms. Allocated memory is still 144.7MB. Free memory was 105.5MB in the beginning and 103.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:28:01,770 INFO L158 Benchmark]: Boogie Preprocessor took 47.35ms. Allocated memory is still 144.7MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-31 16:28:01,770 INFO L158 Benchmark]: RCFGBuilder took 286.99ms. Allocated memory is still 144.7MB. Free memory was 101.8MB in the beginning and 86.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-01-31 16:28:01,771 INFO L158 Benchmark]: TraceAbstraction took 657.66ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 86.2MB in the beginning and 158.8MB in the end (delta: -72.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-31 16:28:01,772 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 0.14ms. Allocated memory is still 144.7MB. Free memory was 96.4MB in the beginning and 96.3MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 144.7MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.01ms. Allocated memory is still 144.7MB. Free memory was 70.6MB in the beginning and 105.5MB in the end (delta: -34.9MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.30ms. Allocated memory is still 144.7MB. Free memory was 105.5MB in the beginning and 103.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.35ms. Allocated memory is still 144.7MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.99ms. Allocated memory is still 144.7MB. Free memory was 101.8MB in the beginning and 86.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 657.66ms. Allocated memory was 144.7MB in the beginning and 199.2MB in the end (delta: 54.5MB). Free memory was 86.2MB in the beginning and 158.8MB in the end (delta: -72.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; [L689] 0 pthread_t id; VAL [id={3:0}, x=3] [L690] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IntegerLiteral[3],IdentifierExpression[x]],BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[3]]]]] [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: 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: 684]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 29 locations, 9 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: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2024-01-31 16:28:01,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE