./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-20_10-08-36.files/protection-local/13-privatized_67-pthread_cond_wait_unknown_1_pos.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da67795f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i ./goblint.2024-08-20_10-08-36.files/protection-local/13-privatized_67-pthread_cond_wait_unknown_1_pos.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_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-tmp.dk.goblint-eval-da67795-m [2024-08-27 14:32:25,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-27 14:32:26,042 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-27 14:32:26,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-27 14:32:26,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-27 14:32:26,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-27 14:32:26,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-27 14:32:26,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-27 14:32:26,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-27 14:32:26,071 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-27 14:32:26,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-27 14:32:26,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-27 14:32:26,072 INFO L153 SettingsManager]: * Use SBE=true [2024-08-27 14:32:26,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-27 14:32:26,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-27 14:32:26,074 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-27 14:32:26,074 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-27 14:32:26,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-27 14:32:26,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-27 14:32:26,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-27 14:32:26,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-27 14:32:26,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-27 14:32:26,078 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-27 14:32:26,078 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-27 14:32:26,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-27 14:32:26,079 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-27 14:32:26,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-27 14:32:26,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-27 14:32:26,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-27 14:32:26,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-27 14:32:26,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 14:32:26,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-27 14:32:26,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-27 14:32:26,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-27 14:32:26,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-27 14:32:26,080 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-27 14:32:26,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-27 14:32:26,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-27 14:32:26,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-27 14:32:26,081 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-27 14:32:26,081 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-27 14:32:26,082 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-27 14:32:26,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-27 14:32:26,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-27 14:32:26,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-27 14:32:26,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-27 14:32:26,318 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-27 14:32:26,319 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-27 14:32:26,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-20_10-08-36.files/protection-local/13-privatized_67-pthread_cond_wait_unknown_1_pos.yml/witness.yml [2024-08-27 14:32:26,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-27 14:32:26,364 INFO L274 PluginConnector]: CDTParser initialized [2024-08-27 14:32:26,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2024-08-27 14:32:27,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-27 14:32:27,736 INFO L384 CDTParser]: Found 1 translation units. [2024-08-27 14:32:27,743 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2024-08-27 14:32:27,759 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a961d55df/6de97860707d4a00bb06c3a21099efc8/FLAGd956dd16c [2024-08-27 14:32:28,107 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a961d55df/6de97860707d4a00bb06c3a21099efc8 [2024-08-27 14:32:28,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-27 14:32:28,108 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-27 14:32:28,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-27 14:32:28,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-27 14:32:28,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-27 14:32:28,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 02:32:26" (1/2) ... [2024-08-27 14:32:28,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4143a7c6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 02:32:28, skipping insertion in model container [2024-08-27 14:32:28,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 02:32:26" (1/2) ... [2024-08-27 14:32:28,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@299e17e3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.08 02:32:28, skipping insertion in model container [2024-08-27 14:32:28,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:32:28" (2/2) ... [2024-08-27 14:32:28,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4143a7c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28, skipping insertion in model container [2024-08-27 14:32:28,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:32:28" (2/2) ... [2024-08-27 14:32:28,115 INFO L85 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-27 14:32:28,129 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-08-27 14:32:28,130 INFO L1541 ArrayList]: Location invariant before [L1356-L1356] g == 0 || g == 1 [2024-08-27 14:32:28,130 INFO L1541 ArrayList]: Location invariant before [L1365-L1365] g == 0 || g == 1 [2024-08-27 14:32:28,161 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-27 14:32:28,299 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2024-08-27 14:32:28,503 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 14:32:28,518 INFO L202 MainTranslator]: Completed pre-run [2024-08-27 14:32:28,532 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] Start Parsing Local Start Parsing Local [2024-08-27 14:32:28,603 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-27 14:32:28,665 INFO L206 MainTranslator]: Completed translation [2024-08-27 14:32:28,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28 WrapperNode [2024-08-27 14:32:28,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-27 14:32:28,666 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-08-27 14:32:28,667 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-08-27 14:32:28,667 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-08-27 14:32:28,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (1/1) ... [2024-08-27 14:32:28,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (1/1) ... [2024-08-27 14:32:28,722 INFO L138 Inliner]: procedures = 354, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2024-08-27 14:32:28,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-08-27 14:32:28,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-27 14:32:28,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-27 14:32:28,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-27 14:32:28,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (1/1) ... [2024-08-27 14:32:28,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (1/1) ... [2024-08-27 14:32:28,739 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (1/1) ... [2024-08-27 14:32:28,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (1/1) ... [2024-08-27 14:32:28,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (1/1) ... [2024-08-27 14:32:28,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (1/1) ... [2024-08-27 14:32:28,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (1/1) ... [2024-08-27 14:32:28,763 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (1/1) ... [2024-08-27 14:32:28,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-27 14:32:28,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-08-27 14:32:28,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-08-27 14:32:28,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-08-27 14:32:28,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (1/1) ... [2024-08-27 14:32:28,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-27 14:32:28,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 14:32:28,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-08-27 14:32:28,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-08-27 14:32:28,829 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-08-27 14:32:28,829 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-08-27 14:32:28,829 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-08-27 14:32:28,829 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-08-27 14:32:28,829 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-08-27 14:32:28,829 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-08-27 14:32:28,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-27 14:32:28,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-08-27 14:32:28,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-27 14:32:28,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-27 14:32:28,831 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-08-27 14:32:29,010 INFO L242 CfgBuilder]: Building ICFG [2024-08-27 14:32:29,011 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-27 14:32:29,133 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-08-27 14:32:29,133 INFO L291 CfgBuilder]: Performing block encoding [2024-08-27 14:32:29,196 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-27 14:32:29,196 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-27 14:32:29,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:32:29 BoogieIcfgContainer [2024-08-27 14:32:29,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-08-27 14:32:29,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-27 14:32:29,199 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-27 14:32:29,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-27 14:32:29,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.08 02:32:26" (1/4) ... [2024-08-27 14:32:29,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a74a9d8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.08 02:32:29, skipping insertion in model container [2024-08-27 14:32:29,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 02:32:28" (2/4) ... [2024-08-27 14:32:29,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a74a9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 02:32:29, skipping insertion in model container [2024-08-27 14:32:29,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:32:28" (3/4) ... [2024-08-27 14:32:29,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a74a9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 02:32:29, skipping insertion in model container [2024-08-27 14:32:29,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:32:29" (4/4) ... [2024-08-27 14:32:29,204 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2024-08-27 14:32:29,217 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-27 14:32:29,218 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-08-27 14:32:29,218 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-08-27 14:32:29,245 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-08-27 14:32:29,275 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 14:32:29,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-08-27 14:32:29,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-08-27 14:32:29,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-08-27 14:32:29,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-08-27 14:32:29,310 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-08-27 14:32:29,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == f2Thread1of1ForFork1 ======== [2024-08-27 14:32:29,327 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=PARTIAL_ORDER_FA, 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;@12b08a41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-27 14:32:29,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-27 14:32:29,399 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [f2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, f2Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 14:32:29,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 14:32:29,403 INFO L85 PathProgramCache]: Analyzing trace with hash 261659576, now seen corresponding path program 1 times [2024-08-27 14:32:29,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 14:32:29,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535422406] [2024-08-27 14:32:29,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 14:32:29,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 14:32:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 14:32:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 14:32:29,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 14:32:29,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535422406] [2024-08-27 14:32:29,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535422406] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 14:32:29,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 14:32:29,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 14:32:29,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401447249] [2024-08-27 14:32:29,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 14:32:29,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 14:32:29,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 14:32:29,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 14:32:29,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 14:32:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 14:32:29,749 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 14:32:29,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-08-27 14:32:29,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 14:32:29,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 14:32:29,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-08-27 14:32:29,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err1ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, f2Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 14:32:29,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 14:32:29,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1581465486, now seen corresponding path program 1 times [2024-08-27 14:32:29,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 14:32:29,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238327170] [2024-08-27 14:32:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 14:32:29,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 14:32:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 14:32:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 14:32:29,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 14:32:29,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238327170] [2024-08-27 14:32:29,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238327170] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 14:32:29,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 14:32:29,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-08-27 14:32:29,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814118394] [2024-08-27 14:32:29,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 14:32:29,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-08-27 14:32:29,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 14:32:29,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-08-27 14:32:29,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-08-27 14:32:29,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 14:32:29,986 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 14:32:29,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-08-27 14:32:29,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 14:32:29,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 14:32:30,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 14:32:30,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 14:32:30,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-08-27 14:32:30,080 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [f2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, f2Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 14:32:30,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 14:32:30,081 INFO L85 PathProgramCache]: Analyzing trace with hash -768523434, now seen corresponding path program 1 times [2024-08-27 14:32:30,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 14:32:30,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500720071] [2024-08-27 14:32:30,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 14:32:30,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 14:32:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 14:32:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 14:32:30,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 14:32:30,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500720071] [2024-08-27 14:32:30,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500720071] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 14:32:30,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 14:32:30,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-08-27 14:32:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765435962] [2024-08-27 14:32:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 14:32:30,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 14:32:30,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 14:32:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 14:32:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 14:32:30,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 14:32:30,190 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 14:32:30,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-08-27 14:32:30,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 14:32:30,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 14:32:30,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 14:32:30,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 14:32:30,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 14:32:30,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 14:32:30,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-08-27 14:32:30,239 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [f2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, f2Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 14:32:30,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 14:32:30,239 INFO L85 PathProgramCache]: Analyzing trace with hash -2057166406, now seen corresponding path program 1 times [2024-08-27 14:32:30,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 14:32:30,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835602401] [2024-08-27 14:32:30,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 14:32:30,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 14:32:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-08-27 14:32:30,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-08-27 14:32:30,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-08-27 14:32:30,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835602401] [2024-08-27 14:32:30,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835602401] provided 1 perfect and 0 imperfect interpolant sequences [2024-08-27 14:32:30,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-08-27 14:32:30,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-08-27 14:32:30,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12956068] [2024-08-27 14:32:30,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-08-27 14:32:30,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-08-27 14:32:30,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-08-27 14:32:30,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-08-27 14:32:30,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-08-27 14:32:30,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-08-27 14:32:30,298 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-08-27 14:32:30,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-08-27 14:32:30,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 14:32:30,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-08-27 14:32:30,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-08-27 14:32:30,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-08-27 14:32:30,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 14:32:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-08-27 14:32:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 14:32:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-08-27 14:32:30,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-08-27 14:32:30,351 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err1ASSERT_VIOLATIONERROR_FUNCTION === [f2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, f2Err1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-08-27 14:32:30,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-08-27 14:32:30,351 INFO L85 PathProgramCache]: Analyzing trace with hash -155793328, now seen corresponding path program 1 times [2024-08-27 14:32:30,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-08-27 14:32:30,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348837449] [2024-08-27 14:32:30,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-08-27 14:32:30,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-08-27 14:32:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-27 14:32:30,375 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-08-27 14:32:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-08-27 14:32:30,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-08-27 14:32:30,405 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-08-27 14:32:30,406 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-27 14:32:30,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 2 remaining) [2024-08-27 14:32:30,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-08-27 14:32:30,411 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-08-27 14:32:30,412 INFO L308 ceAbstractionStarter]: Result for error location f2Thread1of1ForFork1 was UNSAFE,UNKNOWN (1/3) [2024-08-27 14:32:30,415 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-08-27 14:32:30,415 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-08-27 14:32:30,441 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-08-27 14:32:30,441 INFO L508 ceAbstractionStarter]: WitnessConsidered=2 [2024-08-27 14:32:30,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 02:32:30 BasicIcfg [2024-08-27 14:32:30,442 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-27 14:32:30,442 INFO L158 Benchmark]: Toolchain (without parser) took 2334.47ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 71.7MB in the beginning and 89.3MB in the end (delta: -17.5MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-08-27 14:32:30,443 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 144.7MB. Free memory was 115.4MB in the beginning and 115.4MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-27 14:32:30,443 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 144.7MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-27 14:32:30,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 556.91ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 71.1MB in the beginning and 123.0MB in the end (delta: -51.9MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2024-08-27 14:32:30,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.97ms. Allocated memory is still 180.4MB. Free memory was 123.0MB in the beginning and 120.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-08-27 14:32:30,443 INFO L158 Benchmark]: Boogie Preprocessor took 40.42ms. Allocated memory is still 180.4MB. Free memory was 120.9MB in the beginning and 117.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-08-27 14:32:30,444 INFO L158 Benchmark]: RCFGBuilder took 430.94ms. Allocated memory is still 180.4MB. Free memory was 117.8MB in the beginning and 87.3MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-08-27 14:32:30,444 INFO L158 Benchmark]: TraceAbstraction took 1243.35ms. Allocated memory is still 180.4MB. Free memory was 86.3MB in the beginning and 89.3MB in the end (delta: -3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-27 14:32:30,448 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 0.09ms. Allocated memory is still 144.7MB. Free memory was 115.4MB in the beginning and 115.4MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 144.7MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 556.91ms. Allocated memory was 144.7MB in the beginning and 180.4MB in the end (delta: 35.7MB). Free memory was 71.1MB in the beginning and 123.0MB in the end (delta: -51.9MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.97ms. Allocated memory is still 180.4MB. Free memory was 123.0MB in the beginning and 120.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.42ms. Allocated memory is still 180.4MB. Free memory was 120.9MB in the beginning and 117.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 430.94ms. Allocated memory is still 180.4MB. Free memory was 117.8MB in the beginning and 87.3MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1243.35ms. Allocated memory is still 180.4MB. Free memory was 86.3MB in the beginning and 89.3MB in the end (delta: -3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 602, independent: 571, independent conditional: 243, independent unconditional: 328, dependent: 31, dependent conditional: 19, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 585, independent: 571, independent conditional: 243, independent unconditional: 328, dependent: 14, dependent conditional: 2, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 585, independent: 571, independent conditional: 243, independent unconditional: 328, dependent: 14, dependent conditional: 2, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 588, independent: 571, independent conditional: 0, independent unconditional: 571, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 588, independent: 571, independent conditional: 0, independent unconditional: 571, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 588, independent: 571, independent conditional: 0, independent unconditional: 571, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 341, independent: 329, independent conditional: 0, independent unconditional: 329, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 341, independent: 321, independent conditional: 0, independent unconditional: 321, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 20, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 20, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 61, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 588, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 341, unknown conditional: 0, unknown unconditional: 341] , Statistics on independence cache: Total cache size (in pairs): 341, Positive cache size: 329, Positive conditional cache size: 0, Positive unconditional cache size: 329, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 2, Independence queries for same thread: 17 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 54, Number of trivial persistent sets: 20, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 340, independent: 328, independent conditional: 0, independent unconditional: 328, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 602, independent: 571, independent conditional: 243, independent unconditional: 328, dependent: 31, dependent conditional: 19, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 585, independent: 571, independent conditional: 243, independent unconditional: 328, dependent: 14, dependent conditional: 2, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 585, independent: 571, independent conditional: 243, independent unconditional: 328, dependent: 14, dependent conditional: 2, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 588, independent: 571, independent conditional: 0, independent unconditional: 571, dependent: 17, dependent conditional: 3, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 588, independent: 571, independent conditional: 0, independent unconditional: 571, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 588, independent: 571, independent conditional: 0, independent unconditional: 571, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 341, independent: 329, independent conditional: 0, independent unconditional: 329, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 341, independent: 321, independent conditional: 0, independent unconditional: 321, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 20, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 20, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 61, independent: 36, independent conditional: 0, independent unconditional: 36, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 588, independent: 242, independent conditional: 0, independent unconditional: 242, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 341, unknown conditional: 0, unknown unconditional: 341] , Statistics on independence cache: Total cache size (in pairs): 341, Positive cache size: 329, Positive conditional cache size: 0, Positive unconditional cache size: 329, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 2, Independence queries for same thread: 17 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, \old(argv)={1151:1152}, \old(ptr)={0:0}, argc=1150, g=0, mut={3:0}, t1=-2] [L1356] 1 //@ assert ((g == 0) || (g == 1)); VAL [\old(ptr)={0:0}, g=0, mut={3:0}, ptr={0:0}] [L1356] 1 g = 1 VAL [\old(ptr)={0:0}, g=1, mut={3:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, \old(argv)={1151:1152}, \old(ptr)={0:0}, argc=1150, g=1, mut={3:0}, ptr={0:0}, t1=-2, t2=-1] [L1365] 2 //@ assert ((g == 0) || (g == 1)); VAL [\old(ptr)={0:0}, \old(ptr)={0:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) VAL [\old(cond)=0, \old(ptr)={0:0}, cond=0, g=1, mut={3:0}, ptr={0:0}] [L19] 2 reach_error() VAL [\old(cond)=0, \old(ptr)={0:0}, cond=0, g=1, mut={3:0}, ptr={0:0}] - UnprovableResult [Line: 1365]: 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 for errors in thread instance: f2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 61 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 0.4s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2024-08-27 14:32:30,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-08-27 14:32:30,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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