./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2520d7ca 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/GemCutterReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-2520d7c-m [2024-07-17 08:48:14,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-17 08:48:14,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-17 08:48:14,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-17 08:48:14,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-17 08:48:14,789 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-17 08:48:14,790 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-17 08:48:14,790 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-17 08:48:14,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-17 08:48:14,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-17 08:48:14,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-17 08:48:14,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-17 08:48:14,796 INFO L153 SettingsManager]: * Use SBE=true [2024-07-17 08:48:14,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-17 08:48:14,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-17 08:48:14,798 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-17 08:48:14,798 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-17 08:48:14,798 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-17 08:48:14,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-17 08:48:14,799 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-17 08:48:14,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-17 08:48:14,800 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-17 08:48:14,800 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-17 08:48:14,800 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-17 08:48:14,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-17 08:48:14,801 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-17 08:48:14,801 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-17 08:48:14,801 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-17 08:48:14,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-17 08:48:14,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-17 08:48:14,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 08:48:14,803 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-17 08:48:14,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-17 08:48:14,804 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-17 08:48:14,804 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-17 08:48:14,804 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-17 08:48:14,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-17 08:48:14,804 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-17 08:48:14,805 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-17 08:48:14,805 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-17 08:48:14,805 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-17 08:48:14,805 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-17 08:48:14,806 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a65477eb93c2031bed3e6d454d38e75e9833f23496d456d5084dd6ae5f38687 [2024-07-17 08:48:15,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-17 08:48:15,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-17 08:48:15,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-17 08:48:15,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-17 08:48:15,113 INFO L274 PluginConnector]: CDTParser initialized [2024-07-17 08:48:15,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-07-17 08:48:16,227 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-17 08:48:16,480 INFO L384 CDTParser]: Found 1 translation units. [2024-07-17 08:48:16,486 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_69-refine-protected-loop-interval_true.i [2024-07-17 08:48:16,498 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0c98ff08e/43d1fa1403524d0e81789df62562db3a/FLAG9f5a295e5 [2024-07-17 08:48:16,510 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0c98ff08e/43d1fa1403524d0e81789df62562db3a [2024-07-17 08:48:16,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-17 08:48:16,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-17 08:48:16,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-17 08:48:16,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-17 08:48:16,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-17 08:48:16,521 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 08:48:16" (1/1) ... [2024-07-17 08:48:16,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d0e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:16, skipping insertion in model container [2024-07-17 08:48:16,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 08:48:16" (1/1) ... [2024-07-17 08:48:16,560 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-17 08:48:16,714 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_69-refine-protected-loop-interval_true.i[1107,1120] [2024-07-17 08:48:16,883 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 08:48:16,901 INFO L202 MainTranslator]: Completed pre-run [2024-07-17 08:48:16,914 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_69-refine-protected-loop-interval_true.i[1107,1120] [2024-07-17 08:48:16,944 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 08:48:17,001 INFO L206 MainTranslator]: Completed translation [2024-07-17 08:48:17,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17 WrapperNode [2024-07-17 08:48:17,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-17 08:48:17,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-17 08:48:17,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-17 08:48:17,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-17 08:48:17,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (1/1) ... [2024-07-17 08:48:17,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (1/1) ... [2024-07-17 08:48:17,055 INFO L138 Inliner]: procedures = 165, calls = 23, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 99 [2024-07-17 08:48:17,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-17 08:48:17,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-17 08:48:17,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-17 08:48:17,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-17 08:48:17,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (1/1) ... [2024-07-17 08:48:17,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (1/1) ... [2024-07-17 08:48:17,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (1/1) ... [2024-07-17 08:48:17,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (1/1) ... [2024-07-17 08:48:17,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (1/1) ... [2024-07-17 08:48:17,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (1/1) ... [2024-07-17 08:48:17,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (1/1) ... [2024-07-17 08:48:17,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (1/1) ... [2024-07-17 08:48:17,117 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-17 08:48:17,118 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-17 08:48:17,118 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-17 08:48:17,118 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-17 08:48:17,119 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (1/1) ... [2024-07-17 08:48:17,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 08:48:17,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:48:17,168 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) [2024-07-17 08:48:17,195 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 [2024-07-17 08:48:17,227 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-07-17 08:48:17,228 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-07-17 08:48:17,228 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-07-17 08:48:17,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-17 08:48:17,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-17 08:48:17,229 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-07-17 08:48:17,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-17 08:48:17,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-17 08:48:17,231 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-17 08:48:17,394 INFO L244 CfgBuilder]: Building ICFG [2024-07-17 08:48:17,397 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-17 08:48:17,625 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-17 08:48:17,627 INFO L293 CfgBuilder]: Performing block encoding [2024-07-17 08:48:17,834 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-17 08:48:17,835 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-07-17 08:48:17,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 08:48:17 BoogieIcfgContainer [2024-07-17 08:48:17,836 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-17 08:48:17,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-17 08:48:17,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-17 08:48:17,841 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-17 08:48:17,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 08:48:16" (1/3) ... [2024-07-17 08:48:17,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc59077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 08:48:17, skipping insertion in model container [2024-07-17 08:48:17,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:48:17" (2/3) ... [2024-07-17 08:48:17,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc59077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 08:48:17, skipping insertion in model container [2024-07-17 08:48:17,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 08:48:17" (3/3) ... [2024-07-17 08:48:17,846 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_69-refine-protected-loop-interval_true.i [2024-07-17 08:48:17,854 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-07-17 08:48:17,864 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-17 08:48:17,864 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-07-17 08:48:17,864 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-17 08:48:17,906 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-07-17 08:48:17,950 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 08:48:17,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-17 08:48:17,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:48:17,953 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) [2024-07-17 08:48:17,970 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 [2024-07-17 08:48:17,993 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-17 08:48:18,006 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == workerThread1of1ForFork0 ======== [2024-07-17 08:48:18,012 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=true, 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;@757d92e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 08:48:18,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-07-17 08:48:18,149 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-17 08:48:18,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:48:18,153 INFO L85 PathProgramCache]: Analyzing trace with hash -468322130, now seen corresponding path program 1 times [2024-07-17 08:48:18,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:48:18,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38471459] [2024-07-17 08:48:18,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:48:18,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:48:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:48:18,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:48:18,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:48:18,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38471459] [2024-07-17 08:48:18,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38471459] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 08:48:18,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 08:48:18,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-07-17 08:48:18,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954230385] [2024-07-17 08:48:18,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 08:48:18,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-07-17 08:48:18,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:48:18,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-07-17 08:48:18,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-07-17 08:48:18,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:18,635 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:48:18,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) 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) [2024-07-17 08:48:18,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:18,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:18,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-17 08:48:18,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-17 08:48:18,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:48:18,700 INFO L85 PathProgramCache]: Analyzing trace with hash -468321104, now seen corresponding path program 1 times [2024-07-17 08:48:18,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:48:18,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754703190] [2024-07-17 08:48:18,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:48:18,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:48:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:48:18,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:48:18,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:48:18,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754703190] [2024-07-17 08:48:18,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754703190] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 08:48:18,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 08:48:18,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-07-17 08:48:18,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221830300] [2024-07-17 08:48:18,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 08:48:18,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-17 08:48:18,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:48:18,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-17 08:48:18,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-17 08:48:18,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:18,841 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:48:18,841 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) [2024-07-17 08:48:18,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:18,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:18,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:18,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:18,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-07-17 08:48:18,938 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-17 08:48:18,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:48:18,938 INFO L85 PathProgramCache]: Analyzing trace with hash -791588371, now seen corresponding path program 1 times [2024-07-17 08:48:18,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:48:18,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574920107] [2024-07-17 08:48:18,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:48:18,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:48:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:48:19,111 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-07-17 08:48:19,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:48:19,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574920107] [2024-07-17 08:48:19,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574920107] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 08:48:19,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 08:48:19,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-07-17 08:48:19,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700930530] [2024-07-17 08:48:19,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 08:48:19,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-17 08:48:19,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:48:19,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-17 08:48:19,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-17 08:48:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:19,115 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:48:19,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-07-17 08:48:19,115 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:19,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,116 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:19,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:19,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-07-17 08:48:19,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-17 08:48:19,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:48:19,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1341904650, now seen corresponding path program 1 times [2024-07-17 08:48:19,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:48:19,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644284897] [2024-07-17 08:48:19,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:48:19,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:48:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:48:19,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:48:19,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:48:19,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644284897] [2024-07-17 08:48:19,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644284897] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 08:48:19,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 08:48:19,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-07-17 08:48:19,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343918369] [2024-07-17 08:48:19,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 08:48:19,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-07-17 08:48:19,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:48:19,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-07-17 08:48:19,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-07-17 08:48:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:19,249 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:48:19,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-07-17 08:48:19,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:19,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,251 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:19,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 08:48:19,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-07-17 08:48:19,390 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-17 08:48:19,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:48:19,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1354614389, now seen corresponding path program 2 times [2024-07-17 08:48:19,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:48:19,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74338834] [2024-07-17 08:48:19,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:48:19,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:48:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:48:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:48:19,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:48:19,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74338834] [2024-07-17 08:48:19,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74338834] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 08:48:19,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 08:48:19,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-07-17 08:48:19,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066335049] [2024-07-17 08:48:19,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 08:48:19,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-07-17 08:48:19,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:48:19,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-07-17 08:48:19,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-07-17 08:48:19,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:19,534 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:48:19,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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) [2024-07-17 08:48:19,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:19,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 08:48:19,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:19,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:19,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 08:48:19,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:19,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-07-17 08:48:19,585 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONERROR_FUNCTION === [workerErr0ASSERT_VIOLATIONERROR_FUNCTION, workerErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-07-17 08:48:19,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:48:19,585 INFO L85 PathProgramCache]: Analyzing trace with hash 164998403, now seen corresponding path program 1 times [2024-07-17 08:48:19,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:48:19,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169345146] [2024-07-17 08:48:19,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:48:19,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:48:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:48:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-07-17 08:48:19,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:48:19,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169345146] [2024-07-17 08:48:19,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169345146] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 08:48:19,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 08:48:19,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-07-17 08:48:19,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693412462] [2024-07-17 08:48:19,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 08:48:19,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-07-17 08:48:19,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:48:19,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-07-17 08:48:19,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-07-17 08:48:19,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:19,728 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:48:19,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2024-07-17 08:48:19,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:19,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-17 08:48:19,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:19,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:48:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:48:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-17 08:48:19,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-07-17 08:48:19,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:48:19,840 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-07-17 08:48:19,841 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-07-17 08:48:19,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-07-17 08:48:19,852 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-07-17 08:48:19,854 INFO L308 ceAbstractionStarter]: Result for error location workerThread1of1ForFork0 was SAFE,SAFE (1/2) [2024-07-17 08:48:19,858 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 08:48:19,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-17 08:48:19,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:48:19,885 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-07-17 08:48:19,889 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-17 08:48:19,889 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-17 08:48:19,889 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=true, 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;@757d92e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 08:48:19,889 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-07-17 08:48:19,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2024-07-17 08:48:19,891 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-07-17 08:48:19,892 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (2/2) [2024-07-17 08:48:19,892 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-07-17 08:48:19,892 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-07-17 08:48:19,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 08:48:19 BasicIcfg [2024-07-17 08:48:19,895 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-07-17 08:48:19,896 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-07-17 08:48:19,896 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-07-17 08:48:19,896 INFO L274 PluginConnector]: Witness Printer initialized [2024-07-17 08:48:19,897 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 08:48:17" (3/4) ... [2024-07-17 08:48:19,898 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-07-17 08:48:19,902 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2024-07-17 08:48:19,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2024-07-17 08:48:19,911 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2024-07-17 08:48:19,912 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-07-17 08:48:19,912 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-07-17 08:48:19,912 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-07-17 08:48:19,990 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-07-17 08:48:19,993 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-07-17 08:48:19,993 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-07-17 08:48:19,994 INFO L158 Benchmark]: Toolchain (without parser) took 3480.67ms. Allocated memory was 163.6MB in the beginning and 207.6MB in the end (delta: 44.0MB). Free memory was 129.9MB in the beginning and 170.6MB in the end (delta: -40.6MB). Peak memory consumption was 106.4MB. Max. memory is 16.1GB. [2024-07-17 08:48:19,994 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-07-17 08:48:19,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.89ms. Allocated memory is still 163.6MB. Free memory was 129.9MB in the beginning and 108.4MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-07-17 08:48:19,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.30ms. Allocated memory is still 163.6MB. Free memory was 108.4MB in the beginning and 106.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-17 08:48:19,995 INFO L158 Benchmark]: Boogie Preprocessor took 60.47ms. Allocated memory is still 163.6MB. Free memory was 106.3MB in the beginning and 105.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-07-17 08:48:19,995 INFO L158 Benchmark]: RCFGBuilder took 717.51ms. Allocated memory is still 163.6MB. Free memory was 104.8MB in the beginning and 127.7MB in the end (delta: -22.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-07-17 08:48:19,995 INFO L158 Benchmark]: TraceAbstraction took 2058.04ms. Allocated memory was 163.6MB in the beginning and 207.6MB in the end (delta: 44.0MB). Free memory was 126.7MB in the beginning and 69.8MB in the end (delta: 56.9MB). Peak memory consumption was 102.1MB. Max. memory is 16.1GB. [2024-07-17 08:48:19,996 INFO L158 Benchmark]: Witness Printer took 97.26ms. Allocated memory is still 207.6MB. Free memory was 69.8MB in the beginning and 170.6MB in the end (delta: -100.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-07-17 08:48:19,997 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.89ms. Allocated memory is still 163.6MB. Free memory was 129.9MB in the beginning and 108.4MB in the end (delta: 21.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.30ms. Allocated memory is still 163.6MB. Free memory was 108.4MB in the beginning and 106.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.47ms. Allocated memory is still 163.6MB. Free memory was 106.3MB in the beginning and 105.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 717.51ms. Allocated memory is still 163.6MB. Free memory was 104.8MB in the beginning and 127.7MB in the end (delta: -22.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2058.04ms. Allocated memory was 163.6MB in the beginning and 207.6MB in the end (delta: 44.0MB). Free memory was 126.7MB in the beginning and 69.8MB in the end (delta: 56.9MB). Peak memory consumption was 102.1MB. Max. memory is 16.1GB. * Witness Printer took 97.26ms. Allocated memory is still 207.6MB. Free memory was 69.8MB in the beginning and 170.6MB in the end (delta: -100.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1051, independent: 856, independent conditional: 444, independent unconditional: 412, dependent: 195, dependent conditional: 188, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 873, independent: 856, independent conditional: 444, independent unconditional: 412, dependent: 17, dependent conditional: 10, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 873, independent: 856, independent conditional: 444, independent unconditional: 412, dependent: 17, dependent conditional: 10, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 893, independent: 856, independent conditional: 0, independent unconditional: 856, dependent: 37, dependent conditional: 20, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 893, independent: 856, independent conditional: 0, independent unconditional: 856, dependent: 37, dependent conditional: 8, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 893, independent: 856, independent conditional: 0, independent unconditional: 856, dependent: 37, dependent conditional: 8, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 273, independent: 263, independent conditional: 0, independent unconditional: 263, dependent: 10, dependent conditional: 3, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 273, independent: 258, independent conditional: 0, independent unconditional: 258, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 10, dependent conditional: 3, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 10, dependent conditional: 3, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 45, dependent conditional: 12, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 893, independent: 593, independent conditional: 0, independent unconditional: 593, dependent: 27, dependent conditional: 5, dependent unconditional: 22, unknown: 273, unknown conditional: 3, unknown unconditional: 270] , Statistics on independence cache: Total cache size (in pairs): 273, Positive cache size: 263, Positive conditional cache size: 0, Positive unconditional cache size: 263, Negative cache size: 10, Negative conditional cache size: 3, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 12, Maximal queried relation: 4, Independence queries for same thread: 178 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 94, Number of trivial persistent sets: 83, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 419, independent: 412, independent conditional: 0, independent unconditional: 412, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1051, independent: 856, independent conditional: 444, independent unconditional: 412, dependent: 195, dependent conditional: 188, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 873, independent: 856, independent conditional: 444, independent unconditional: 412, dependent: 17, dependent conditional: 10, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 873, independent: 856, independent conditional: 444, independent unconditional: 412, dependent: 17, dependent conditional: 10, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 893, independent: 856, independent conditional: 0, independent unconditional: 856, dependent: 37, dependent conditional: 20, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 893, independent: 856, independent conditional: 0, independent unconditional: 856, dependent: 37, dependent conditional: 8, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 893, independent: 856, independent conditional: 0, independent unconditional: 856, dependent: 37, dependent conditional: 8, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 273, independent: 263, independent conditional: 0, independent unconditional: 263, dependent: 10, dependent conditional: 3, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 273, independent: 258, independent conditional: 0, independent unconditional: 258, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 15, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 10, dependent conditional: 3, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 10, dependent conditional: 3, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 92, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 45, dependent conditional: 12, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 893, independent: 593, independent conditional: 0, independent unconditional: 593, dependent: 27, dependent conditional: 5, dependent unconditional: 22, unknown: 273, unknown conditional: 3, unknown unconditional: 270] , Statistics on independence cache: Total cache size (in pairs): 273, Positive cache size: 263, Positive conditional cache size: 0, Positive unconditional cache size: 263, Negative cache size: 10, Negative conditional cache size: 3, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 12, Maximal queried relation: 4, Independence queries for same thread: 178 - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.0s, Number of persistent set computation: 2, Number of trivial persistent sets: 2, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: workerThread1of1ForFork0 with 1 thread instances CFG has 3 procedures, 50 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.6s, 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: 25, 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, 0.8s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 157 ConstructedInterpolants, 0 QuantifiedInterpolants, 290 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 90/90 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 50 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, 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: 0, 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-07-17 08:48:20,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2024-07-17 08:48:20,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-07-17 08:48:20,443 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 Result: TRUE