./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2cc22fce 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/weaver/mult-dist.wvr.c -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 c31f1603fd15e011308b2e8fcd1cd45b23f0b00ac0b8b466c4f212460081639c --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-2cc22fc-m [2024-07-22 10:44:11,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-22 10:44:12,040 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-22 10:44:12,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-22 10:44:12,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-22 10:44:12,067 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-22 10:44:12,068 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-22 10:44:12,068 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-22 10:44:12,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-22 10:44:12,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-22 10:44:12,072 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-22 10:44:12,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-22 10:44:12,073 INFO L153 SettingsManager]: * Use SBE=true [2024-07-22 10:44:12,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-22 10:44:12,074 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-22 10:44:12,074 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-22 10:44:12,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-22 10:44:12,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-22 10:44:12,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-22 10:44:12,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-22 10:44:12,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-22 10:44:12,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-22 10:44:12,076 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-22 10:44:12,076 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-22 10:44:12,076 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-22 10:44:12,077 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-22 10:44:12,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-22 10:44:12,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-22 10:44:12,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-22 10:44:12,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-22 10:44:12,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 10:44:12,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-22 10:44:12,079 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-22 10:44:12,079 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-22 10:44:12,079 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-22 10:44:12,079 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-22 10:44:12,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-22 10:44:12,080 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-22 10:44:12,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-22 10:44:12,080 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-22 10:44:12,080 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-22 10:44:12,080 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-22 10:44:12,081 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c31f1603fd15e011308b2e8fcd1cd45b23f0b00ac0b8b466c4f212460081639c [2024-07-22 10:44:12,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-22 10:44:12,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-22 10:44:12,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-22 10:44:12,311 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-22 10:44:12,311 INFO L274 PluginConnector]: CDTParser initialized [2024-07-22 10:44:12,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c [2024-07-22 10:44:13,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-22 10:44:13,552 INFO L384 CDTParser]: Found 1 translation units. [2024-07-22 10:44:13,553 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c [2024-07-22 10:44:13,562 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6dd6066f4/50c2e7da0ade4137a8d9d0082f508750/FLAG1bc1db804 [2024-07-22 10:44:13,575 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6dd6066f4/50c2e7da0ade4137a8d9d0082f508750 [2024-07-22 10:44:13,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-22 10:44:13,578 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-22 10:44:13,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-22 10:44:13,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-22 10:44:13,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-22 10:44:13,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be9d9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13, skipping insertion in model container [2024-07-22 10:44:13,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,602 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-22 10:44:13,720 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c[2155,2168] [2024-07-22 10:44:13,723 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 10:44:13,729 INFO L202 MainTranslator]: Completed pre-run [2024-07-22 10:44:13,742 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c[2155,2168] [2024-07-22 10:44:13,742 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-22 10:44:13,754 INFO L206 MainTranslator]: Completed translation [2024-07-22 10:44:13,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13 WrapperNode [2024-07-22 10:44:13,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-22 10:44:13,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-22 10:44:13,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-22 10:44:13,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-22 10:44:13,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,777 INFO L138 Inliner]: procedures = 21, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-07-22 10:44:13,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-22 10:44:13,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-22 10:44:13,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-22 10:44:13,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-22 10:44:13,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,800 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,816 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-22 10:44:13,817 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-22 10:44:13,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-22 10:44:13,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-22 10:44:13,818 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (1/1) ... [2024-07-22 10:44:13,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-22 10:44:13,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 10:44:13,842 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) [2024-07-22 10:44:13,848 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 [2024-07-22 10:44:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-22 10:44:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-07-22 10:44:13,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-07-22 10:44:13,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-07-22 10:44:13,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-07-22 10:44:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-07-22 10:44:13,883 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-07-22 10:44:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-22 10:44:13,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-22 10:44:13,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-22 10:44:13,884 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-22 10:44:13,950 INFO L244 CfgBuilder]: Building ICFG [2024-07-22 10:44:13,952 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-22 10:44:14,098 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-22 10:44:14,098 INFO L293 CfgBuilder]: Performing block encoding [2024-07-22 10:44:14,223 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-22 10:44:14,223 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-07-22 10:44:14,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:44:14 BoogieIcfgContainer [2024-07-22 10:44:14,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-22 10:44:14,225 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-22 10:44:14,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-22 10:44:14,232 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-22 10:44:14,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:44:13" (1/3) ... [2024-07-22 10:44:14,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b6bbe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:44:14, skipping insertion in model container [2024-07-22 10:44:14,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:44:13" (2/3) ... [2024-07-22 10:44:14,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b6bbe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:44:14, skipping insertion in model container [2024-07-22 10:44:14,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:44:14" (3/3) ... [2024-07-22 10:44:14,234 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2024-07-22 10:44:14,240 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-07-22 10:44:14,248 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-22 10:44:14,248 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-07-22 10:44:14,248 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-22 10:44:14,307 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-07-22 10:44:14,339 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-22 10:44:14,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-22 10:44:14,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 10:44:14,341 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) [2024-07-22 10:44:14,347 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 [2024-07-22 10:44:14,388 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-22 10:44:14,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-22 10:44:14,403 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;@5f317f02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-22 10:44:14,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-07-22 10:44:14,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-22 10:44:14,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 10:44:14,499 INFO L85 PathProgramCache]: Analyzing trace with hash 465831969, now seen corresponding path program 1 times [2024-07-22 10:44:14,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 10:44:14,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007196014] [2024-07-22 10:44:14,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 10:44:14,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 10:44:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 10:44:15,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 10:44:15,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 10:44:15,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007196014] [2024-07-22 10:44:15,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007196014] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-22 10:44:15,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835696196] [2024-07-22 10:44:15,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 10:44:15,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 10:44:15,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 10:44:15,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-22 10:44:15,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-07-22 10:44:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 10:44:15,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 19 conjunts are in the unsatisfiable core [2024-07-22 10:44:15,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-22 10:44:15,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 10:44:15,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-22 10:44:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 10:44:16,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835696196] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-22 10:44:16,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-22 10:44:16,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-07-22 10:44:16,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106757921] [2024-07-22 10:44:16,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-22 10:44:16,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-07-22 10:44:16,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 10:44:16,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-07-22 10:44:16,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2024-07-22 10:44:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 10:44:16,242 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 10:44:16,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.8181818181818181) internal successors, (40), 22 states have internal predecessors, (40), 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) [2024-07-22 10:44:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 10:44:18,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-07-22 10:44:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-07-22 10:44:18,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-07-22 10:44:19,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-07-22 10:44:19,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-22 10:44:19,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 10:44:19,089 INFO L85 PathProgramCache]: Analyzing trace with hash 571738369, now seen corresponding path program 1 times [2024-07-22 10:44:19,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 10:44:19,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323888224] [2024-07-22 10:44:19,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 10:44:19,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 10:44:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 10:44:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 10:44:19,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 10:44:19,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323888224] [2024-07-22 10:44:19,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323888224] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-22 10:44:19,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881196626] [2024-07-22 10:44:19,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 10:44:19,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 10:44:19,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 10:44:19,887 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-22 10:44:19,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-07-22 10:44:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 10:44:20,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 31 conjunts are in the unsatisfiable core [2024-07-22 10:44:20,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-22 10:44:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 10:44:24,481 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-22 10:44:31,663 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 10:44:31,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881196626] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-22 10:44:31,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-22 10:44:31,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 37 [2024-07-22 10:44:31,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771966735] [2024-07-22 10:44:31,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-22 10:44:31,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-07-22 10:44:31,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 10:44:31,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-07-22 10:44:31,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1102, Unknown=2, NotChecked=0, Total=1332 [2024-07-22 10:44:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 10:44:31,667 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 10:44:31,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.4864864864864864) internal successors, (55), 37 states have internal predecessors, (55), 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) [2024-07-22 10:44:31,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-07-22 10:44:31,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 10:45:02,965 WARN L293 SmtUtils]: Spent 25.43s on a formula simplification. DAG size of input: 121 DAG size of output: 79 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-22 10:46:49,541 WARN L293 SmtUtils]: Spent 1.69m on a formula simplification. DAG size of input: 120 DAG size of output: 119 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-22 10:48:21,851 WARN L293 SmtUtils]: Spent 1.28m on a formula simplification. DAG size of input: 104 DAG size of output: 103 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-22 10:48:33,557 WARN L293 SmtUtils]: Spent 7.83s on a formula simplification. DAG size of input: 131 DAG size of output: 132 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-22 10:48:58,570 WARN L293 SmtUtils]: Spent 21.92s on a formula simplification. DAG size of input: 142 DAG size of output: 137 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-22 10:49:11,317 WARN L293 SmtUtils]: Spent 6.28s on a formula simplification that was a NOOP. DAG size: 68 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-22 10:49:28,423 WARN L293 SmtUtils]: Spent 7.62s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-22 10:49:31,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-07-22 10:49:35,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-07-22 10:49:40,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-07-22 10:49:41,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-07-22 10:49:41,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-07-22 10:49:41,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-07-22 10:49:41,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 10:49:41,422 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-07-22 10:49:41,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-22 10:49:41,422 INFO L85 PathProgramCache]: Analyzing trace with hash 919442113, now seen corresponding path program 2 times [2024-07-22 10:49:41,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-22 10:49:41,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115762403] [2024-07-22 10:49:41,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-22 10:49:41,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-22 10:49:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-22 10:49:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 10:49:43,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-22 10:49:43,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115762403] [2024-07-22 10:49:43,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115762403] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-22 10:49:43,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524137063] [2024-07-22 10:49:43,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-07-22 10:49:43,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-22 10:49:43,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-22 10:49:43,021 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-22 10:49:43,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-07-22 10:49:43,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-07-22 10:49:43,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-22 10:49:43,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 55 conjunts are in the unsatisfiable core [2024-07-22 10:49:43,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-22 10:49:46,364 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 10:49:46,364 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-22 10:51:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 82 refuted. 3 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-22 10:51:00,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524137063] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-22 10:51:00,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-22 10:51:00,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 67 [2024-07-22 10:51:00,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085441995] [2024-07-22 10:51:00,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-22 10:51:00,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-07-22 10:51:00,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-22 10:51:00,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-07-22 10:51:00,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=832, Invalid=3569, Unknown=21, NotChecked=0, Total=4422 [2024-07-22 10:51:00,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-22 10:51:00,004 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-22 10:51:00,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 1.2686567164179106) internal successors, (85), 67 states have internal predecessors, (85), 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) [2024-07-22 10:51:00,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2024-07-22 10:51:00,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2024-07-22 10:51:00,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-22 10:51:26,903 WARN L293 SmtUtils]: Spent 24.01s on a formula simplification. DAG size of input: 118 DAG size of output: 91 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-22 10:51:29,059 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse8 (mod c_thread2Thread1of1ForFork0_~i~1 4294967296))) (let ((.cse38 (mod (+ c_thread1Thread1of1ForFork2_~i~0 3) 4294967296)) (.cse23 (mod (+ c_thread1Thread1of1ForFork2_~i~0 2) 4294967296)) (.cse28 (mod (+ c_thread2Thread1of1ForFork0_~i~1 2) 4294967296)) (.cse12 (mod (+ c_thread1Thread1of1ForFork2_~i~0 1) 4294967296)) (.cse24 (mod c_~a~0 4294967296)) (.cse5 (mod (+ c_thread2Thread1of1ForFork0_~i~1 4) 4294967296)) (.cse29 (mod (+ 5 c_thread1Thread1of1ForFork2_~i~0) 4294967296)) (.cse21 (mod (+ c_thread1Thread1of1ForFork2_~i~0 6) 4294967296)) (.cse22 (mod (+ c_thread2Thread1of1ForFork0_~i~1 5) 4294967296)) (.cse15 (mod c_thread3Thread1of1ForFork1_~i~2 4294967296)) (.cse6 (+ .cse8 1)) (.cse34 (mod (+ c_thread2Thread1of1ForFork0_~i~1 1) 4294967296)) (.cse13 (mod c_~b~0 4294967296)) (.cse18 (mod (+ c_thread2Thread1of1ForFork0_~i~1 6) 4294967296))) (let ((.cse16 (+ (mod (+ 7 c_thread1Thread1of1ForFork2_~i~0) 4294967296) .cse18)) (.cse20 (mod (+ 6 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse9 (< .cse34 .cse13)) (.cse10 (< .cse13 .cse6)) (.cse25 (< .cse15 (mod (+ c_~b~0 c_~a~0) 4294967296))) (.cse27 (+ .cse21 .cse22)) (.cse2 (mod (+ c_thread3Thread1of1ForFork1_~i~2 4) 4294967296)) (.cse0 (+ .cse5 .cse29)) (.cse17 (mod (+ 5 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse31 (< .cse12 .cse24)) (.cse32 (< .cse24 (+ (mod c_thread1Thread1of1ForFork2_~i~0 4294967296) 1))) (.cse1 (mod (+ 3 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse4 (mod (+ c_thread1Thread1of1ForFork2_~i~0 4) 4294967296)) (.cse19 (+ .cse28 1)) (.cse3 (mod (+ c_thread2Thread1of1ForFork0_~i~1 3) 4294967296)) (.cse14 (+ .cse23 .cse13)) (.cse37 (mod (+ 2 c_thread3Thread1of1ForFork1_~i~2) 4294967296)) (.cse35 (+ .cse13 .cse38)) (.cse11 (mod (+ c_thread3Thread1of1ForFork1_~i~2 1) 4294967296)) (.cse30 (+ .cse34 1))) (and (or (< .cse0 (+ .cse1 1)) (< .cse2 (+ 2 .cse3 .cse4)) (< .cse5 .cse6)) (let ((.cse7 (+ .cse2 4294967294))) (or (< .cse7 (+ .cse3 .cse4)) (< .cse7 (+ .cse8 .cse4)) (< .cse0 (+ .cse1 4294967297)))) (or .cse9 .cse10 (and (or (< (+ 4294967295 .cse11) (+ .cse12 .cse13)) (< .cse14 (+ 4294967297 .cse15))) (or (< .cse14 (+ .cse15 1)) (< .cse11 (+ .cse12 .cse13 1))))) (or (< .cse16 (+ .cse17 1)) (< .cse18 .cse19) (< .cse20 (+ .cse21 2 .cse22))) (or (< .cse23 .cse24) .cse9 (< .cse24 (+ .cse12 1)) .cse10 .cse25) (let ((.cse26 (+ 4294967294 .cse20))) (or (< .cse16 (+ .cse17 4294967297)) (< .cse26 .cse27) (< .cse26 (+ .cse21 .cse28)))) (or (< .cse17 (+ .cse5 2 .cse29)) (< .cse22 .cse30) (< .cse27 (+ .cse2 1))) (or .cse9 .cse31 .cse10 .cse32 .cse25) (let ((.cse33 (+ .cse17 4294967294))) (or (< .cse33 (+ .cse29 .cse34)) (< .cse27 (+ .cse2 4294967297)) (< .cse33 .cse0))) (or .cse31 .cse32 (< .cse8 .cse13)) (or (let ((.cse36 (+ .cse4 .cse13))) (and (or (< (+ .cse1 4294967295) .cse35) (< .cse36 (+ .cse37 4294967297))) (or (< .cse1 (+ .cse13 1 .cse38)) (< .cse36 (+ .cse37 1))))) (< .cse13 .cse19) (< .cse3 .cse13)) (or (and (or (< (+ .cse37 4294967295) .cse14) (< .cse35 (+ 4294967297 .cse11))) (or (< .cse37 (+ .cse23 .cse13 1)) (< .cse35 (+ .cse11 1)))) (< .cse13 .cse30) (< .cse28 .cse13)))))) is different from false Killed by 15