./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/unroll-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dfe144c0 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/unroll-3.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 a4cca88acec68e5dbb90cd5700ef248bb5273dc097847f9475a683bfbdc7b189 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-dfe144c-m [2024-07-20 20:01:04,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-20 20:01:04,390 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-20 20:01:04,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-20 20:01:04,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-20 20:01:04,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-20 20:01:04,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-20 20:01:04,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-20 20:01:04,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-20 20:01:04,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-20 20:01:04,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-20 20:01:04,429 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-20 20:01:04,430 INFO L153 SettingsManager]: * Use SBE=true [2024-07-20 20:01:04,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-20 20:01:04,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-20 20:01:04,433 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-20 20:01:04,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-20 20:01:04,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-20 20:01:04,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-20 20:01:04,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-20 20:01:04,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-20 20:01:04,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-20 20:01:04,436 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-20 20:01:04,436 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-20 20:01:04,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-20 20:01:04,437 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-20 20:01:04,438 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-20 20:01:04,438 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-20 20:01:04,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-20 20:01:04,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-20 20:01:04,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-20 20:01:04,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-20 20:01:04,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-20 20:01:04,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-20 20:01:04,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-20 20:01:04,440 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-20 20:01:04,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-20 20:01:04,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-20 20:01:04,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-20 20:01:04,441 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-20 20:01:04,442 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-20 20:01:04,442 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-20 20:01:04,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4cca88acec68e5dbb90cd5700ef248bb5273dc097847f9475a683bfbdc7b189 [2024-07-20 20:01:04,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-20 20:01:04,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-20 20:01:04,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-20 20:01:04,742 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-20 20:01:04,742 INFO L274 PluginConnector]: CDTParser initialized [2024-07-20 20:01:04,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/unroll-3.wvr.c [2024-07-20 20:01:05,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-20 20:01:06,132 INFO L384 CDTParser]: Found 1 translation units. [2024-07-20 20:01:06,133 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-3.wvr.c [2024-07-20 20:01:06,140 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1437485e5/69e4317f76784092bb746bdd3c4f6a33/FLAG160a652a2 [2024-07-20 20:01:06,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/1437485e5/69e4317f76784092bb746bdd3c4f6a33 [2024-07-20 20:01:06,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-20 20:01:06,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-20 20:01:06,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-20 20:01:06,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-20 20:01:06,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-20 20:01:06,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690983b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06, skipping insertion in model container [2024-07-20 20:01:06,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,182 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-20 20:01:06,325 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/unroll-3.wvr.c[2526,2539] [2024-07-20 20:01:06,333 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-20 20:01:06,341 INFO L202 MainTranslator]: Completed pre-run [2024-07-20 20:01:06,359 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/unroll-3.wvr.c[2526,2539] [2024-07-20 20:01:06,363 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-20 20:01:06,379 INFO L206 MainTranslator]: Completed translation [2024-07-20 20:01:06,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06 WrapperNode [2024-07-20 20:01:06,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-20 20:01:06,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-20 20:01:06,381 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-20 20:01:06,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-20 20:01:06,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,439 INFO L138 Inliner]: procedures = 23, calls = 24, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 137 [2024-07-20 20:01:06,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-20 20:01:06,440 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-20 20:01:06,440 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-20 20:01:06,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-20 20:01:06,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,465 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-20 20:01:06,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-20 20:01:06,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-20 20:01:06,479 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-20 20:01:06,480 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (1/1) ... [2024-07-20 20:01:06,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-20 20:01:06,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:01:06,511 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) [2024-07-20 20:01:06,520 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 [2024-07-20 20:01:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-20 20:01:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-07-20 20:01:06,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-07-20 20:01:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-07-20 20:01:06,565 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-07-20 20:01:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-20 20:01:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-07-20 20:01:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-07-20 20:01:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-20 20:01:06,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-20 20:01:06,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-07-20 20:01:06,569 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-20 20:01:06,690 INFO L244 CfgBuilder]: Building ICFG [2024-07-20 20:01:06,692 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-20 20:01:06,931 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-20 20:01:06,933 INFO L293 CfgBuilder]: Performing block encoding [2024-07-20 20:01:07,192 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-20 20:01:07,193 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-07-20 20:01:07,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 08:01:07 BoogieIcfgContainer [2024-07-20 20:01:07,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-20 20:01:07,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-20 20:01:07,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-20 20:01:07,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-20 20:01:07,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 08:01:06" (1/3) ... [2024-07-20 20:01:07,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386cd3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 08:01:07, skipping insertion in model container [2024-07-20 20:01:07,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 08:01:06" (2/3) ... [2024-07-20 20:01:07,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386cd3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 08:01:07, skipping insertion in model container [2024-07-20 20:01:07,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 08:01:07" (3/3) ... [2024-07-20 20:01:07,206 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-3.wvr.c [2024-07-20 20:01:07,214 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-07-20 20:01:07,223 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-20 20:01:07,225 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-07-20 20:01:07,225 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-20 20:01:07,286 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-07-20 20:01:07,340 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-20 20:01:07,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-20 20:01:07,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:01:07,345 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) [2024-07-20 20:01:07,347 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 [2024-07-20 20:01:07,399 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-20 20:01:07,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-20 20:01:07,415 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;@3e93d1f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-20 20:01:07,416 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-07-20 20:01:07,521 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:01:07,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:01:07,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1024579427, now seen corresponding path program 1 times [2024-07-20 20:01:07,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:01:07,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5161208] [2024-07-20 20:01:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:01:07,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:01:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:01:07,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-07-20 20:01:07,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:01:07,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5161208] [2024-07-20 20:01:07,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5161208] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-20 20:01:07,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-20 20:01:07,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-07-20 20:01:07,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935991397] [2024-07-20 20:01:07,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-20 20:01:07,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-20 20:01:07,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:01:07,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-20 20:01:07,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-20 20:01:07,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:01:07,927 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:01:07,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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) [2024-07-20 20:01:07,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:01:07,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:01:07,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-20 20:01:07,990 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:01:07,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:01:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash -2086607638, now seen corresponding path program 1 times [2024-07-20 20:01:07,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:01:07,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207108247] [2024-07-20 20:01:07,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:01:07,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:01:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:01:08,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-07-20 20:01:08,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:01:08,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207108247] [2024-07-20 20:01:08,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207108247] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-20 20:01:08,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-20 20:01:08,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-07-20 20:01:08,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752992230] [2024-07-20 20:01:08,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-20 20:01:08,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-07-20 20:01:08,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:01:08,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-07-20 20:01:08,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-07-20 20:01:08,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:01:08,223 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:01:08,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-07-20 20:01:08,224 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:01:08,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:01:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:01:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-20 20:01:08,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-07-20 20:01:08,316 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:01:08,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:01:08,317 INFO L85 PathProgramCache]: Analyzing trace with hash 2033646631, now seen corresponding path program 1 times [2024-07-20 20:01:08,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:01:08,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155938627] [2024-07-20 20:01:08,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:01:08,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:01:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:01:08,762 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-07-20 20:01:08,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:01:08,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155938627] [2024-07-20 20:01:08,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155938627] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-20 20:01:08,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39300476] [2024-07-20 20:01:08,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:01:08,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:01:08,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:01:08,797 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) [2024-07-20 20:01:08,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-07-20 20:01:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:01:08,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 31 conjunts are in the unsatisfiable core [2024-07-20 20:01:08,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-20 20:01:09,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-07-20 20:01:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-20 20:01:09,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-20 20:01:09,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 188 treesize of output 166 [2024-07-20 20:01:10,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-07-20 20:01:10,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 602 treesize of output 560 [2024-07-20 20:01:53,639 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-07-20 20:02:00,573 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-07-20 20:02:07,363 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-07-20 20:02:08,392 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-07-20 20:02:09,427 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-07-20 20:04:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-20 20:04:01,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39300476] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-20 20:04:01,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-20 20:04:01,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2024-07-20 20:04:01,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320153580] [2024-07-20 20:04:01,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-20 20:04:01,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-07-20 20:04:01,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:04:01,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-07-20 20:04:01,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-07-20 20:04:01,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:04:01,406 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:04:01,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 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) [2024-07-20 20:04:01,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:04:01,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-20 20:04:01,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:04:01,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:04:01,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-20 20:04:01,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-20 20:04:01,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-07-20 20:04:02,103 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,SelfDestructingSolverStorable2 [2024-07-20 20:04:02,103 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:04:02,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:04:02,104 INFO L85 PathProgramCache]: Analyzing trace with hash 330610639, now seen corresponding path program 2 times [2024-07-20 20:04:02,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:04:02,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511715459] [2024-07-20 20:04:02,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:04:02,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:04:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:04:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-07-20 20:04:02,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:04:02,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511715459] [2024-07-20 20:04:02,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511715459] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-20 20:04:02,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047669168] [2024-07-20 20:04:02,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-07-20 20:04:02,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:04:02,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:04:02,449 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) [2024-07-20 20:04:02,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-07-20 20:04:02,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-07-20 20:04:02,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-20 20:04:02,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 14 conjunts are in the unsatisfiable core [2024-07-20 20:04:02,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-20 20:04:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-07-20 20:04:02,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-20 20:04:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-07-20 20:04:02,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047669168] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-20 20:04:02,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-20 20:04:02,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-07-20 20:04:02,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104995969] [2024-07-20 20:04:02,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-20 20:04:02,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-07-20 20:04:02,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:04:02,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-07-20 20:04:02,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-07-20 20:04:02,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:04:02,866 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:04:02,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.95) internal successors, (39), 20 states have internal predecessors, (39), 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) [2024-07-20 20:04:02,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:04:02,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-20 20:04:02,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-20 20:04:02,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:04:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:04:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-20 20:04:03,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-20 20:04:03,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-07-20 20:04:03,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-07-20 20:04:03,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:04:03,744 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:04:03,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:04:03,744 INFO L85 PathProgramCache]: Analyzing trace with hash 660309240, now seen corresponding path program 3 times [2024-07-20 20:04:03,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:04:03,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556895969] [2024-07-20 20:04:03,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:04:03,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:04:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:04:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-07-20 20:04:04,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:04:04,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556895969] [2024-07-20 20:04:04,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556895969] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-20 20:04:04,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363187100] [2024-07-20 20:04:04,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-07-20 20:04:04,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:04:04,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:04:04,154 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) [2024-07-20 20:04:04,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-07-20 20:04:04,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-07-20 20:04:04,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-20 20:04:04,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 22 conjunts are in the unsatisfiable core [2024-07-20 20:04:04,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-20 20:04:04,703 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-07-20 20:04:04,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-20 20:04:05,097 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-07-20 20:04:05,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363187100] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-20 20:04:05,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-20 20:04:05,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 30 [2024-07-20 20:04:05,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934638347] [2024-07-20 20:04:05,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-20 20:04:05,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-07-20 20:04:05,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-20 20:04:05,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-07-20 20:04:05,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=754, Unknown=0, NotChecked=0, Total=870 [2024-07-20 20:04:05,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:04:05,101 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-20 20:04:05,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.8333333333333333) internal successors, (55), 30 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) [2024-07-20 20:04:05,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:04:05,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-07-20 20:04:05,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-20 20:04:05,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-07-20 20:04:05,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-20 20:04:17,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-20 20:04:17,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-07-20 20:04:17,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-20 20:04:17,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-07-20 20:04:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-07-20 20:04:17,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-07-20 20:04:17,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:04:17,660 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-20 20:04:17,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-20 20:04:17,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1381866492, now seen corresponding path program 4 times [2024-07-20 20:04:17,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-20 20:04:17,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404922968] [2024-07-20 20:04:17,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-20 20:04:17,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-20 20:04:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-20 20:04:18,499 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 10 proven. 100 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-07-20 20:04:18,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-20 20:04:18,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404922968] [2024-07-20 20:04:18,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404922968] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-20 20:04:18,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927674296] [2024-07-20 20:04:18,500 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-07-20 20:04:18,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-20 20:04:18,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-20 20:04:18,502 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-20 20:04:18,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-07-20 20:04:18,691 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-07-20 20:04:18,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-20 20:04:18,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 97 conjunts are in the unsatisfiable core [2024-07-20 20:04:18,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-20 20:04:18,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-07-20 20:04:20,147 INFO L349 Elim1Store]: treesize reduction 100, result has 17.4 percent of original size [2024-07-20 20:04:20,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 76 [2024-07-20 20:04:20,217 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 4 proven. 81 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-07-20 20:04:20,217 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-20 20:05:39,576 WARN L293 SmtUtils]: Spent 6.73s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-20 20:06:01,277 WARN L293 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 213 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-20 20:06:25,597 WARN L293 SmtUtils]: Spent 10.52s on a formula simplification that was a NOOP. DAG size: 225 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-20 20:06:51,591 WARN L293 SmtUtils]: Spent 11.83s on a formula simplification that was a NOOP. DAG size: 228 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-20 20:08:48,080 WARN L293 SmtUtils]: Spent 10.75s on a formula simplification that was a NOOP. DAG size: 231 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-07-20 20:08:48,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13100 treesize of output 11388