/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION --traceabstraction.number.of.independence.relations.to.use.for.por 2 --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL '--traceabstraction.abstraction.used.for.commutativity.in.por.#2' NONE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m [2024-01-26 11:45:02,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 11:45:02,348 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-01-26 11:45:02,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 11:45:02,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 11:45:02,375 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 11:45:02,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 11:45:02,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 11:45:02,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 11:45:02,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 11:45:02,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 11:45:02,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 11:45:02,380 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 11:45:02,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 11:45:02,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 11:45:02,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 11:45:02,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 11:45:02,381 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 11:45:02,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 11:45:02,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 11:45:02,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 11:45:02,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 11:45:02,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 11:45:02,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 11:45:02,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 11:45:02,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 11:45:02,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 11:45:02,384 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-01-26 11:45:02,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 11:45:02,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 11:45:02,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 11:45:02,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 11:45:02,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 11:45:02,385 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 11:45:02,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 11:45:02,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 11:45:02,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-01-26 11:45:02,386 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 11:45:02,386 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-01-26 11:45:02,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Number of independence relations to use for POR -> 2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR #2 -> NONE [2024-01-26 11:45:02,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 11:45:02,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 11:45:02,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 11:45:02,579 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 11:45:02,580 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 11:45:02,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2024-01-26 11:45:03,660 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 11:45:03,808 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 11:45:03,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2024-01-26 11:45:03,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/79d03f9ba/b366d5cf519f49dcade328c8d2bf8bec/FLAG0797dd325 [2024-01-26 11:45:04,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/79d03f9ba/b366d5cf519f49dcade328c8d2bf8bec [2024-01-26 11:45:04,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 11:45:04,217 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 11:45:04,222 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 11:45:04,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 11:45:04,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 11:45:04,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2edf1ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04, skipping insertion in model container [2024-01-26 11:45:04,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,245 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 11:45:04,362 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c[2904,2917] [2024-01-26 11:45:04,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 11:45:04,381 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 11:45:04,407 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c[2904,2917] [2024-01-26 11:45:04,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 11:45:04,418 INFO L206 MainTranslator]: Completed translation [2024-01-26 11:45:04,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04 WrapperNode [2024-01-26 11:45:04,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 11:45:04,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 11:45:04,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 11:45:04,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 11:45:04,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,470 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 131 [2024-01-26 11:45:04,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 11:45:04,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 11:45:04,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 11:45:04,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 11:45:04,480 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 11:45:04,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 11:45:04,506 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 11:45:04,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 11:45:04,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (1/1) ... [2024-01-26 11:45:04,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 11:45:04,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 11:45:04,578 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) [2024-01-26 11:45:04,599 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 [2024-01-26 11:45:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 11:45:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 11:45:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-01-26 11:45:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-01-26 11:45:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 11:45:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 11:45:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 11:45:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 11:45:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-26 11:45:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-26 11:45:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-26 11:45:04,607 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-26 11:45:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-01-26 11:45:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-01-26 11:45:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-01-26 11:45:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-01-26 11:45:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-01-26 11:45:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 11:45:04,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 11:45:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 11:45:04,610 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 11:45:04,720 INFO L241 CfgBuilder]: Building ICFG [2024-01-26 11:45:04,722 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 11:45:05,001 INFO L282 CfgBuilder]: Performing block encoding [2024-01-26 11:45:05,019 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 11:45:05,019 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2024-01-26 11:45:05,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 11:45:05 BoogieIcfgContainer [2024-01-26 11:45:05,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 11:45:05,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 11:45:05,021 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 11:45:05,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 11:45:05,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 11:45:04" (1/3) ... [2024-01-26 11:45:05,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28482814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 11:45:05, skipping insertion in model container [2024-01-26 11:45:05,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 11:45:04" (2/3) ... [2024-01-26 11:45:05,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28482814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 11:45:05, skipping insertion in model container [2024-01-26 11:45:05,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 11:45:05" (3/3) ... [2024-01-26 11:45:05,025 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2024-01-26 11:45:05,035 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-26 11:45:05,041 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 11:45:05,042 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-26 11:45:05,042 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 11:45:05,146 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-01-26 11:45:05,183 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 11:45:05,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-01-26 11:45:05,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 11:45:05,186 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) [2024-01-26 11:45:05,192 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 [2024-01-26 11:45:05,211 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 11:45:05,222 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2024-01-26 11:45:05,223 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2024-01-26 11:45:05,223 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2024-01-26 11:45:05,228 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-01-26 11:45:05,232 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;@50dc3186, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 11:45:05,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-01-26 11:45:16,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 11:45:16,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 11:45:16,976 INFO L85 PathProgramCache]: Analyzing trace with hash -239051063, now seen corresponding path program 1 times [2024-01-26 11:45:16,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 11:45:16,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046682614] [2024-01-26 11:45:16,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 11:45:16,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 11:45:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 11:45:17,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 11:45:17,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 11:45:17,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046682614] [2024-01-26 11:45:17,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046682614] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 11:45:17,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 11:45:17,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 11:45:17,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978467824] [2024-01-26 11:45:17,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 11:45:17,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-26 11:45:17,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 11:45:17,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-26 11:45:17,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-26 11:45:17,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:17,279 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 11:45:17,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 67.5) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 11:45:17,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:20,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:20,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 11:45:20,896 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 11:45:20,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 11:45:20,898 INFO L85 PathProgramCache]: Analyzing trace with hash 721550512, now seen corresponding path program 1 times [2024-01-26 11:45:20,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 11:45:20,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314816727] [2024-01-26 11:45:20,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 11:45:20,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 11:45:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 11:45:21,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 11:45:21,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 11:45:21,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314816727] [2024-01-26 11:45:21,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314816727] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 11:45:21,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 11:45:21,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-26 11:45:21,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084467936] [2024-01-26 11:45:21,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 11:45:21,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-26 11:45:21,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 11:45:21,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-26 11:45:21,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-01-26 11:45:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:21,864 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 11:45:21,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 11:45:21,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:21,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:25,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:25,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 11:45:25,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 11:45:25,850 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 11:45:25,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 11:45:25,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1193861011, now seen corresponding path program 1 times [2024-01-26 11:45:25,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 11:45:25,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684355799] [2024-01-26 11:45:25,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 11:45:25,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 11:45:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 11:45:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 11:45:26,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 11:45:26,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684355799] [2024-01-26 11:45:26,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684355799] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 11:45:26,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602783057] [2024-01-26 11:45:26,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 11:45:26,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 11:45:26,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 11:45:26,212 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) [2024-01-26 11:45:26,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-01-26 11:45:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 11:45:26,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 7 conjunts are in the unsatisfiable core [2024-01-26 11:45:26,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 11:45:26,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 11:45:26,568 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 11:45:26,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 11:45:26,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602783057] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 11:45:26,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 11:45:26,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-01-26 11:45:26,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573780596] [2024-01-26 11:45:26,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 11:45:26,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-26 11:45:26,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 11:45:26,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-26 11:45:26,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-01-26 11:45:26,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:26,705 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 11:45:26,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 9 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 11:45:26,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:26,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 11:45:26,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:31,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:31,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 11:45:31,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 11:45:31,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-01-26 11:45:31,876 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 [2024-01-26 11:45:31,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 11:45:31,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 11:45:31,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1107976560, now seen corresponding path program 1 times [2024-01-26 11:45:31,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 11:45:31,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201833420] [2024-01-26 11:45:31,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 11:45:31,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 11:45:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 11:45:32,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-26 11:45:32,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 11:45:32,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201833420] [2024-01-26 11:45:32,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201833420] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 11:45:32,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 11:45:32,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-26 11:45:32,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467607587] [2024-01-26 11:45:32,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 11:45:32,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-26 11:45:32,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 11:45:32,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-26 11:45:32,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-01-26 11:45:32,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:32,347 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 11:45:32,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 11:45:32,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:32,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 11:45:32,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 11:45:32,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:44,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:44,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 11:45:44,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 11:45:44,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-26 11:45:44,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 11:45:44,400 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 11:45:44,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 11:45:44,401 INFO L85 PathProgramCache]: Analyzing trace with hash 821035437, now seen corresponding path program 1 times [2024-01-26 11:45:44,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 11:45:44,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951351203] [2024-01-26 11:45:44,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 11:45:44,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 11:45:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 11:45:44,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-26 11:45:44,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 11:45:44,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951351203] [2024-01-26 11:45:44,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951351203] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 11:45:44,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570769372] [2024-01-26 11:45:44,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 11:45:44,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 11:45:44,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 11:45:44,763 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) [2024-01-26 11:45:44,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-01-26 11:45:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 11:45:44,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 7 conjunts are in the unsatisfiable core [2024-01-26 11:45:44,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 11:45:45,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-26 11:45:45,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 11:45:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-26 11:45:45,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570769372] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 11:45:45,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 11:45:45,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2024-01-26 11:45:45,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946379649] [2024-01-26 11:45:45,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 11:45:45,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-01-26 11:45:45,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 11:45:45,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-01-26 11:45:45,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-01-26 11:45:45,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:45,327 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 11:45:45,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.833333333333332) internal successors, (262), 12 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 11:45:45,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:45:45,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 11:45:45,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 11:45:45,327 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-01-26 11:45:45,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:46:00,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:46:00,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 11:46:00,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 11:46:00,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-26 11:46:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-01-26 11:46:00,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-01-26 11:46:00,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 11:46:00,375 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 11:46:00,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 11:46:00,376 INFO L85 PathProgramCache]: Analyzing trace with hash -2028601744, now seen corresponding path program 1 times [2024-01-26 11:46:00,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 11:46:00,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564308438] [2024-01-26 11:46:00,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 11:46:00,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 11:46:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 11:46:00,665 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 11:46:00,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 11:46:00,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564308438] [2024-01-26 11:46:00,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564308438] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 11:46:00,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 11:46:00,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-01-26 11:46:00,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205702468] [2024-01-26 11:46:00,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 11:46:00,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-26 11:46:00,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 11:46:00,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-26 11:46:00,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-01-26 11:46:00,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:46:00,671 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 11:46:00,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 11:46:00,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:46:00,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 11:46:00,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 11:46:00,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-01-26 11:46:00,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-01-26 11:46:00,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:46:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:46:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-01-26 11:46:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 11:46:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-26 11:46:33,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-01-26 11:46:33,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-01-26 11:46:33,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-26 11:46:33,222 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 11:46:33,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 11:46:33,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1879631507, now seen corresponding path program 1 times [2024-01-26 11:46:33,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 11:46:33,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378779142] [2024-01-26 11:46:33,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 11:46:33,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 11:46:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 11:46:33,455 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 11:46:33,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 11:46:33,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378779142] [2024-01-26 11:46:33,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378779142] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 11:46:33,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065541955] [2024-01-26 11:46:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 11:46:33,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 11:46:33,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 11:46:33,459 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) [2024-01-26 11:46:33,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-01-26 11:46:33,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 11:46:33,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 7 conjunts are in the unsatisfiable core [2024-01-26 11:46:33,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 11:46:33,937 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 11:46:33,937 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 11:46:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-01-26 11:46:34,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065541955] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 11:46:34,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 11:46:34,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-01-26 11:46:34,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101468233] [2024-01-26 11:46:34,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 11:46:34,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-26 11:46:34,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 11:46:34,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-26 11:46:34,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-01-26 11:46:34,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:46:34,067 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 11:46:34,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.88888888888889) internal successors, (206), 9 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 11:46:34,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 11:46:34,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-01-26 11:46:34,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 11:46:34,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-01-26 11:46:34,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2024-01-26 11:46:34,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2024-01-26 11:46:34,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.