/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/popl20-more-min-array.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.dynamic-abstractions-57af04c-m [2024-01-26 12:40:37,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 12:40:37,787 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-01-26 12:40:37,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 12:40:37,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 12:40:37,812 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 12:40:37,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 12:40:37,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 12:40:37,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 12:40:37,817 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 12:40:37,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 12:40:37,817 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 12:40:37,817 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 12:40:37,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 12:40:37,818 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 12:40:37,819 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 12:40:37,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 12:40:37,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 12:40:37,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 12:40:37,819 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 12:40:37,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 12:40:37,820 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 12:40:37,820 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 12:40:37,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 12:40:37,820 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 12:40:37,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 12:40:37,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 12:40:37,821 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-01-26 12:40:37,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 12:40:37,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 12:40:37,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 12:40:37,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 12:40:37,822 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 12:40:37,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 12:40:37,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 12:40:37,823 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 12:40:37,823 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-01-26 12:40:37,823 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 12:40:37,823 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-01-26 12:40:37,823 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Number of independence relations to use for POR -> 2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR #2 -> NONE [2024-01-26 12:40:37,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 12:40:38,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 12:40:38,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 12:40:38,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 12:40:38,020 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 12:40:38,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-min-array.wvr.c [2024-01-26 12:40:39,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 12:40:39,238 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 12:40:39,239 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-min-array.wvr.c [2024-01-26 12:40:39,245 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b91aafacc/cb738b471d0c4484b6946b1fea8ef370/FLAGb0076c9ac [2024-01-26 12:40:39,258 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b91aafacc/cb738b471d0c4484b6946b1fea8ef370 [2024-01-26 12:40:39,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 12:40:39,263 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 12:40:39,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 12:40:39,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 12:40:39,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 12:40:39,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1184df26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39, skipping insertion in model container [2024-01-26 12:40:39,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,291 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 12:40:39,406 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/popl20-more-min-array.wvr.c[2592,2605] [2024-01-26 12:40:39,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 12:40:39,423 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 12:40:39,437 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/popl20-more-min-array.wvr.c[2592,2605] [2024-01-26 12:40:39,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 12:40:39,450 INFO L206 MainTranslator]: Completed translation [2024-01-26 12:40:39,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39 WrapperNode [2024-01-26 12:40:39,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 12:40:39,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 12:40:39,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 12:40:39,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 12:40:39,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,484 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 104 [2024-01-26 12:40:39,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 12:40:39,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 12:40:39,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 12:40:39,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 12:40:39,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 12:40:39,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 12:40:39,509 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 12:40:39,509 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 12:40:39,510 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (1/1) ... [2024-01-26 12:40:39,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-01-26 12:40:39,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 12:40:39,554 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 12:40:39,584 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 12:40:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 12:40:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 12:40:39,589 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 12:40:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 12:40:39,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 12:40:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-26 12:40:39,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-26 12:40:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-01-26 12:40:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 12:40:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-01-26 12:40:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-26 12:40:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-26 12:40:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-01-26 12:40:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 12:40:39,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 12:40:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-01-26 12:40:39,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 12:40:39,593 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 12:40:39,697 INFO L241 CfgBuilder]: Building ICFG [2024-01-26 12:40:39,698 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 12:40:39,957 INFO L282 CfgBuilder]: Performing block encoding [2024-01-26 12:40:40,029 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 12:40:40,029 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-26 12:40:40,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 12:40:40 BoogieIcfgContainer [2024-01-26 12:40:40,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 12:40:40,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 12:40:40,031 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 12:40:40,033 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 12:40:40,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 12:40:39" (1/3) ... [2024-01-26 12:40:40,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0b5c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 12:40:40, skipping insertion in model container [2024-01-26 12:40:40,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 12:40:39" (2/3) ... [2024-01-26 12:40:40,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0b5c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 12:40:40, skipping insertion in model container [2024-01-26 12:40:40,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 12:40:40" (3/3) ... [2024-01-26 12:40:40,040 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-array.wvr.c [2024-01-26 12:40:40,047 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-01-26 12:40:40,053 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 12:40:40,053 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-01-26 12:40:40,053 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 12:40:40,132 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-26 12:40:40,168 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 12:40:40,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-01-26 12:40:40,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 12:40:40,176 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 12:40:40,177 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 12:40:40,203 INFO L103 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 12:40:40,220 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2024-01-26 12:40:40,220 WARN L169 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2024-01-26 12:40:40,220 WARN L170 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2024-01-26 12:40:40,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2024-01-26 12:40:40,231 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;@4c70953e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 12:40:40,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-01-26 12:40:40,742 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 12:40:40,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 12:40:40,746 INFO L85 PathProgramCache]: Analyzing trace with hash 446937731, now seen corresponding path program 1 times [2024-01-26 12:40:40,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 12:40:40,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258887835] [2024-01-26 12:40:40,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:40:40,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 12:40:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:40:40,906 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 12:40:40,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 12:40:40,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258887835] [2024-01-26 12:40:40,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258887835] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 12:40:40,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 12:40:40,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 12:40:40,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725951521] [2024-01-26 12:40:40,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 12:40:40,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-26 12:40:40,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 12:40:40,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-26 12:40:40,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-26 12:40:40,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:40,940 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 12:40:40,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 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 12:40:40,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:41,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:41,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 12:40:41,082 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 12:40:41,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 12:40:41,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1999056678, now seen corresponding path program 1 times [2024-01-26 12:40:41,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 12:40:41,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752225319] [2024-01-26 12:40:41,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:40:41,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 12:40:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:40:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 12:40:41,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 12:40:41,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752225319] [2024-01-26 12:40:41,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752225319] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 12:40:41,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 12:40:41,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-01-26 12:40:41,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070670342] [2024-01-26 12:40:41,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 12:40:41,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-01-26 12:40:41,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 12:40:41,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-01-26 12:40:41,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-01-26 12:40:41,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:41,527 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 12:40:41,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 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 12:40:41,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:41,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:41,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:41,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 12:40:41,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 12:40:41,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 12:40:41,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 12:40:41,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1191725121, now seen corresponding path program 1 times [2024-01-26 12:40:41,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 12:40:41,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873360576] [2024-01-26 12:40:41,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:40:41,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 12:40:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:40:42,036 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 12:40:42,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 12:40:42,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873360576] [2024-01-26 12:40:42,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873360576] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 12:40:42,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252344882] [2024-01-26 12:40:42,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:40:42,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 12:40:42,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 12:40:42,098 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 12:40:42,122 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 12:40:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:40:42,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjunts are in the unsatisfiable core [2024-01-26 12:40:42,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 12:40:42,324 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 12:40:42,324 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 12:40:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-26 12:40:42,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252344882] provided 1 perfect and 1 imperfect interpolant sequences [2024-01-26 12:40:42,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-01-26 12:40:42,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2024-01-26 12:40:42,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794643106] [2024-01-26 12:40:42,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 12:40:42,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-01-26 12:40:42,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 12:40:42,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-01-26 12:40:42,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-01-26 12:40:42,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:42,497 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 12:40:42,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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 12:40:42,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:42,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 12:40:42,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:42,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:42,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 12:40:42,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-26 12:40:42,656 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 12:40:42,844 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 12:40:42,844 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 12:40:42,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 12:40:42,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1368138406, now seen corresponding path program 1 times [2024-01-26 12:40:42,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 12:40:42,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153009250] [2024-01-26 12:40:42,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:40:42,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 12:40:42,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:40:43,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-26 12:40:43,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 12:40:43,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153009250] [2024-01-26 12:40:43,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153009250] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 12:40:43,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974962261] [2024-01-26 12:40:43,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:40:43,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 12:40:43,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 12:40:43,086 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 12:40:43,113 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 12:40:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:40:43,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 10 conjunts are in the unsatisfiable core [2024-01-26 12:40:43,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 12:40:43,414 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-26 12:40:43,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 12:40:43,632 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-01-26 12:40:43,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974962261] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 12:40:43,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 12:40:43,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2024-01-26 12:40:43,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279781073] [2024-01-26 12:40:43,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 12:40:43,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-01-26 12:40:43,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 12:40:43,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-01-26 12:40:43,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2024-01-26 12:40:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:43,637 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 12:40:43,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.28) internal successors, (182), 25 states have internal predecessors, (182), 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 12:40:43,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:43,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 12:40:43,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-01-26 12:40:43,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:44,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 12:40:44,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-26 12:40:44,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-01-26 12:40:44,177 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 12:40:44,377 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 [2024-01-26 12:40:44,377 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 12:40:44,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 12:40:44,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1353853599, now seen corresponding path program 2 times [2024-01-26 12:40:44,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 12:40:44,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090868535] [2024-01-26 12:40:44,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:40:44,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 12:40:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:40:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-26 12:40:44,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 12:40:44,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090868535] [2024-01-26 12:40:44,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090868535] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 12:40:44,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896609046] [2024-01-26 12:40:44,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-01-26 12:40:44,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 12:40:44,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 12:40:44,565 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 12:40:44,568 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 12:40:44,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-01-26 12:40:44,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 12:40:44,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjunts are in the unsatisfiable core [2024-01-26 12:40:44,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 12:40:44,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-26 12:40:44,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 12:40:44,843 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-01-26 12:40:44,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896609046] provided 0 perfect and 2 imperfect interpolant sequences [2024-01-26 12:40:44,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-01-26 12:40:44,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 21 [2024-01-26 12:40:44,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475696094] [2024-01-26 12:40:44,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-01-26 12:40:44,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-01-26 12:40:44,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 12:40:44,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-01-26 12:40:44,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-01-26 12:40:44,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:44,845 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-01-26 12:40:44,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.80952380952381) internal successors, (227), 21 states have internal predecessors, (227), 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 12:40:44,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:44,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-01-26 12:40:44,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2024-01-26 12:40:44,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-01-26 12:40:44,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:45,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-26 12:40:45,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-01-26 12:40:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-01-26 12:40:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-01-26 12:40:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-01-26 12:40:45,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-01-26 12:40:45,680 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 [2024-01-26 12:40:45,680 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-01-26 12:40:45,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 12:40:45,681 INFO L85 PathProgramCache]: Analyzing trace with hash 824642312, now seen corresponding path program 3 times [2024-01-26 12:40:45,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 12:40:45,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272757055] [2024-01-26 12:40:45,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 12:40:45,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 12:40:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 12:40:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 12:40:48,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 12:40:48,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272757055] [2024-01-26 12:40:48,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272757055] provided 0 perfect and 1 imperfect interpolant sequences [2024-01-26 12:40:48,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410585408] [2024-01-26 12:40:48,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-01-26 12:40:48,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-01-26 12:40:48,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-01-26 12:40:48,384 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) [2024-01-26 12:40:48,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-01-26 12:40:48,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-01-26 12:40:48,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-01-26 12:40:48,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 46 conjunts are in the unsatisfiable core [2024-01-26 12:40:48,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-01-26 12:40:50,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-26 12:40:50,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 83 [2024-01-26 12:40:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 12:40:51,162 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-01-26 12:40:54,161 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-01-26 12:40:54,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 401 treesize of output 473 [2024-01-26 12:42:09,541 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-01-26 12:42:38,271 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-01-26 12:43:08,804 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-01-26 12:43:08,805 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-01-26 12:43:08,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-01-26 12:43:08,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-01-26 12:43:09,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-01-26 12:43:09,006 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:268) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:410) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:394) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:500) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:416) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 68 more [2024-01-26 12:43:09,011 INFO L158 Benchmark]: Toolchain (without parser) took 149748.04ms. Allocated memory was 238.0MB in the beginning and 1.1GB in the end (delta: 854.6MB). Free memory was 185.0MB in the beginning and 886.4MB in the end (delta: -701.4MB). Peak memory consumption was 663.4MB. Max. memory is 8.0GB. [2024-01-26 12:43:09,011 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 169.9MB. Free memory was 119.7MB in the beginning and 119.5MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB. [2024-01-26 12:43:09,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.49ms. Allocated memory is still 238.0MB. Free memory was 184.5MB in the beginning and 172.5MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-01-26 12:43:09,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.94ms. Allocated memory is still 238.0MB. Free memory was 172.5MB in the beginning and 170.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-01-26 12:43:09,012 INFO L158 Benchmark]: Boogie Preprocessor took 23.25ms. Allocated memory is still 238.0MB. Free memory was 170.9MB in the beginning and 169.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-01-26 12:43:09,012 INFO L158 Benchmark]: RCFGBuilder took 520.45ms. Allocated memory is still 238.0MB. Free memory was 168.8MB in the beginning and 145.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2024-01-26 12:43:09,012 INFO L158 Benchmark]: TraceAbstraction took 148979.28ms. Allocated memory was 238.0MB in the beginning and 1.1GB in the end (delta: 854.6MB). Free memory was 145.2MB in the beginning and 886.4MB in the end (delta: -741.2MB). Peak memory consumption was 623.5MB. Max. memory is 8.0GB. [2024-01-26 12:43:09,013 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 169.9MB. Free memory was 119.7MB in the beginning and 119.5MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 186.49ms. Allocated memory is still 238.0MB. Free memory was 184.5MB in the beginning and 172.5MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.94ms. Allocated memory is still 238.0MB. Free memory was 172.5MB in the beginning and 170.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.25ms. Allocated memory is still 238.0MB. Free memory was 170.9MB in the beginning and 169.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 520.45ms. Allocated memory is still 238.0MB. Free memory was 168.8MB in the beginning and 145.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 148979.28ms. Allocated memory was 238.0MB in the beginning and 1.1GB in the end (delta: 854.6MB). Free memory was 145.2MB in the beginning and 886.4MB in the end (delta: -741.2MB). Peak memory consumption was 623.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-01-26 12:43:09,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 Received shutdown request...