/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/unroll-cond-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-10 14:23:36,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-10 14:23:36,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-10 14:23:36,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-10 14:23:36,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-10 14:23:36,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-10 14:23:36,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-10 14:23:36,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-10 14:23:36,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-10 14:23:36,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-10 14:23:36,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-10 14:23:36,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-10 14:23:36,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-10 14:23:36,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-10 14:23:36,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-10 14:23:36,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-10 14:23:36,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-10 14:23:36,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-10 14:23:36,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-10 14:23:36,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-10 14:23:36,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-01-10 14:23:36,511 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-10 14:23:36,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-10 14:23:36,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-10 14:23:36,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-10 14:23:36,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-10 14:23:36,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-10 14:23:36,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-10 14:23:36,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-10 14:23:36,514 INFO L138 SettingsManager]: * Use SBE=true [2023-01-10 14:23:36,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-10 14:23:36,515 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-10 14:23:36,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-10 14:23:36,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-10 14:23:36,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-10 14:23:36,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-10 14:23:36,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-10 14:23:36,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-10 14:23:36,516 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-10 14:23:36,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-10 14:23:36,517 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-10 14:23:36,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-10 14:23:36,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-10 14:23:36,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-10 14:23:36,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-10 14:23:36,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-10 14:23:36,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 14:23:36,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-10 14:23:36,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-10 14:23:36,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-10 14:23:36,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-10 14:23:36,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-10 14:23:36,518 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-10 14:23:36,519 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-10 14:23:36,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-10 14:23:36,519 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-10 14:23:36,519 INFO L138 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 14:23:36,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-10 14:23:36,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-10 14:23:36,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-10 14:23:36,795 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-10 14:23:36,796 INFO L275 PluginConnector]: CDTParser initialized [2023-01-10 14:23:36,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-cond-2.wvr.c [2023-01-10 14:23:37,935 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-10 14:23:38,144 INFO L351 CDTParser]: Found 1 translation units. [2023-01-10 14:23:38,145 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-2.wvr.c [2023-01-10 14:23:38,151 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1b9973f/ef58a4b7f1d5413d8967e2f09c7ff242/FLAG5ff2f3c7e [2023-01-10 14:23:38,170 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb1b9973f/ef58a4b7f1d5413d8967e2f09c7ff242 [2023-01-10 14:23:38,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-10 14:23:38,176 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-10 14:23:38,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-10 14:23:38,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-10 14:23:38,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-10 14:23:38,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dcef423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38, skipping insertion in model container [2023-01-10 14:23:38,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-10 14:23:38,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-10 14:23:38,390 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-2.wvr.c[2474,2487] [2023-01-10 14:23:38,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 14:23:38,407 INFO L203 MainTranslator]: Completed pre-run [2023-01-10 14:23:38,445 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-cond-2.wvr.c[2474,2487] [2023-01-10 14:23:38,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 14:23:38,464 INFO L208 MainTranslator]: Completed translation [2023-01-10 14:23:38,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38 WrapperNode [2023-01-10 14:23:38,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-10 14:23:38,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-10 14:23:38,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-10 14:23:38,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-10 14:23:38,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,520 INFO L138 Inliner]: procedures = 24, calls = 33, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 144 [2023-01-10 14:23:38,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-10 14:23:38,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-10 14:23:38,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-10 14:23:38,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-10 14:23:38,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,557 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-10 14:23:38,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-10 14:23:38,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-10 14:23:38,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-10 14:23:38,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (1/1) ... [2023-01-10 14:23:38,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 14:23:38,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:23:38,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-10 14:23:38,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-10 14:23:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-10 14:23:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-10 14:23:38,643 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-10 14:23:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-10 14:23:38,643 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-10 14:23:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-10 14:23:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-10 14:23:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-10 14:23:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-10 14:23:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-10 14:23:38,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-10 14:23:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-10 14:23:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-10 14:23:38,647 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-10 14:23:38,754 INFO L236 CfgBuilder]: Building ICFG [2023-01-10 14:23:38,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-10 14:23:39,050 INFO L277 CfgBuilder]: Performing block encoding [2023-01-10 14:23:39,058 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-10 14:23:39,058 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-01-10 14:23:39,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:23:39 BoogieIcfgContainer [2023-01-10 14:23:39,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-10 14:23:39,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-10 14:23:39,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-10 14:23:39,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-10 14:23:39,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:23:38" (1/3) ... [2023-01-10 14:23:39,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1033cbce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:23:39, skipping insertion in model container [2023-01-10 14:23:39,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:23:38" (2/3) ... [2023-01-10 14:23:39,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1033cbce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:23:39, skipping insertion in model container [2023-01-10 14:23:39,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:23:39" (3/3) ... [2023-01-10 14:23:39,066 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-2.wvr.c [2023-01-10 14:23:39,073 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-10 14:23:39,080 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-10 14:23:39,081 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-10 14:23:39,081 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-10 14:23:39,188 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-10 14:23:39,237 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 14:23:39,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 14:23:39,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:23:39,240 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-10 14:23:39,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-01-10 14:23:39,298 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 14:23:39,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-01-10 14:23:39,311 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=LoopsAndPotentialCycles, 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;@45cfce99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 14:23:39,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 14:23:39,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:23:39,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:23:39,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1426607131, now seen corresponding path program 1 times [2023-01-10 14:23:39,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:23:39,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068631427] [2023-01-10 14:23:39,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:23:39,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:23:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:23:39,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:23:39,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:23:39,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068631427] [2023-01-10 14:23:39,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068631427] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 14:23:39,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 14:23:39,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 14:23:39,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039284382] [2023-01-10 14:23:39,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 14:23:39,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 14:23:39,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:23:39,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 14:23:39,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 14:23:39,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:39,827 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:23:39,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 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) [2023-01-10 14:23:39,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:39,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-10 14:23:39,903 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:23:39,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:23:39,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1412129430, now seen corresponding path program 1 times [2023-01-10 14:23:39,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:23:39,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401385220] [2023-01-10 14:23:39,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:23:39,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:23:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:23:40,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:23:40,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:23:40,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401385220] [2023-01-10 14:23:40,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401385220] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 14:23:40,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 14:23:40,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-10 14:23:40,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251751449] [2023-01-10 14:23:40,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 14:23:40,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-10 14:23:40,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:23:40,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-10 14:23:40,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-10 14:23:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:40,371 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:23:40,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2023-01-10 14:23:40,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:40,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:40,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:23:40,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-10 14:23:40,483 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:23:40,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:23:40,483 INFO L85 PathProgramCache]: Analyzing trace with hash 421517364, now seen corresponding path program 1 times [2023-01-10 14:23:40,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:23:40,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244244997] [2023-01-10 14:23:40,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:23:40,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:23:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:23:40,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 14:23:40,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:23:40,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244244997] [2023-01-10 14:23:40,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244244997] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 14:23:40,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 14:23:40,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-01-10 14:23:40,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126266465] [2023-01-10 14:23:40,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 14:23:40,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-10 14:23:40,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:23:40,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-10 14:23:40,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-01-10 14:23:40,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:40,819 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:23:40,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 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) [2023-01-10 14:23:40,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:40,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:23:40,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:40,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:40,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:23:40,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:23:40,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-10 14:23:40,947 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:23:40,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:23:40,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1607917205, now seen corresponding path program 1 times [2023-01-10 14:23:40,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:23:40,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378889533] [2023-01-10 14:23:40,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:23:40,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:23:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:23:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 14:23:41,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:23:41,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378889533] [2023-01-10 14:23:41,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378889533] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:23:41,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569301858] [2023-01-10 14:23:41,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:23:41,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:23:41,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:23:41,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 14:23:41,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-10 14:23:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:23:41,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 27 conjunts are in the unsatisfiable core [2023-01-10 14:23:41,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:23:42,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-01-10 14:23:42,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 14:23:42,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:23:42,331 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2023-01-10 14:23:42,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2023-01-10 14:23:42,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 14:23:42,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569301858] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:23:42,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:23:42,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 9] total 17 [2023-01-10 14:23:42,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637972823] [2023-01-10 14:23:42,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:23:42,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-01-10 14:23:42,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:23:42,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-01-10 14:23:42,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-01-10 14:23:42,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:42,432 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:23:42,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.882352941176471) internal successors, (202), 17 states have internal predecessors, (202), 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) [2023-01-10 14:23:42,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:42,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:23:42,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:23:42,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:42,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:42,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:23:42,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:23:42,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 14:23:42,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-01-10 14:23:43,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-01-10 14:23:43,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:23:43,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:23:43,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1387175243, now seen corresponding path program 2 times [2023-01-10 14:23:43,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:23:43,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786899530] [2023-01-10 14:23:43,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:23:43,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:23:43,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:23:43,401 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-10 14:23:43,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:23:43,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786899530] [2023-01-10 14:23:43,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786899530] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:23:43,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319031891] [2023-01-10 14:23:43,402 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 14:23:43,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:23:43,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:23:43,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 14:23:43,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-10 14:23:43,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 14:23:43,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:23:43,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 39 conjunts are in the unsatisfiable core [2023-01-10 14:23:43,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:23:44,603 INFO L173 IndexEqualityManager]: detected equality via solver [2023-01-10 14:23:44,605 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 14:23:44,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2023-01-10 14:23:44,690 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 14:23:44,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:23:44,786 INFO L321 Elim1Store]: treesize reduction 5, result has 58.3 percent of original size [2023-01-10 14:23:44,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2023-01-10 14:23:45,686 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-10 14:23:45,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319031891] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:23:45,686 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:23:45,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 23, 17] total 41 [2023-01-10 14:23:45,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654558189] [2023-01-10 14:23:45,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:23:45,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-01-10 14:23:45,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:23:45,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-01-10 14:23:45,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1484, Unknown=0, NotChecked=0, Total=1640 [2023-01-10 14:23:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:45,689 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:23:45,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 7.804878048780488) internal successors, (320), 41 states have internal predecessors, (320), 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) [2023-01-10 14:23:45,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:45,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:23:45,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:23:45,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 14:23:45,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:48,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:48,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:23:48,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:23:48,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 14:23:48,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-01-10 14:23:48,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-10 14:23:48,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:23:48,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:23:48,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:23:48,581 INFO L85 PathProgramCache]: Analyzing trace with hash -896890680, now seen corresponding path program 1 times [2023-01-10 14:23:48,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:23:48,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359114822] [2023-01-10 14:23:48,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:23:48,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:23:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:23:52,830 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:23:52,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:23:52,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359114822] [2023-01-10 14:23:52,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359114822] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:23:52,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495055404] [2023-01-10 14:23:52,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:23:52,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:23:52,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:23:52,836 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 14:23:52,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-10 14:23:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:23:52,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 72 conjunts are in the unsatisfiable core [2023-01-10 14:23:52,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:23:56,222 INFO L321 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2023-01-10 14:23:56,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 40 [2023-01-10 14:23:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:23:56,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:23:58,790 INFO L321 Elim1Store]: treesize reduction 15, result has 90.4 percent of original size [2023-01-10 14:23:58,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 172 treesize of output 201 [2023-01-10 14:23:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:23:59,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495055404] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:23:59,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:23:59,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 42, 37] total 104 [2023-01-10 14:23:59,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452700560] [2023-01-10 14:23:59,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:23:59,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2023-01-10 14:23:59,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:23:59,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2023-01-10 14:23:59,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=998, Invalid=9714, Unknown=0, NotChecked=0, Total=10712 [2023-01-10 14:23:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:59,932 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:23:59,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 4.25) internal successors, (442), 104 states have internal predecessors, (442), 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) [2023-01-10 14:23:59,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:23:59,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:23:59,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:23:59,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 14:23:59,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2023-01-10 14:23:59,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:24:06,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:24:06,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:24:06,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:24:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 14:24:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-01-10 14:24:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-01-10 14:24:06,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-10 14:24:06,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:24:06,498 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:24:06,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:24:06,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1105480921, now seen corresponding path program 2 times [2023-01-10 14:24:06,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:24:06,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418517298] [2023-01-10 14:24:06,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:24:06,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:24:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:24:07,385 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-01-10 14:24:07,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:24:07,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418517298] [2023-01-10 14:24:07,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418517298] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:24:07,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505210474] [2023-01-10 14:24:07,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 14:24:07,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:24:07,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:24:07,388 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 14:24:07,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-10 14:24:07,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 14:24:07,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:24:07,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 33 conjunts are in the unsatisfiable core [2023-01-10 14:24:07,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:24:08,431 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-01-10 14:24:08,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:24:10,131 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-01-10 14:24:10,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505210474] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:24:10,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:24:10,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 20] total 45 [2023-01-10 14:24:10,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106673089] [2023-01-10 14:24:10,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:24:10,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-01-10 14:24:10,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:24:10,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-01-10 14:24:10,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=1740, Unknown=0, NotChecked=0, Total=1980 [2023-01-10 14:24:10,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:24:10,135 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:24:10,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 6.644444444444445) internal successors, (299), 45 states have internal predecessors, (299), 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) [2023-01-10 14:24:10,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:24:10,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:24:10,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:24:10,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 14:24:10,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2023-01-10 14:24:10,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2023-01-10 14:24:10,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:25:45,835 WARN L222 SmtUtils]: Spent 7.86s on a formula simplification. DAG size of input: 120 DAG size of output: 109 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:26:03,078 WARN L222 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 124 DAG size of output: 111 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:26:43,739 WARN L222 SmtUtils]: Spent 26.35s on a formula simplification. DAG size of input: 136 DAG size of output: 133 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:27:04,766 WARN L222 SmtUtils]: Spent 7.93s on a formula simplification that was a NOOP. DAG size: 130 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:27:34,108 WARN L222 SmtUtils]: Spent 13.14s on a formula simplification that was a NOOP. DAG size: 137 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:27:36,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:27:37,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:27:38,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:27:57,725 WARN L222 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:28:16,760 WARN L222 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:28:18,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:29:00,645 WARN L222 SmtUtils]: Spent 17.78s on a formula simplification. DAG size of input: 133 DAG size of output: 114 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:29:26,217 WARN L222 SmtUtils]: Spent 11.45s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:29:29,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:29:30,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:29:34,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:29:36,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:29:41,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:30:06,655 WARN L222 SmtUtils]: Spent 14.54s on a formula simplification. DAG size of input: 122 DAG size of output: 110 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:30:16,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:30:42,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:30:43,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:30:46,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:31:01,729 WARN L222 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 118 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:31:09,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:31:50,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:32:12,087 WARN L222 SmtUtils]: Spent 13.00s on a formula simplification. DAG size of input: 124 DAG size of output: 121 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:32:15,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 14:32:38,283 WARN L222 SmtUtils]: Spent 8.47s on a formula simplification. DAG size of input: 121 DAG size of output: 102 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:32:56,511 WARN L222 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 14:33:18,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:33:18,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:33:18,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:33:18,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 14:33:18,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-01-10 14:33:18,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-01-10 14:33:18,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2023-01-10 14:33:18,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-10 14:33:18,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:33:18,468 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:33:18,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:33:18,469 INFO L85 PathProgramCache]: Analyzing trace with hash -870807935, now seen corresponding path program 3 times [2023-01-10 14:33:18,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:33:18,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357723017] [2023-01-10 14:33:18,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:33:18,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:33:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:34:36,528 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 14:34:36,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:34:36,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357723017] [2023-01-10 14:34:36,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357723017] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:34:36,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948300179] [2023-01-10 14:34:36,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 14:34:36,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:34:36,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:34:36,536 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 14:34:36,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-10 14:34:37,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-01-10 14:34:37,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:34:37,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 81 conjunts are in the unsatisfiable core [2023-01-10 14:34:37,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:34:38,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-01-10 14:34:38,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-10 14:34:38,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-10 14:34:41,043 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 14:34:41,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 107 [2023-01-10 14:34:41,165 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-01-10 14:34:41,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:34:44,998 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-10 14:34:44,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 263 treesize of output 156 [2023-01-10 14:34:45,796 INFO L321 Elim1Store]: treesize reduction 5, result has 98.8 percent of original size [2023-01-10 14:34:45,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 302 treesize of output 709 [2023-01-10 14:34:46,727 INFO L321 Elim1Store]: treesize reduction 12, result has 97.2 percent of original size [2023-01-10 14:34:46,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 222 treesize of output 582 [2023-01-10 14:34:47,914 INFO L321 Elim1Store]: treesize reduction 12, result has 97.2 percent of original size [2023-01-10 14:34:47,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 80 treesize of output 501 [2023-01-10 14:35:47,919 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-01-10 14:35:47,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948300179] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:35:47,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:35:47,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 37, 31] total 125 [2023-01-10 14:35:47,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219763689] [2023-01-10 14:35:47,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:35:47,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 125 states [2023-01-10 14:35:47,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:35:47,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2023-01-10 14:35:47,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=688, Invalid=14730, Unknown=82, NotChecked=0, Total=15500 [2023-01-10 14:35:47,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:35:47,925 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:35:47,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 125 states, 125 states have (on average 4.76) internal successors, (595), 125 states have internal predecessors, (595), 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) [2023-01-10 14:35:47,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:35:47,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:35:47,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:35:47,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 14:35:47,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2023-01-10 14:35:47,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2023-01-10 14:35:47,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2023-01-10 14:35:47,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:35:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:35:59,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:35:59,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:35:59,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-01-10 14:35:59,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-01-10 14:35:59,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-01-10 14:35:59,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2023-01-10 14:35:59,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-01-10 14:35:59,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-10 14:35:59,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:35:59,794 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 14:35:59,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 14:35:59,794 INFO L85 PathProgramCache]: Analyzing trace with hash -181859134, now seen corresponding path program 4 times [2023-01-10 14:35:59,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 14:35:59,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744242626] [2023-01-10 14:35:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 14:35:59,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 14:35:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 14:36:00,969 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 211 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-01-10 14:36:00,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 14:36:00,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744242626] [2023-01-10 14:36:00,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744242626] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 14:36:00,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598051696] [2023-01-10 14:36:00,969 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 14:36:00,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:36:00,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 14:36:00,973 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-10 14:36:00,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-10 14:36:01,301 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 14:36:01,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 14:36:01,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 49 conjunts are in the unsatisfiable core [2023-01-10 14:36:01,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 14:36:02,388 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 211 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-01-10 14:36:02,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 14:36:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 211 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-01-10 14:36:07,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598051696] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 14:36:07,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 14:36:07,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 26, 28] total 65 [2023-01-10 14:36:07,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55319849] [2023-01-10 14:36:07,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 14:36:07,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2023-01-10 14:36:07,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 14:36:07,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2023-01-10 14:36:07,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=400, Invalid=3760, Unknown=0, NotChecked=0, Total=4160 [2023-01-10 14:36:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:36:07,659 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 14:36:07,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 6.4) internal successors, (416), 65 states have internal predecessors, (416), 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) [2023-01-10 14:36:07,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 14:36:07,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 14:36:07,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-01-10 14:36:07,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-01-10 14:36:07,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2023-01-10 14:36:07,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2023-01-10 14:36:07,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2023-01-10 14:36:07,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-01-10 14:36:07,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2023-01-10 14:37:27,201 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 14:37:27,201 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 14:37:27,201 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 14:37:27,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-10 14:37:28,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 14:37:28,158 WARN L619 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 143 known predicates. [2023-01-10 14:37:28,160 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-01-10 14:37:28,170 INFO L445 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1] [2023-01-10 14:37:28,171 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/3) [2023-01-10 14:37:28,172 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-10 14:37:28,172 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-10 14:37:28,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:37:28 BasicIcfg [2023-01-10 14:37:28,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-10 14:37:28,175 INFO L158 Benchmark]: Toolchain (without parser) took 829998.55ms. Allocated memory was 305.1MB in the beginning and 1.9GB in the end (delta: 1.6GB). Free memory was 259.0MB in the beginning and 1.7GB in the end (delta: -1.4GB). Peak memory consumption was 178.4MB. Max. memory is 8.0GB. [2023-01-10 14:37:28,175 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 192.9MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-01-10 14:37:28,175 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.14ms. Allocated memory is still 305.1MB. Free memory was 258.7MB in the beginning and 246.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-01-10 14:37:28,175 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.00ms. Allocated memory is still 305.1MB. Free memory was 246.8MB in the beginning and 245.0MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-01-10 14:37:28,176 INFO L158 Benchmark]: Boogie Preprocessor took 38.90ms. Allocated memory is still 305.1MB. Free memory was 245.0MB in the beginning and 243.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-01-10 14:37:28,176 INFO L158 Benchmark]: RCFGBuilder took 488.16ms. Allocated memory is still 305.1MB. Free memory was 243.3MB in the beginning and 226.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-01-10 14:37:28,176 INFO L158 Benchmark]: TraceAbstraction took 829113.44ms. Allocated memory was 305.1MB in the beginning and 1.9GB in the end (delta: 1.6GB). Free memory was 226.1MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 145.9MB. Max. memory is 8.0GB. [2023-01-10 14:37:28,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 192.9MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 286.14ms. Allocated memory is still 305.1MB. Free memory was 258.7MB in the beginning and 246.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.00ms. Allocated memory is still 305.1MB. Free memory was 246.8MB in the beginning and 245.0MB in the end (delta: 1.8MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 38.90ms. Allocated memory is still 305.1MB. Free memory was 245.0MB in the beginning and 243.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 488.16ms. Allocated memory is still 305.1MB. Free memory was 243.3MB in the beginning and 226.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 829113.44ms. Allocated memory was 305.1MB in the beginning and 1.9GB in the end (delta: 1.6GB). Free memory was 226.1MB in the beginning and 1.7GB in the end (delta: -1.5GB). Peak memory consumption was 145.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 10554, independent: 8881, independent conditional: 8881, independent unconditional: 0, dependent: 1673, dependent conditional: 1673, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8881, independent: 8881, independent conditional: 8881, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8881, independent: 8881, independent conditional: 8881, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8881, independent: 8881, independent conditional: 0, independent unconditional: 8881, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8881, independent: 8881, independent conditional: 0, independent unconditional: 8881, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8881, independent: 8881, independent conditional: 0, independent unconditional: 8881, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 632, independent: 632, independent conditional: 0, independent unconditional: 632, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 632, independent: 632, independent conditional: 0, independent unconditional: 632, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 8881, independent: 8249, independent conditional: 0, independent unconditional: 8249, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 632, unknown conditional: 0, unknown unconditional: 632] , Statistics on independence cache: Total cache size (in pairs): 632, Positive cache size: 632, Positive conditional cache size: 0, Positive unconditional cache size: 632, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 1673 - StatisticsResult: Traversal Statistics Data States: 634, Transitions: 711, Traversal time: 191662192.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 12 - StatisticsResult: Traversal Statistics Data States: 634, Transitions: 716, Traversal time: 64839421.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 12 - StatisticsResult: Traversal Statistics Data States: 646, Transitions: 729, Traversal time: 85195261.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 12 - StatisticsResult: Traversal Statistics Data States: 653, Transitions: 736, Traversal time: 117218118.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 12 - StatisticsResult: Traversal Statistics Data States: 589, Transitions: 663, Traversal time: 352665805.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 12 - StatisticsResult: Traversal Statistics Data States: 1054, Transitions: 1206, Traversal time: 2343640191.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 26 - StatisticsResult: Traversal Statistics Data States: 951, Transitions: 1083, Traversal time: 5796959766.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 23 - StatisticsResult: Traversal Statistics Data States: 1402, Transitions: 1588, Traversal time: 390388305118.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 46 - StatisticsResult: Traversal Statistics Data States: 1280, Transitions: 1446, Traversal time: 10825797396.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 40 - StatisticsResult: Traversal Statistics Data States: 741, Transitions: 830, Traversal time: 80276205491.0ns - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 143 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 5 procedures, 213 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 828900280727.0ns, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 650050979847.0ns, FeasibilityCheckTime: 177526514698.0ns, RefinementTime: 43919061.0ns, AutomataDifference: 0.0ns, DeadEndRemovalTime: 0.0ns, HoareAnnotationTime: 0.0ns, InitialAbstractionConstructionTime: 21206456.0ns, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9404 SdHoareTripleChecker+Valid, 123053295467.0ns IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9404 mSDsluCounter, 59973 SdHoareTripleChecker+Invalid, 121134535423.0ns Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57597 mSDsCounter, 288 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18838 IncrementalHoareTripleChecker+Invalid, 19126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 288 mSolverCounterUnsat, 2376 mSDtfsCounter, 18838 mSolverCounterSat, 184844730.0ns SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: No data available, 0.0ns BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 449, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ns DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 154780745.0ns SsaConstructionTime, 1903853297.0ns SatisfiabilityAnalysisTime, 174904076407.0ns InterpolantComputationTime, 2416 NumberOfCodeBlocks, 2416 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 3455 ConstructedInterpolants, 38 QuantifiedInterpolants, 86463 SizeOfPredicates, 164 NumberOfNonLiveVariables, 2074 ConjunctsInSsa, 301 ConjunctsInUnsatCore, 21 InterpolantComputations, 3 PerfectInterpolantSequences, 280/1834 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown