./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/stack_longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread/stack_longer-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 21:24:52,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 21:24:52,855 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 21:24:52,861 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 21:24:52,864 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 21:24:52,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 21:24:52,902 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 21:24:52,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 21:24:52,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 21:24:52,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 21:24:52,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 21:24:52,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 21:24:52,904 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 21:24:52,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 21:24:52,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 21:24:52,907 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 21:24:52,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 21:24:52,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 21:24:52,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 21:24:52,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 21:24:52,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 21:24:52,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 21:24:52,911 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 21:24:52,911 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 21:24:52,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 21:24:52,913 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 21:24:52,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 21:24:52,914 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 21:24:52,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 21:24:52,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 21:24:52,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 21:24:52,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 21:24:52,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 21:24:52,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 21:24:52,917 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 21:24:52,918 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 21:24:52,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 21:24:52,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 21:24:52,919 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 21:24:52,919 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 21:24:52,919 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 21:24:52,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4351dece6a672e511bbcb86915e62fc8a7361763ad7ab88f2e640b2d00ea50a7 [2024-09-08 21:24:53,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 21:24:53,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 21:24:53,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 21:24:53,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 21:24:53,196 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 21:24:53,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2024-09-08 21:24:54,707 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 21:24:54,972 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 21:24:54,973 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-1.i [2024-09-08 21:24:54,994 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2bf1c77cf/f3b98056cca648cea23cc1ff3f063d69/FLAGa3ea96857 [2024-09-08 21:24:55,007 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2bf1c77cf/f3b98056cca648cea23cc1ff3f063d69 [2024-09-08 21:24:55,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 21:24:55,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-08 21:24:55,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 21:24:55,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 21:24:55,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 21:24:55,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a134b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55, skipping insertion in model container [2024-09-08 21:24:55,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,087 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 21:24:55,535 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-1.i[41527,41540] [2024-09-08 21:24:55,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 21:24:55,590 INFO L200 MainTranslator]: Completed pre-run [2024-09-08 21:24:55,627 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-1.i[41527,41540] [2024-09-08 21:24:55,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 21:24:55,692 INFO L204 MainTranslator]: Completed translation [2024-09-08 21:24:55,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55 WrapperNode [2024-09-08 21:24:55,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 21:24:55,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 21:24:55,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 21:24:55,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 21:24:55,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,719 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,749 INFO L138 Inliner]: procedures = 277, calls = 31, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 153 [2024-09-08 21:24:55,749 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 21:24:55,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 21:24:55,750 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 21:24:55,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 21:24:55,758 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,762 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,778 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 21:24:55,783 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 21:24:55,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 21:24:55,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 21:24:55,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (1/1) ... [2024-09-08 21:24:55,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 21:24:55,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:24:55,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-08 21:24:55,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-08 21:24:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-09-08 21:24:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-09-08 21:24:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-09-08 21:24:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-09-08 21:24:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-09-08 21:24:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 21:24:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 21:24:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-09-08 21:24:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 21:24:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 21:24:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 21:24:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 21:24:55,863 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 21:24:55,998 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 21:24:56,000 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 21:24:56,228 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 21:24:56,228 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 21:24:56,436 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 21:24:56,437 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-08 21:24:56,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:24:56 BoogieIcfgContainer [2024-09-08 21:24:56,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 21:24:56,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 21:24:56,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 21:24:56,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 21:24:56,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 09:24:55" (1/3) ... [2024-09-08 21:24:56,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f53ef7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:24:56, skipping insertion in model container [2024-09-08 21:24:56,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 09:24:55" (2/3) ... [2024-09-08 21:24:56,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f53ef7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 09:24:56, skipping insertion in model container [2024-09-08 21:24:56,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 09:24:56" (3/3) ... [2024-09-08 21:24:56,451 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2024-09-08 21:24:56,471 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 21:24:56,472 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-09-08 21:24:56,474 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 21:24:56,541 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-08 21:24:56,592 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 21:24:56,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 21:24:56,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:24:56,594 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 21:24:56,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-08 21:24:56,623 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 21:24:56,634 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork1 ======== [2024-09-08 21:24:56,640 INFO L336 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@536a5db4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 21:24:56,640 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-08 21:24:56,758 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:24:56,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:24:56,764 INFO L85 PathProgramCache]: Analyzing trace with hash 795695165, now seen corresponding path program 1 times [2024-09-08 21:24:56,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:24:56,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2963772] [2024-09-08 21:24:56,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:24:56,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:24:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:24:57,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 21:24:57,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:24:57,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2963772] [2024-09-08 21:24:57,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2963772] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 21:24:57,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 21:24:57,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 21:24:57,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662646523] [2024-09-08 21:24:57,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 21:24:57,299 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 21:24:57,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:24:57,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 21:24:57,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 21:24:57,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:24:57,320 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:24:57,320 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:24:57,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:24:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:24:57,450 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 21:24:57,450 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:24:57,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:24:57,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1088855676, now seen corresponding path program 1 times [2024-09-08 21:24:57,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:24:57,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966261638] [2024-09-08 21:24:57,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:24:57,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:24:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:24:57,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 21:24:57,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:24:57,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966261638] [2024-09-08 21:24:57,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966261638] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 21:24:57,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 21:24:57,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 21:24:57,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215523508] [2024-09-08 21:24:57,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 21:24:57,636 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 21:24:57,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:24:57,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 21:24:57,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 21:24:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:24:57,638 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:24:57,638 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:24:57,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:24:57,638 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:24:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:24:57,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:24:57,710 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-08 21:24:57,711 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:24:57,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:24:57,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1570087491, now seen corresponding path program 1 times [2024-09-08 21:24:57,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:24:57,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860278255] [2024-09-08 21:24:57,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:24:57,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:24:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:24:57,958 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 21:24:57,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:24:57,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860278255] [2024-09-08 21:24:57,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860278255] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 21:24:57,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 21:24:57,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 21:24:57,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789317738] [2024-09-08 21:24:57,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 21:24:57,960 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 21:24:57,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:24:57,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 21:24:57,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 21:24:57,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:24:57,962 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:24:57,962 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:24:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:24:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:24:57,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:24:58,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:24:58,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:24:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:24:58,026 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-08 21:24:58,026 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:24:58,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:24:58,027 INFO L85 PathProgramCache]: Analyzing trace with hash 220202287, now seen corresponding path program 1 times [2024-09-08 21:24:58,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:24:58,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380969782] [2024-09-08 21:24:58,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:24:58,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:24:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:24:58,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 21:24:58,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:24:58,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380969782] [2024-09-08 21:24:58,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380969782] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:24:58,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759074039] [2024-09-08 21:24:58,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:24:58,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:24:58,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:24:58,282 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:24:58,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 21:24:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:24:58,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-08 21:24:58,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:24:58,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:24:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 21:24:58,773 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:24:58,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 21:24:58,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759074039] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:24:58,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:24:58,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-09-08 21:24:58,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402715694] [2024-09-08 21:24:58,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:24:58,849 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 21:24:58,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:24:58,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 21:24:58,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-09-08 21:24:58,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:24:58,850 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:24:58,851 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:24:58,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:24:58,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:24:58,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:24:58,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:24:59,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:24:59,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:24:59,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:24:59,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 21:24:59,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-08 21:24:59,263 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:24:59,264 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:24:59,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:24:59,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1683994188, now seen corresponding path program 2 times [2024-09-08 21:24:59,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:24:59,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290908107] [2024-09-08 21:24:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:24:59,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:24:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:25:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 1 proven. 67 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-09-08 21:25:00,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:25:00,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290908107] [2024-09-08 21:25:00,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290908107] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:25:00,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978934542] [2024-09-08 21:25:00,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 21:25:00,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:25:00,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:25:00,213 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:25:00,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 21:25:00,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 21:25:00,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 21:25:00,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 21:25:00,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:25:00,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:00,444 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 43 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-09-08 21:25:00,444 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:25:00,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2024-09-08 21:25:00,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2024-09-08 21:25:00,984 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 43 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-09-08 21:25:00,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978934542] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:25:00,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:25:00,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 5] total 15 [2024-09-08 21:25:00,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606099607] [2024-09-08 21:25:00,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:25:00,987 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-08 21:25:00,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:25:00,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-08 21:25:00,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-09-08 21:25:00,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:25:00,990 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:25:00,991 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.75) internal successors, (108), 15 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:25:00,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:25:00,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:00,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:00,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 21:25:00,991 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:25:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:25:01,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:01,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:01,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 21:25:01,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 21:25:01,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-08 21:25:01,390 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:25:01,391 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:25:01,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:25:01,391 INFO L85 PathProgramCache]: Analyzing trace with hash -129338433, now seen corresponding path program 1 times [2024-09-08 21:25:01,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:25:01,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042447700] [2024-09-08 21:25:01,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:25:01,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:25:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:25:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 21:25:02,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:25:02,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042447700] [2024-09-08 21:25:02,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042447700] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:25:02,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148271525] [2024-09-08 21:25:02,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:25:02,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:25:02,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:25:02,059 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:25:02,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 21:25:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:25:02,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-08 21:25:02,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:25:02,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:02,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 28 treesize of output 15 [2024-09-08 21:25:02,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:02,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:02,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:02,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 3 proven. 122 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-08 21:25:02,566 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:25:03,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2024-09-08 21:25:03,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 5 [2024-09-08 21:25:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 21:25:03,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148271525] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:25:03,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:25:03,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 23 [2024-09-08 21:25:03,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105329061] [2024-09-08 21:25:03,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:25:03,578 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-09-08 21:25:03,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:25:03,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-09-08 21:25:03,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=340, Unknown=0, NotChecked=0, Total=552 [2024-09-08 21:25:03,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:25:03,583 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:25:03,584 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.708333333333333) internal successors, (161), 23 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:25:03,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:25:03,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:03,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:03,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 21:25:03,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 21:25:03,584 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:25:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:25:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 21:25:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 21:25:04,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 21:25:04,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-08 21:25:04,342 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:25:04,343 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:25:04,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:25:04,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1886550984, now seen corresponding path program 2 times [2024-09-08 21:25:04,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:25:04,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710649739] [2024-09-08 21:25:04,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:25:04,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:25:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:25:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 21:25:06,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:25:06,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710649739] [2024-09-08 21:25:06,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710649739] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:25:06,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828176700] [2024-09-08 21:25:06,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 21:25:06,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:25:06,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:25:06,847 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:25:06,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 21:25:07,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 21:25:07,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 21:25:07,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-09-08 21:25:07,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:25:07,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 28 treesize of output 15 [2024-09-08 21:25:07,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:25:07,806 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 3 proven. 592 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 21:25:07,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:25:08,420 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 1 proven. 591 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 21:25:08,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828176700] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:25:08,422 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:25:08,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 23, 22] total 61 [2024-09-08 21:25:08,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042598012] [2024-09-08 21:25:08,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:25:08,423 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-09-08 21:25:08,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:25:08,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-09-08 21:25:08,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1125, Invalid=2657, Unknown=0, NotChecked=0, Total=3782 [2024-09-08 21:25:08,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:25:08,427 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:25:08,428 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 4.967741935483871) internal successors, (308), 61 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:25:08,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:25:08,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:08,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:08,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 21:25:08,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 21:25:08,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 21:25:08,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:25:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:25:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:25:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 21:25:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 21:25:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 21:25:10,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-09-08 21:25:10,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-08 21:25:10,392 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-08 21:25:10,392 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:25:10,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:25:10,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1583367585, now seen corresponding path program 3 times [2024-09-08 21:25:10,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:25:10,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733158658] [2024-09-08 21:25:10,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:25:10,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:25:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:25:17,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 0 proven. 2758 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 21:25:17,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:25:17,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733158658] [2024-09-08 21:25:17,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733158658] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:25:17,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531428188] [2024-09-08 21:25:17,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 21:25:17,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:25:17,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:25:17,133 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:25:17,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 21:26:08,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2024-09-08 21:26:08,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 21:26:08,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-09-08 21:26:08,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:26:08,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:08,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 28 treesize of output 15 [2024-09-08 21:26:08,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:08,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:08,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:08,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:08,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:08,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:08,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:09,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:10,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 3 proven. 2751 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-08 21:26:10,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:26:11,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 0 proven. 2751 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-09-08 21:26:11,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531428188] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:26:11,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:26:11,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 35, 34] total 111 [2024-09-08 21:26:11,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191993077] [2024-09-08 21:26:11,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:26:11,453 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 112 states [2024-09-08 21:26:11,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:26:11,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2024-09-08 21:26:11,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3646, Invalid=8786, Unknown=0, NotChecked=0, Total=12432 [2024-09-08 21:26:11,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:26:11,461 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:26:11,462 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 112 states, 112 states have (on average 5.535714285714286) internal successors, (620), 111 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:26:11,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:26:11,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:26:11,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:26:11,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 21:26:11,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 21:26:11,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 21:26:11,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2024-09-08 21:26:11,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:26:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:26:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:26:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:26:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 21:26:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 21:26:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 21:26:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-09-08 21:26:17,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-09-08 21:26:17,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-08 21:26:18,121 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:26:18,121 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:26:18,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:26:18,122 INFO L85 PathProgramCache]: Analyzing trace with hash -957669752, now seen corresponding path program 4 times [2024-09-08 21:26:18,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:26:18,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170612328] [2024-09-08 21:26:18,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:26:18,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:26:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:26:34,243 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 11400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 21:26:34,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:26:34,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170612328] [2024-09-08 21:26:34,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170612328] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:26:34,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492632407] [2024-09-08 21:26:34,244 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 21:26:34,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:26:34,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:26:34,245 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:26:34,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-08 21:26:34,954 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 21:26:34,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 21:26:34,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 1795 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-09-08 21:26:34,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 21:26:35,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 28 treesize of output 15 [2024-09-08 21:26:35,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:35,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:36,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-09-08 21:26:37,723 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 3 proven. 11394 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-09-08 21:26:37,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 21:26:41,562 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 1 proven. 11393 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-09-08 21:26:41,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492632407] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 21:26:41,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 21:26:41,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 62, 61] total 199 [2024-09-08 21:26:41,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057581271] [2024-09-08 21:26:41,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 21:26:41,564 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 200 states [2024-09-08 21:26:41,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 21:26:41,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 200 interpolants. [2024-09-08 21:26:41,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12180, Invalid=27620, Unknown=0, NotChecked=0, Total=39800 [2024-09-08 21:26:41,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:26:41,583 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 21:26:41,584 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 200 states, 200 states have (on average 6.16) internal successors, (1232), 199 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 21:26:41,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:26:41,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:26:41,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:26:41,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2024-09-08 21:26:41,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 21:26:41,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2024-09-08 21:26:41,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2024-09-08 21:26:41,585 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2024-09-08 21:26:41,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 21:27:14,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 21:27:14,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:27:14,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 21:27:14,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-09-08 21:27:14,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 21:27:14,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-08 21:27:14,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-09-08 21:27:14,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-09-08 21:27:14,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2024-09-08 21:27:14,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-08 21:27:14,566 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-09-08 21:27:14,566 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-08 21:27:14,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 21:27:14,567 INFO L85 PathProgramCache]: Analyzing trace with hash 842026536, now seen corresponding path program 5 times [2024-09-08 21:27:14,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 21:27:14,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203826820] [2024-09-08 21:27:14,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 21:27:14,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 21:27:17,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 21:29:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 46345 backedges. 0 proven. 46345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 21:29:09,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 21:29:09,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203826820] [2024-09-08 21:29:09,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203826820] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 21:29:09,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582183839] [2024-09-08 21:29:09,312 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 21:29:09,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 21:29:09,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 21:29:09,313 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 21:29:09,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Killed by 15