/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/array-patterns/array19_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-18 20:10:19,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-18 20:10:19,113 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-18 20:10:19,118 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-18 20:10:19,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-18 20:10:19,138 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-18 20:10:19,139 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-18 20:10:19,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-18 20:10:19,139 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-18 20:10:19,142 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-18 20:10:19,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-18 20:10:19,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-18 20:10:19,143 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-18 20:10:19,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-18 20:10:19,144 INFO L153 SettingsManager]: * Use SBE=true [2023-12-18 20:10:19,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-18 20:10:19,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-18 20:10:19,145 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-18 20:10:19,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-18 20:10:19,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-18 20:10:19,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-18 20:10:19,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-18 20:10:19,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-18 20:10:19,146 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-18 20:10:19,146 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-18 20:10:19,146 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-18 20:10:19,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-18 20:10:19,146 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-18 20:10:19,147 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-18 20:10:19,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-18 20:10:19,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-18 20:10:19,148 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-18 20:10:19,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 20:10:19,148 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-18 20:10:19,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-18 20:10:19,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-18 20:10:19,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-18 20:10:19,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-18 20:10:19,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-18 20:10:19,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-18 20:10:19,149 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-18 20:10:19,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-18 20:10:19,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-18 20:10:19,149 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-18 20:10:19,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-18 20:10:19,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-18 20:10:19,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-18 20:10:19,342 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-18 20:10:19,342 INFO L274 PluginConnector]: CDTParser initialized [2023-12-18 20:10:19,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array19_pattern.c [2023-12-18 20:10:20,327 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-18 20:10:20,465 INFO L384 CDTParser]: Found 1 translation units. [2023-12-18 20:10:20,465 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array19_pattern.c [2023-12-18 20:10:20,470 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd7424c3e/7de1a7ad9b874abe8930c09fee3a71c1/FLAGba51b981b [2023-12-18 20:10:20,478 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd7424c3e/7de1a7ad9b874abe8930c09fee3a71c1 [2023-12-18 20:10:20,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-18 20:10:20,481 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-18 20:10:20,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-18 20:10:20,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-18 20:10:20,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-18 20:10:20,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13792351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20, skipping insertion in model container [2023-12-18 20:10:20,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,499 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-18 20:10:20,590 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array19_pattern.c[1442,1455] [2023-12-18 20:10:20,603 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 20:10:20,609 INFO L202 MainTranslator]: Completed pre-run [2023-12-18 20:10:20,616 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array19_pattern.c[1442,1455] [2023-12-18 20:10:20,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 20:10:20,632 INFO L206 MainTranslator]: Completed translation [2023-12-18 20:10:20,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20 WrapperNode [2023-12-18 20:10:20,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-18 20:10:20,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-18 20:10:20,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-18 20:10:20,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-18 20:10:20,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,643 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,657 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 104 [2023-12-18 20:10:20,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-18 20:10:20,658 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-18 20:10:20,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-18 20:10:20,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-18 20:10:20,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,666 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,682 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2023-12-18 20:10:20,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-18 20:10:20,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-18 20:10:20,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-18 20:10:20,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-18 20:10:20,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (1/1) ... [2023-12-18 20:10:20,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 20:10:20,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:10:20,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-18 20:10:20,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-18 20:10:20,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-18 20:10:20,812 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-18 20:10:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-18 20:10:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-18 20:10:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-18 20:10:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-18 20:10:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-18 20:10:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-18 20:10:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-18 20:10:20,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-18 20:10:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-18 20:10:20,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-18 20:10:20,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-18 20:10:20,894 INFO L241 CfgBuilder]: Building ICFG [2023-12-18 20:10:20,897 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-18 20:10:21,042 INFO L282 CfgBuilder]: Performing block encoding [2023-12-18 20:10:21,075 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-18 20:10:21,083 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-18 20:10:21,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:10:21 BoogieIcfgContainer [2023-12-18 20:10:21,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-18 20:10:21,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-18 20:10:21,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-18 20:10:21,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-18 20:10:21,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 08:10:20" (1/3) ... [2023-12-18 20:10:21,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c37c327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:10:21, skipping insertion in model container [2023-12-18 20:10:21,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 08:10:20" (2/3) ... [2023-12-18 20:10:21,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c37c327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 08:10:21, skipping insertion in model container [2023-12-18 20:10:21,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 08:10:21" (3/3) ... [2023-12-18 20:10:21,104 INFO L112 eAbstractionObserver]: Analyzing ICFG array19_pattern.c [2023-12-18 20:10:21,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-18 20:10:21,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-18 20:10:21,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-18 20:10:21,164 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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;@567999fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-18 20:10:21,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-18 20:10:21,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-18 20:10:21,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-18 20:10:21,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:10:21,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:10:21,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:10:21,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:10:21,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1876061686, now seen corresponding path program 1 times [2023-12-18 20:10:21,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:10:21,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630464811] [2023-12-18 20:10:21,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:10:21,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:10:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:10:21,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:10:21,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630464811] [2023-12-18 20:10:21,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-18 20:10:21,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43129610] [2023-12-18 20:10:21,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:10:21,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:10:21,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:10:21,268 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:10:21,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-18 20:10:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:10:21,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-18 20:10:21,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:10:21,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 20:10:21,366 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:10:21,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43129610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:10:21,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:10:21,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-18 20:10:21,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111060553] [2023-12-18 20:10:21,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:10:21,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-18 20:10:21,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:10:21,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-18 20:10:21,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-18 20:10:21,388 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-18 20:10:21,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:10:21,412 INFO L93 Difference]: Finished difference Result 54 states and 88 transitions. [2023-12-18 20:10:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-18 20:10:21,415 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-12-18 20:10:21,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:10:21,420 INFO L225 Difference]: With dead ends: 54 [2023-12-18 20:10:21,420 INFO L226 Difference]: Without dead ends: 26 [2023-12-18 20:10:21,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-18 20:10:21,427 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 20:10:21,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 20:10:21,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-12-18 20:10:21,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-12-18 20:10:21,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-18 20:10:21,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2023-12-18 20:10:21,466 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 14 [2023-12-18 20:10:21,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:10:21,467 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2023-12-18 20:10:21,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-18 20:10:21,467 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2023-12-18 20:10:21,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-18 20:10:21,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:10:21,469 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:10:21,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-18 20:10:21,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-18 20:10:21,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:10:21,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:10:21,676 INFO L85 PathProgramCache]: Analyzing trace with hash -364244922, now seen corresponding path program 1 times [2023-12-18 20:10:21,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:10:21,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902875067] [2023-12-18 20:10:21,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:10:21,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:10:21,697 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:10:21,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [493116370] [2023-12-18 20:10:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:10:21,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:10:21,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:10:21,712 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:10:21,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-18 20:10:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:10:21,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-18 20:10:21,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:10:21,828 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-18 20:10:21,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:10:21,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:10:21,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902875067] [2023-12-18 20:10:21,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:10:21,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493116370] [2023-12-18 20:10:21,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493116370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:10:21,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:10:21,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-18 20:10:21,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007668097] [2023-12-18 20:10:21,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:10:21,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-18 20:10:21,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:10:21,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-18 20:10:21,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:10:21,831 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-18 20:10:21,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:10:21,853 INFO L93 Difference]: Finished difference Result 33 states and 42 transitions. [2023-12-18 20:10:21,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-18 20:10:21,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2023-12-18 20:10:21,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:10:21,860 INFO L225 Difference]: With dead ends: 33 [2023-12-18 20:10:21,860 INFO L226 Difference]: Without dead ends: 29 [2023-12-18 20:10:21,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-18 20:10:21,861 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 11 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 20:10:21,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 72 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 20:10:21,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-12-18 20:10:21,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-12-18 20:10:21,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 24 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-18 20:10:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2023-12-18 20:10:21,866 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 29 [2023-12-18 20:10:21,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:10:21,867 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2023-12-18 20:10:21,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-18 20:10:21,867 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2023-12-18 20:10:21,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-18 20:10:21,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:10:21,868 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:10:21,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-18 20:10:22,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-18 20:10:22,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:10:22,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:10:22,073 INFO L85 PathProgramCache]: Analyzing trace with hash -315688640, now seen corresponding path program 1 times [2023-12-18 20:10:22,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:10:22,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880133865] [2023-12-18 20:10:22,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:10:22,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:10:22,092 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:10:22,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739559057] [2023-12-18 20:10:22,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:10:22,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:10:22,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:10:22,098 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:10:22,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-18 20:10:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:10:22,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-18 20:10:22,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:10:22,221 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-18 20:10:22,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:10:22,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:10:22,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880133865] [2023-12-18 20:10:22,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:10:22,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739559057] [2023-12-18 20:10:22,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739559057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:10:22,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:10:22,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-18 20:10:22,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724235572] [2023-12-18 20:10:22,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:10:22,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-18 20:10:22,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:10:22,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-18 20:10:22,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-18 20:10:22,224 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-18 20:10:22,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:10:22,319 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2023-12-18 20:10:22,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 20:10:22,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2023-12-18 20:10:22,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:10:22,321 INFO L225 Difference]: With dead ends: 61 [2023-12-18 20:10:22,321 INFO L226 Difference]: Without dead ends: 37 [2023-12-18 20:10:22,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-18 20:10:22,322 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 19 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:10:22,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 71 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:10:22,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-12-18 20:10:22,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2023-12-18 20:10:22,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-18 20:10:22,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2023-12-18 20:10:22,326 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 33 [2023-12-18 20:10:22,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:10:22,326 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2023-12-18 20:10:22,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-18 20:10:22,326 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2023-12-18 20:10:22,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-18 20:10:22,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:10:22,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:10:22,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-18 20:10:22,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:10:22,532 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:10:22,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:10:22,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1044441326, now seen corresponding path program 1 times [2023-12-18 20:10:22,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:10:22,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710835137] [2023-12-18 20:10:22,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:10:22,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:10:22,544 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:10:22,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149050217] [2023-12-18 20:10:22,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:10:22,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:10:22,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:10:22,558 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:10:22,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-18 20:10:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:10:22,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-18 20:10:22,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:10:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-18 20:10:22,620 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:10:22,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:10:22,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710835137] [2023-12-18 20:10:22,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:10:22,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149050217] [2023-12-18 20:10:22,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149050217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:10:22,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:10:22,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-18 20:10:22,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512221135] [2023-12-18 20:10:22,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:10:22,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-18 20:10:22,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:10:22,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-18 20:10:22,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-18 20:10:22,622 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-18 20:10:22,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:10:22,653 INFO L93 Difference]: Finished difference Result 57 states and 76 transitions. [2023-12-18 20:10:22,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-18 20:10:22,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-12-18 20:10:22,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:10:22,654 INFO L225 Difference]: With dead ends: 57 [2023-12-18 20:10:22,654 INFO L226 Difference]: Without dead ends: 31 [2023-12-18 20:10:22,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-18 20:10:22,655 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 22 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 20:10:22,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 45 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 20:10:22,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-12-18 20:10:22,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2023-12-18 20:10:22,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-18 20:10:22,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2023-12-18 20:10:22,659 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 36 [2023-12-18 20:10:22,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:10:22,659 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2023-12-18 20:10:22,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-18 20:10:22,660 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2023-12-18 20:10:22,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-18 20:10:22,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:10:22,660 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:10:22,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-18 20:10:22,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:10:22,865 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:10:22,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:10:22,866 INFO L85 PathProgramCache]: Analyzing trace with hash -313799821, now seen corresponding path program 1 times [2023-12-18 20:10:22,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:10:22,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098464513] [2023-12-18 20:10:22,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:10:22,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:10:22,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:10:22,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [486458937] [2023-12-18 20:10:22,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:10:22,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:10:22,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:10:22,889 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:10:22,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-18 20:10:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:10:22,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-18 20:10:22,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:10:23,083 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 11 treesize of output 7 [2023-12-18 20:10:23,388 INFO L349 Elim1Store]: treesize reduction 33, result has 31.3 percent of original size [2023-12-18 20:10:23,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 22 [2023-12-18 20:10:23,455 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 11 treesize of output 7 [2023-12-18 20:10:23,553 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-18 20:10:23,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:10:58,146 WARN L293 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:11:06,472 WARN L293 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:11:16,937 WARN L293 SmtUtils]: Spent 9.73s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:11:27,716 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:11:52,235 WARN L293 SmtUtils]: Spent 11.87s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:12:04,600 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:15:23,850 WARN L293 SmtUtils]: Spent 2.73m on a formula simplification. DAG size of input: 259 DAG size of output: 258 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-18 20:15:23,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:15:23,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098464513] [2023-12-18 20:15:23,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:15:23,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486458937] [2023-12-18 20:15:23,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486458937] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 20:15:23,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-18 20:15:23,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2023-12-18 20:15:23,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311399027] [2023-12-18 20:15:23,862 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-18 20:15:23,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-18 20:15:23,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:15:23,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-18 20:15:23,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=836, Unknown=9, NotChecked=0, Total=992 [2023-12-18 20:15:23,865 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 19 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-18 20:15:27,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:15:27,017 INFO L93 Difference]: Finished difference Result 99 states and 128 transitions. [2023-12-18 20:15:27,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-18 20:15:27,017 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 19 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2023-12-18 20:15:27,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:15:27,019 INFO L225 Difference]: With dead ends: 99 [2023-12-18 20:15:27,019 INFO L226 Difference]: Without dead ends: 75 [2023-12-18 20:15:27,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 217.2s TimeCoverageRelationStatistics Valid=323, Invalid=1830, Unknown=9, NotChecked=0, Total=2162 [2023-12-18 20:15:27,020 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 74 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-18 20:15:27,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 142 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-18 20:15:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-18 20:15:27,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 57. [2023-12-18 20:15:27,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 48 states have internal predecessors, (61), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-18 20:15:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2023-12-18 20:15:27,028 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 37 [2023-12-18 20:15:27,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:15:27,028 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2023-12-18 20:15:27,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 19 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-18 20:15:27,028 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2023-12-18 20:15:27,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-18 20:15:27,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:15:27,029 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:15:27,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-18 20:15:27,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:15:27,234 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:15:27,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:15:27,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1324917071, now seen corresponding path program 1 times [2023-12-18 20:15:27,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:15:27,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683577534] [2023-12-18 20:15:27,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:15:27,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:15:27,244 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:15:27,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697913841] [2023-12-18 20:15:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:15:27,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:15:27,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:15:27,245 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:15:27,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-18 20:15:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:15:27,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-18 20:15:27,315 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:15:27,321 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-18 20:15:27,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-18 20:15:27,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:15:27,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683577534] [2023-12-18 20:15:27,322 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:15:27,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697913841] [2023-12-18 20:15:27,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697913841] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 20:15:27,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 20:15:27,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-18 20:15:27,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118510948] [2023-12-18 20:15:27,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 20:15:27,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 20:15:27,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:15:27,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 20:15:27,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 20:15:27,323 INFO L87 Difference]: Start difference. First operand 57 states and 71 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-18 20:15:27,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:15:27,374 INFO L93 Difference]: Finished difference Result 94 states and 116 transitions. [2023-12-18 20:15:27,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 20:15:27,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2023-12-18 20:15:27,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:15:27,376 INFO L225 Difference]: With dead ends: 94 [2023-12-18 20:15:27,376 INFO L226 Difference]: Without dead ends: 72 [2023-12-18 20:15:27,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 20:15:27,376 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 13 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 20:15:27,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 48 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 20:15:27,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-18 20:15:27,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 59. [2023-12-18 20:15:27,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 50 states have (on average 1.26) internal successors, (63), 50 states have internal predecessors, (63), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-18 20:15:27,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2023-12-18 20:15:27,384 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 37 [2023-12-18 20:15:27,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:15:27,384 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2023-12-18 20:15:27,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-18 20:15:27,384 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2023-12-18 20:15:27,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-18 20:15:27,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:15:27,385 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:15:27,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-18 20:15:27,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:15:27,586 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:15:27,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:15:27,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1066751633, now seen corresponding path program 1 times [2023-12-18 20:15:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:15:27,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108330252] [2023-12-18 20:15:27,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:15:27,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:15:27,593 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:15:27,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1749997199] [2023-12-18 20:15:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:15:27,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:15:27,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:15:27,594 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:15:27,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-18 20:15:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 20:15:27,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-18 20:15:27,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:15:27,758 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-18 20:15:27,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:15:27,945 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-18 20:15:27,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:15:27,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108330252] [2023-12-18 20:15:27,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:15:27,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749997199] [2023-12-18 20:15:27,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749997199] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:15:27,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:15:27,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 18 [2023-12-18 20:15:27,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535138782] [2023-12-18 20:15:27,949 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:15:27,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-18 20:15:27,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:15:27,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-18 20:15:27,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-12-18 20:15:27,957 INFO L87 Difference]: Start difference. First operand 59 states and 73 transitions. Second operand has 18 states, 16 states have (on average 2.375) internal successors, (38), 13 states have internal predecessors, (38), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-18 20:15:28,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:15:28,298 INFO L93 Difference]: Finished difference Result 151 states and 183 transitions. [2023-12-18 20:15:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-18 20:15:28,298 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.375) internal successors, (38), 13 states have internal predecessors, (38), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2023-12-18 20:15:28,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:15:28,300 INFO L225 Difference]: With dead ends: 151 [2023-12-18 20:15:28,300 INFO L226 Difference]: Without dead ends: 127 [2023-12-18 20:15:28,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=187, Invalid=743, Unknown=0, NotChecked=0, Total=930 [2023-12-18 20:15:28,301 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 92 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-18 20:15:28,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 138 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-18 20:15:28,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-12-18 20:15:28,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 86. [2023-12-18 20:15:28,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 71 states have (on average 1.2112676056338028) internal successors, (86), 72 states have internal predecessors, (86), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-18 20:15:28,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 102 transitions. [2023-12-18 20:15:28,326 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 102 transitions. Word has length 37 [2023-12-18 20:15:28,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:15:28,327 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 102 transitions. [2023-12-18 20:15:28,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.375) internal successors, (38), 13 states have internal predecessors, (38), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-18 20:15:28,327 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 102 transitions. [2023-12-18 20:15:28,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-18 20:15:28,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:15:28,331 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:15:28,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-18 20:15:28,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:15:28,532 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:15:28,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:15:28,532 INFO L85 PathProgramCache]: Analyzing trace with hash -957259103, now seen corresponding path program 2 times [2023-12-18 20:15:28,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:15:28,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793055614] [2023-12-18 20:15:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:15:28,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:15:28,542 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:15:28,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014544338] [2023-12-18 20:15:28,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-18 20:15:28,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:15:28,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:15:28,562 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:15:28,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-18 20:15:28,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-18 20:15:28,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:15:28,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-18 20:15:28,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:15:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-18 20:15:28,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:15:28,700 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-18 20:15:28,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:15:28,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793055614] [2023-12-18 20:15:28,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:15:28,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014544338] [2023-12-18 20:15:28,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014544338] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:15:28,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:15:28,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2023-12-18 20:15:28,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637746018] [2023-12-18 20:15:28,702 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:15:28,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-18 20:15:28,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:15:28,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-18 20:15:28,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-18 20:15:28,703 INFO L87 Difference]: Start difference. First operand 86 states and 102 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-18 20:15:28,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:15:28,865 INFO L93 Difference]: Finished difference Result 129 states and 157 transitions. [2023-12-18 20:15:28,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-18 20:15:28,865 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2023-12-18 20:15:28,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:15:28,866 INFO L225 Difference]: With dead ends: 129 [2023-12-18 20:15:28,866 INFO L226 Difference]: Without dead ends: 105 [2023-12-18 20:15:28,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-12-18 20:15:28,867 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 35 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:15:28,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 107 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:15:28,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-18 20:15:28,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 92. [2023-12-18 20:15:28,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 77 states have (on average 1.2207792207792207) internal successors, (94), 78 states have internal predecessors, (94), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-18 20:15:28,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 110 transitions. [2023-12-18 20:15:28,877 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 110 transitions. Word has length 38 [2023-12-18 20:15:28,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:15:28,877 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 110 transitions. [2023-12-18 20:15:28,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-18 20:15:28,877 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 110 transitions. [2023-12-18 20:15:28,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-18 20:15:28,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:15:28,878 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:15:28,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-18 20:15:29,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-18 20:15:29,085 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:15:29,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:15:29,085 INFO L85 PathProgramCache]: Analyzing trace with hash -715827731, now seen corresponding path program 3 times [2023-12-18 20:15:29,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:15:29,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517878040] [2023-12-18 20:15:29,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:15:29,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:15:29,093 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:15:29,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735055262] [2023-12-18 20:15:29,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-18 20:15:29,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:15:29,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:15:29,097 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:15:29,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-18 20:15:29,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-18 20:15:29,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:15:29,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-18 20:15:29,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:15:29,196 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-18 20:15:29,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:15:29,227 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-18 20:15:29,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:15:29,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517878040] [2023-12-18 20:15:29,227 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:15:29,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735055262] [2023-12-18 20:15:29,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735055262] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:15:29,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:15:29,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-18 20:15:29,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906809676] [2023-12-18 20:15:29,227 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:15:29,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-18 20:15:29,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:15:29,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-18 20:15:29,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-18 20:15:29,228 INFO L87 Difference]: Start difference. First operand 92 states and 110 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-18 20:15:29,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:15:29,306 INFO L93 Difference]: Finished difference Result 146 states and 174 transitions. [2023-12-18 20:15:29,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 20:15:29,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2023-12-18 20:15:29,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:15:29,307 INFO L225 Difference]: With dead ends: 146 [2023-12-18 20:15:29,307 INFO L226 Difference]: Without dead ends: 86 [2023-12-18 20:15:29,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-18 20:15:29,308 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:15:29,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 82 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:15:29,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-18 20:15:29,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-12-18 20:15:29,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 71 states have (on average 1.1971830985915493) internal successors, (85), 71 states have internal predecessors, (85), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-18 20:15:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 99 transitions. [2023-12-18 20:15:29,319 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 99 transitions. Word has length 41 [2023-12-18 20:15:29,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:15:29,319 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 99 transitions. [2023-12-18 20:15:29,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-18 20:15:29,319 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 99 transitions. [2023-12-18 20:15:29,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-18 20:15:29,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:15:29,319 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:15:29,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-18 20:15:29,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:15:29,525 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:15:29,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:15:29,525 INFO L85 PathProgramCache]: Analyzing trace with hash -535222425, now seen corresponding path program 4 times [2023-12-18 20:15:29,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:15:29,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215656873] [2023-12-18 20:15:29,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:15:29,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:15:29,532 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:15:29,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489689437] [2023-12-18 20:15:29,533 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-18 20:15:29,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:15:29,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:15:29,534 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:15:29,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-18 20:15:29,600 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-18 20:15:29,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:15:29,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-18 20:15:29,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:15:29,655 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-18 20:15:29,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:15:29,708 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-18 20:15:29,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:15:29,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215656873] [2023-12-18 20:15:29,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:15:29,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489689437] [2023-12-18 20:15:29,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489689437] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:15:29,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:15:29,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-18 20:15:29,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146621346] [2023-12-18 20:15:29,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:15:29,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-18 20:15:29,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:15:29,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-18 20:15:29,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-18 20:15:29,710 INFO L87 Difference]: Start difference. First operand 84 states and 99 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:15:29,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:15:29,835 INFO L93 Difference]: Finished difference Result 115 states and 134 transitions. [2023-12-18 20:15:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-18 20:15:29,835 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2023-12-18 20:15:29,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:15:29,836 INFO L225 Difference]: With dead ends: 115 [2023-12-18 20:15:29,836 INFO L226 Difference]: Without dead ends: 100 [2023-12-18 20:15:29,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 72 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-12-18 20:15:29,837 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 61 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:15:29,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 103 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:15:29,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-12-18 20:15:29,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 87. [2023-12-18 20:15:29,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 74 states have internal predecessors, (87), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-18 20:15:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2023-12-18 20:15:29,845 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 42 [2023-12-18 20:15:29,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:15:29,845 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2023-12-18 20:15:29,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:15:29,845 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2023-12-18 20:15:29,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-18 20:15:29,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:15:29,846 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:15:29,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-18 20:15:30,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-18 20:15:30,053 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:15:30,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:15:30,054 INFO L85 PathProgramCache]: Analyzing trace with hash -47121920, now seen corresponding path program 5 times [2023-12-18 20:15:30,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:15:30,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925700329] [2023-12-18 20:15:30,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:15:30,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:15:30,060 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:15:30,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827787081] [2023-12-18 20:15:30,060 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-18 20:15:30,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:15:30,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:15:30,061 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:15:30,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-18 20:15:30,110 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-12-18 20:15:30,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:15:30,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-18 20:15:30,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:15:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-18 20:15:30,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 20:15:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-18 20:15:30,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 20:15:30,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925700329] [2023-12-18 20:15:30,238 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 20:15:30,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827787081] [2023-12-18 20:15:30,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827787081] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 20:15:30,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-18 20:15:30,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-18 20:15:30,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082728181] [2023-12-18 20:15:30,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-18 20:15:30,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-18 20:15:30,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 20:15:30,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-18 20:15:30,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-18 20:15:30,239 INFO L87 Difference]: Start difference. First operand 87 states and 101 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:15:30,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 20:15:30,366 INFO L93 Difference]: Finished difference Result 136 states and 153 transitions. [2023-12-18 20:15:30,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-18 20:15:30,366 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2023-12-18 20:15:30,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 20:15:30,367 INFO L225 Difference]: With dead ends: 136 [2023-12-18 20:15:30,367 INFO L226 Difference]: Without dead ends: 88 [2023-12-18 20:15:30,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2023-12-18 20:15:30,368 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 67 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 20:15:30,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 89 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 20:15:30,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-12-18 20:15:30,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2023-12-18 20:15:30,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 71 states have (on average 1.1408450704225352) internal successors, (81), 71 states have internal predecessors, (81), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-18 20:15:30,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 95 transitions. [2023-12-18 20:15:30,378 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 95 transitions. Word has length 43 [2023-12-18 20:15:30,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 20:15:30,378 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 95 transitions. [2023-12-18 20:15:30,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-18 20:15:30,378 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 95 transitions. [2023-12-18 20:15:30,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-18 20:15:30,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 20:15:30,379 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 20:15:30,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-18 20:15:30,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-18 20:15:30,579 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 20:15:30,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 20:15:30,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1854788154, now seen corresponding path program 6 times [2023-12-18 20:15:30,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 20:15:30,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542195525] [2023-12-18 20:15:30,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 20:15:30,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 20:15:30,589 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-18 20:15:30,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1618673688] [2023-12-18 20:15:30,590 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-18 20:15:30,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 20:15:30,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 20:15:30,601 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 20:15:30,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-18 20:15:30,962 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-12-18 20:15:30,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 20:15:30,965 WARN L260 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 99 conjunts are in the unsatisfiable core [2023-12-18 20:15:30,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 20:15:30,998 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 16 treesize of output 12 [2023-12-18 20:15:31,023 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 29 treesize of output 28 [2023-12-18 20:15:31,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:15:31,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-12-18 20:15:31,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-18 20:15:31,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-12-18 20:15:48,060 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-12-18 20:15:48,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 240 treesize of output 225 [2023-12-18 20:15:55,119 WARN L293 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 384 DAG size of output: 89 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-18 20:15:55,119 INFO L349 Elim1Store]: treesize reduction 1745, result has 14.3 percent of original size [2023-12-18 20:15:55,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 60 case distinctions, treesize of input 262 treesize of output 941 [2023-12-18 20:16:27,979 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2023-12-18 20:16:27,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 4333 treesize of output 4176 [2023-12-18 20:16:50,366 INFO L349 Elim1Store]: treesize reduction 734, result has 22.6 percent of original size [2023-12-18 20:16:50,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 511 treesize of output 599 [2023-12-18 20:16:56,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:56,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,086 INFO L224 Elim1Store]: Index analysis took 119 ms [2023-12-18 20:16:57,392 INFO L349 Elim1Store]: treesize reduction 119, result has 45.4 percent of original size [2023-12-18 20:16:57,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 39 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 286 treesize of output 381 [2023-12-18 20:16:57,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:57,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,247 INFO L349 Elim1Store]: treesize reduction 119, result has 45.4 percent of original size [2023-12-18 20:16:58,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 39 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 286 treesize of output 381 [2023-12-18 20:16:58,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:58,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,164 INFO L349 Elim1Store]: treesize reduction 119, result has 45.4 percent of original size [2023-12-18 20:16:59,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 39 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 286 treesize of output 381 [2023-12-18 20:16:59,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:16:59,964 INFO L224 Elim1Store]: Index analysis took 102 ms [2023-12-18 20:17:00,165 INFO L349 Elim1Store]: treesize reduction 119, result has 45.4 percent of original size [2023-12-18 20:17:00,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 39 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 275 treesize of output 370 [2023-12-18 20:17:01,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:01,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:01,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:01,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:01,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:01,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:01,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:01,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,227 INFO L349 Elim1Store]: treesize reduction 119, result has 45.4 percent of original size [2023-12-18 20:17:02,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 191 treesize of output 266 [2023-12-18 20:17:02,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:02,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:03,231 INFO L349 Elim1Store]: treesize reduction 119, result has 45.4 percent of original size [2023-12-18 20:17:03,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 39 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 275 treesize of output 370 [2023-12-18 20:17:03,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:03,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:03,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:03,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:03,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:04,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:04,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:04,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:05,619 INFO L349 Elim1Store]: treesize reduction 393, result has 45.8 percent of original size [2023-12-18 20:17:05,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 754 treesize of output 1035 [2023-12-18 20:17:10,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:10,610 INFO L224 Elim1Store]: Index analysis took 116 ms [2023-12-18 20:17:10,879 INFO L349 Elim1Store]: treesize reduction 159, result has 27.1 percent of original size [2023-12-18 20:17:10,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 39 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 286 treesize of output 341 [2023-12-18 20:17:11,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:11,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:11,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:11,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:11,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:11,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:11,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:11,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:11,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:11,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:11,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-18 20:17:11,450 INFO L349 Elim1Store]: treesize reduction 638, result has 0.2 percent of original size [2023-12-18 20:17:11,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 257 treesize of output 1 [2023-12-18 20:17:17,782 WARN L293 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:19:45,877 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:19:53,906 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:20:01,921 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:20:14,587 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:20:22,605 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:20:30,631 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:22:19,857 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:22:27,891 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:22:33,163 WARN L293 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:22:41,178 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:22:54,654 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:23:07,368 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:23:15,384 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:23:27,524 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-18 20:24:54,443 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-18 20:25:00,714 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-18 20:25:00,717 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-18 20:25:01,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-18 20:25:01,920 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-18 20:25:01,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-18 20:25:01,974 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-18 20:25:01,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-18 20:25:01,974 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 50 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-18 20:25:01,977 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2023-12-18 20:25:01,979 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-18 20:25:01,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 08:25:01 BoogieIcfgContainer [2023-12-18 20:25:01,980 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-18 20:25:01,980 INFO L158 Benchmark]: Toolchain (without parser) took 881499.52ms. Allocated memory was 215.0MB in the beginning and 332.4MB in the end (delta: 117.4MB). Free memory was 150.0MB in the beginning and 186.1MB in the end (delta: -36.1MB). Peak memory consumption was 171.3MB. Max. memory is 8.0GB. [2023-12-18 20:25:01,980 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 215.0MB. Free memory is still 165.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-18 20:25:01,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 151.07ms. Allocated memory is still 215.0MB. Free memory was 149.8MB in the beginning and 138.2MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-18 20:25:01,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.01ms. Allocated memory is still 215.0MB. Free memory was 137.9MB in the beginning and 136.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-18 20:25:01,981 INFO L158 Benchmark]: Boogie Preprocessor took 35.63ms. Allocated memory is still 215.0MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-18 20:25:01,981 INFO L158 Benchmark]: RCFGBuilder took 390.36ms. Allocated memory was 215.0MB in the beginning and 332.4MB in the end (delta: 117.4MB). Free memory was 134.1MB in the beginning and 285.4MB in the end (delta: -151.3MB). Peak memory consumption was 6.5MB. Max. memory is 8.0GB. [2023-12-18 20:25:01,981 INFO L158 Benchmark]: TraceAbstraction took 880880.40ms. Allocated memory is still 332.4MB. Free memory was 284.8MB in the beginning and 186.1MB in the end (delta: 98.7MB). Peak memory consumption was 187.9MB. Max. memory is 8.0GB. [2023-12-18 20:25:01,982 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 215.0MB. Free memory is still 165.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 151.07ms. Allocated memory is still 215.0MB. Free memory was 149.8MB in the beginning and 138.2MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.01ms. Allocated memory is still 215.0MB. Free memory was 137.9MB in the beginning and 136.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.63ms. Allocated memory is still 215.0MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 390.36ms. Allocated memory was 215.0MB in the beginning and 332.4MB in the end (delta: 117.4MB). Free memory was 134.1MB in the beginning and 285.4MB in the end (delta: -151.3MB). Peak memory consumption was 6.5MB. Max. memory is 8.0GB. * TraceAbstraction took 880880.40ms. Allocated memory is still 332.4MB. Free memory was 284.8MB in the beginning and 186.1MB in the end (delta: 98.7MB). Peak memory consumption was 187.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 35]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 35). Cancelled while NwaCegarLoop was analyzing trace of length 50 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 880.8s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 436 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 422 mSDsluCounter, 929 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 645 mSDsCounter, 95 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1467 IncrementalHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 95 mSolverCounterUnsat, 284 mSDtfsCounter, 1467 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 650 GetRequests, 499 SyntacticMatches, 14 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 217.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=8, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 112 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 301.7s InterpolantComputationTime, 401 NumberOfCodeBlocks, 379 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 572 ConstructedInterpolants, 10 QuantifiedInterpolants, 1586 SizeOfPredicates, 44 NumberOfNonLiveVariables, 1276 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 258/311 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown