/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 05:46:25,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 05:46:25,127 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 05:46:25,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 05:46:25,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 05:46:25,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 05:46:25,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 05:46:25,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 05:46:25,158 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 05:46:25,161 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 05:46:25,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 05:46:25,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 05:46:25,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 05:46:25,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 05:46:25,163 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 05:46:25,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 05:46:25,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 05:46:25,164 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 05:46:25,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 05:46:25,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 05:46:25,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 05:46:25,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 05:46:25,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 05:46:25,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 05:46:25,165 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 05:46:25,165 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 05:46:25,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 05:46:25,165 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 05:46:25,166 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 05:46:25,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 05:46:25,167 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 05:46:25,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 05:46:25,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 05:46:25,167 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 05:46:25,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 05:46:25,168 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 05:46:25,168 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 05:46:25,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 05:46:25,168 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 05:46:25,168 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 05:46:25,168 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 05:46:25,168 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 05:46:25,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 05:46:25,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 05:46:25,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 05:46:25,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 05:46:25,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 05:46:25,390 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 05:46:25,390 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 05:46:25,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound50.c [2023-12-21 05:46:26,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 05:46:26,611 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 05:46:26,612 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound50.c [2023-12-21 05:46:26,617 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/188fb706c/921cdd780e734e4eb95483bdd92af546/FLAGedff59c40 [2023-12-21 05:46:26,627 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/188fb706c/921cdd780e734e4eb95483bdd92af546 [2023-12-21 05:46:26,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 05:46:26,629 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 05:46:26,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 05:46:26,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 05:46:26,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 05:46:26,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10696dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26, skipping insertion in model container [2023-12-21 05:46:26,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,653 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 05:46:26,740 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound50.c[588,601] [2023-12-21 05:46:26,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 05:46:26,760 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 05:46:26,768 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/cohencu-ll_valuebound50.c[588,601] [2023-12-21 05:46:26,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 05:46:26,782 INFO L206 MainTranslator]: Completed translation [2023-12-21 05:46:26,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26 WrapperNode [2023-12-21 05:46:26,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 05:46:26,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 05:46:26,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 05:46:26,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 05:46:26,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,804 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-12-21 05:46:26,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 05:46:26,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 05:46:26,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 05:46:26,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 05:46:26,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,813 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,820 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-21 05:46:26,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,824 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,825 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 05:46:26,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 05:46:26,827 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 05:46:26,827 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 05:46:26,827 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (1/1) ... [2023-12-21 05:46:26,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 05:46:26,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:46:26,853 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) [2023-12-21 05:46:26,882 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 [2023-12-21 05:46:26,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 05:46:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 05:46:26,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 05:46:26,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 05:46:26,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-21 05:46:26,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-21 05:46:26,936 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 05:46:26,938 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 05:46:27,041 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 05:46:27,056 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 05:46:27,056 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 05:46:27,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:46:27 BoogieIcfgContainer [2023-12-21 05:46:27,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 05:46:27,058 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 05:46:27,058 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 05:46:27,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 05:46:27,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:46:26" (1/3) ... [2023-12-21 05:46:27,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a1419b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:46:27, skipping insertion in model container [2023-12-21 05:46:27,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:46:26" (2/3) ... [2023-12-21 05:46:27,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a1419b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:46:27, skipping insertion in model container [2023-12-21 05:46:27,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:46:27" (3/3) ... [2023-12-21 05:46:27,061 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu-ll_valuebound50.c [2023-12-21 05:46:27,072 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 05:46:27,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 05:46:27,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 05:46:27,102 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;@6a642cb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 05:46:27,103 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 05:46:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-21 05:46:27,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-21 05:46:27,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:27,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:46:27,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:27,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:27,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2080946738, now seen corresponding path program 1 times [2023-12-21 05:46:27,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:27,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500212761] [2023-12-21 05:46:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:27,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 05:46:27,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 05:46:27,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:27,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500212761] [2023-12-21 05:46:27,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500212761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 05:46:27,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 05:46:27,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 05:46:27,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135819341] [2023-12-21 05:46:27,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 05:46:27,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 05:46:27,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:27,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 05:46:27,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 05:46:27,246 INFO L87 Difference]: Start difference. First operand has 24 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 05:46:27,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:46:27,263 INFO L93 Difference]: Finished difference Result 46 states and 84 transitions. [2023-12-21 05:46:27,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 05:46:27,265 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-21 05:46:27,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:46:27,269 INFO L225 Difference]: With dead ends: 46 [2023-12-21 05:46:27,269 INFO L226 Difference]: Without dead ends: 22 [2023-12-21 05:46:27,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 05:46:27,272 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 05:46:27,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 05:46:27,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-12-21 05:46:27,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-12-21 05:46:27,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-21 05:46:27,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 32 transitions. [2023-12-21 05:46:27,295 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 32 transitions. Word has length 8 [2023-12-21 05:46:27,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:46:27,295 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 32 transitions. [2023-12-21 05:46:27,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 05:46:27,296 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2023-12-21 05:46:27,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-21 05:46:27,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:27,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:46:27,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 05:46:27,297 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:27,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:27,297 INFO L85 PathProgramCache]: Analyzing trace with hash -304390244, now seen corresponding path program 1 times [2023-12-21 05:46:27,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:27,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196476001] [2023-12-21 05:46:27,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:27,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 05:46:27,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 05:46:27,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:27,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196476001] [2023-12-21 05:46:27,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196476001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 05:46:27,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 05:46:27,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 05:46:27,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682379585] [2023-12-21 05:46:27,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 05:46:27,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 05:46:27,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:27,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 05:46:27,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 05:46:27,448 INFO L87 Difference]: Start difference. First operand 22 states and 32 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 05:46:27,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:46:27,506 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2023-12-21 05:46:27,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 05:46:27,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-21 05:46:27,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:46:27,509 INFO L225 Difference]: With dead ends: 28 [2023-12-21 05:46:27,509 INFO L226 Difference]: Without dead ends: 26 [2023-12-21 05:46:27,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 05:46:27,511 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 7 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 05:46:27,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 78 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 05:46:27,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-12-21 05:46:27,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-12-21 05:46:27,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-21 05:46:27,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2023-12-21 05:46:27,528 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 8 [2023-12-21 05:46:27,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:46:27,529 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-12-21 05:46:27,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 05:46:27,529 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2023-12-21 05:46:27,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-21 05:46:27,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:27,529 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:46:27,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 05:46:27,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:27,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:27,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1112146385, now seen corresponding path program 1 times [2023-12-21 05:46:27,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:27,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046522060] [2023-12-21 05:46:27,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:27,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:27,541 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 05:46:27,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566281854] [2023-12-21 05:46:27,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:27,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:27,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:46:27,544 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) [2023-12-21 05:46:27,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 05:46:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 05:46:27,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 05:46:27,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 05:46:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 05:46:27,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 05:46:27,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 05:46:27,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:27,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046522060] [2023-12-21 05:46:27,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 05:46:27,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566281854] [2023-12-21 05:46:27,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566281854] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 05:46:27,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 05:46:27,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2023-12-21 05:46:27,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098632298] [2023-12-21 05:46:27,812 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 05:46:27,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 05:46:27,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:27,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 05:46:27,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-21 05:46:27,814 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand has 12 states, 10 states have (on average 1.6) internal successors, (16), 9 states have internal predecessors, (16), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 05:46:28,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:46:28,060 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2023-12-21 05:46:28,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 05:46:28,063 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.6) internal successors, (16), 9 states have internal predecessors, (16), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2023-12-21 05:46:28,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:46:28,064 INFO L225 Difference]: With dead ends: 51 [2023-12-21 05:46:28,064 INFO L226 Difference]: Without dead ends: 49 [2023-12-21 05:46:28,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-21 05:46:28,065 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 18 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 05:46:28,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 100 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 05:46:28,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-12-21 05:46:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2023-12-21 05:46:28,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 20 states have (on average 1.15) internal successors, (23), 22 states have internal predecessors, (23), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 05:46:28,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2023-12-21 05:46:28,095 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 13 [2023-12-21 05:46:28,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:46:28,095 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2023-12-21 05:46:28,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.6) internal successors, (16), 9 states have internal predecessors, (16), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-21 05:46:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2023-12-21 05:46:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-21 05:46:28,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:28,096 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:46:28,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 05:46:28,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:28,297 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:28,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:28,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1589877564, now seen corresponding path program 1 times [2023-12-21 05:46:28,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:28,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137937851] [2023-12-21 05:46:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:28,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:28,306 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 05:46:28,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [416777272] [2023-12-21 05:46:28,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:28,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:28,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:46:28,320 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) [2023-12-21 05:46:28,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 05:46:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 05:46:28,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 05:46:28,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 05:46:28,406 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 05:46:28,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 05:46:28,498 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 05:46:28,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:28,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137937851] [2023-12-21 05:46:28,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 05:46:28,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416777272] [2023-12-21 05:46:28,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416777272] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 05:46:28,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 05:46:28,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2023-12-21 05:46:28,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424111066] [2023-12-21 05:46:28,499 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 05:46:28,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 05:46:28,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:28,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 05:46:28,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-21 05:46:28,501 INFO L87 Difference]: Start difference. First operand 46 states and 64 transitions. Second operand has 12 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-21 05:46:28,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:46:28,708 INFO L93 Difference]: Finished difference Result 53 states and 70 transitions. [2023-12-21 05:46:28,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 05:46:28,709 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 18 [2023-12-21 05:46:28,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:46:28,710 INFO L225 Difference]: With dead ends: 53 [2023-12-21 05:46:28,710 INFO L226 Difference]: Without dead ends: 51 [2023-12-21 05:46:28,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-21 05:46:28,711 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 17 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 05:46:28,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 70 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 05:46:28,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-21 05:46:28,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2023-12-21 05:46:28,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 25 states have internal predecessors, (26), 21 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-21 05:46:28,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2023-12-21 05:46:28,730 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 18 [2023-12-21 05:46:28,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:46:28,730 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2023-12-21 05:46:28,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-21 05:46:28,730 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2023-12-21 05:46:28,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-21 05:46:28,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:28,731 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:46:28,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 05:46:28,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-12-21 05:46:28,937 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:28,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:28,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1560032783, now seen corresponding path program 1 times [2023-12-21 05:46:28,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:28,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133981535] [2023-12-21 05:46:28,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:28,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:28,946 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 05:46:28,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [893886724] [2023-12-21 05:46:28,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:28,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:28,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:46:28,958 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) [2023-12-21 05:46:28,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 05:46:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 05:46:29,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 05:46:29,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 05:46:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-21 05:46:29,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 05:46:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-21 05:46:29,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:29,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133981535] [2023-12-21 05:46:29,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 05:46:29,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893886724] [2023-12-21 05:46:29,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893886724] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 05:46:29,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 05:46:29,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2023-12-21 05:46:29,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506236712] [2023-12-21 05:46:29,262 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 05:46:29,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 05:46:29,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:29,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 05:46:29,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-12-21 05:46:29,263 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. Second operand has 12 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 4 states have call successors, (6) [2023-12-21 05:46:29,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:46:29,642 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2023-12-21 05:46:29,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 05:46:29,642 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 4 states have call successors, (6) Word has length 23 [2023-12-21 05:46:29,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:46:29,644 INFO L225 Difference]: With dead ends: 66 [2023-12-21 05:46:29,644 INFO L226 Difference]: Without dead ends: 57 [2023-12-21 05:46:29,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-21 05:46:29,645 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 16 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 05:46:29,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 95 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 05:46:29,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-12-21 05:46:29,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-12-21 05:46:29,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 32 states have internal predecessors, (32), 19 states have call successors, (19), 7 states have call predecessors, (19), 7 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-21 05:46:29,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2023-12-21 05:46:29,656 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 23 [2023-12-21 05:46:29,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:46:29,656 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2023-12-21 05:46:29,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.9) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 4 states have call successors, (6) [2023-12-21 05:46:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2023-12-21 05:46:29,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-21 05:46:29,657 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:29,657 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:46:29,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 05:46:29,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:29,862 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:29,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:29,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1335110159, now seen corresponding path program 1 times [2023-12-21 05:46:29,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:29,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576078035] [2023-12-21 05:46:29,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:29,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:29,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 05:46:29,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438408052] [2023-12-21 05:46:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:29,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:29,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:46:29,873 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) [2023-12-21 05:46:29,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 05:46:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 05:46:29,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-21 05:46:29,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 05:46:29,995 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 13 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-21 05:46:29,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 05:46:30,094 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 13 proven. 23 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-21 05:46:30,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:30,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576078035] [2023-12-21 05:46:30,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 05:46:30,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438408052] [2023-12-21 05:46:30,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438408052] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 05:46:30,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 05:46:30,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2023-12-21 05:46:30,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922612958] [2023-12-21 05:46:30,095 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 05:46:30,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 05:46:30,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:30,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 05:46:30,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-12-21 05:46:30,096 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 11 states have internal predecessors, (23), 6 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-21 05:46:34,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-21 05:46:34,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:46:34,291 INFO L93 Difference]: Finished difference Result 81 states and 98 transitions. [2023-12-21 05:46:34,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 05:46:34,292 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 11 states have internal predecessors, (23), 6 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) Word has length 45 [2023-12-21 05:46:34,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:46:34,293 INFO L225 Difference]: With dead ends: 81 [2023-12-21 05:46:34,293 INFO L226 Difference]: Without dead ends: 79 [2023-12-21 05:46:34,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2023-12-21 05:46:34,294 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-21 05:46:34,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 130 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-21 05:46:34,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-12-21 05:46:34,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2023-12-21 05:46:34,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 44 states have internal predecessors, (44), 26 states have call successors, (26), 10 states have call predecessors, (26), 10 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-21 05:46:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 95 transitions. [2023-12-21 05:46:34,309 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 95 transitions. Word has length 45 [2023-12-21 05:46:34,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:46:34,310 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 95 transitions. [2023-12-21 05:46:34,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 11 states have internal predecessors, (23), 6 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (14), 4 states have call predecessors, (14), 6 states have call successors, (14) [2023-12-21 05:46:34,310 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 95 transitions. [2023-12-21 05:46:34,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-21 05:46:34,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:34,311 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:46:34,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 05:46:34,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:34,515 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:34,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:34,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1958076911, now seen corresponding path program 2 times [2023-12-21 05:46:34,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:34,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674319172] [2023-12-21 05:46:34,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:34,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:34,534 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 05:46:34,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1364179543] [2023-12-21 05:46:34,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 05:46:34,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:34,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:46:34,535 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) [2023-12-21 05:46:34,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 05:46:34,573 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 05:46:34,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 05:46:34,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-21 05:46:34,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 05:46:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 17 proven. 31 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-12-21 05:46:34,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 05:46:34,844 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 19 proven. 25 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-21 05:46:34,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:34,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674319172] [2023-12-21 05:46:34,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 05:46:34,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364179543] [2023-12-21 05:46:34,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364179543] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 05:46:34,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 05:46:34,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2023-12-21 05:46:34,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143825768] [2023-12-21 05:46:34,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 05:46:34,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 05:46:34,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:34,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 05:46:34,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-21 05:46:34,846 INFO L87 Difference]: Start difference. First operand 78 states and 95 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-21 05:46:35,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:46:35,016 INFO L93 Difference]: Finished difference Result 85 states and 101 transitions. [2023-12-21 05:46:35,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 05:46:35,017 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 55 [2023-12-21 05:46:35,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:46:35,017 INFO L225 Difference]: With dead ends: 85 [2023-12-21 05:46:35,017 INFO L226 Difference]: Without dead ends: 80 [2023-12-21 05:46:35,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-12-21 05:46:35,018 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 19 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 05:46:35,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 96 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 05:46:35,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-12-21 05:46:35,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-12-21 05:46:35,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 47 states have internal predecessors, (47), 24 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-21 05:46:35,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2023-12-21 05:46:35,033 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 55 [2023-12-21 05:46:35,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:46:35,033 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2023-12-21 05:46:35,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-12-21 05:46:35,033 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2023-12-21 05:46:35,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-21 05:46:35,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:35,034 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:46:35,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 05:46:35,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:35,240 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:35,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:35,243 INFO L85 PathProgramCache]: Analyzing trace with hash 811423347, now seen corresponding path program 1 times [2023-12-21 05:46:35,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:35,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047851528] [2023-12-21 05:46:35,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:35,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:35,251 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 05:46:35,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [688070879] [2023-12-21 05:46:35,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:35,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:35,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:46:35,272 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) [2023-12-21 05:46:35,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 05:46:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 05:46:35,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-21 05:46:35,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 05:46:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-21 05:46:35,490 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 05:46:35,604 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-21 05:46:35,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:35,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047851528] [2023-12-21 05:46:35,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 05:46:35,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688070879] [2023-12-21 05:46:35,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688070879] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 05:46:35,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 05:46:35,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2023-12-21 05:46:35,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821643089] [2023-12-21 05:46:35,604 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 05:46:35,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 05:46:35,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:35,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 05:46:35,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-12-21 05:46:35,606 INFO L87 Difference]: Start difference. First operand 80 states and 93 transitions. Second operand has 14 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 6 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-12-21 05:46:35,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:46:35,921 INFO L93 Difference]: Finished difference Result 94 states and 113 transitions. [2023-12-21 05:46:35,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 05:46:35,922 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 6 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 66 [2023-12-21 05:46:35,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:46:35,922 INFO L225 Difference]: With dead ends: 94 [2023-12-21 05:46:35,923 INFO L226 Difference]: Without dead ends: 92 [2023-12-21 05:46:35,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2023-12-21 05:46:35,923 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 21 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 05:46:35,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 156 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 05:46:35,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-12-21 05:46:35,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2023-12-21 05:46:35,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 51 states have internal predecessors, (52), 29 states have call successors, (29), 12 states have call predecessors, (29), 12 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-21 05:46:35,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 108 transitions. [2023-12-21 05:46:35,943 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 108 transitions. Word has length 66 [2023-12-21 05:46:35,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:46:35,944 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 108 transitions. [2023-12-21 05:46:35,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 6 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-12-21 05:46:35,944 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 108 transitions. [2023-12-21 05:46:35,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-21 05:46:35,971 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:35,971 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:46:36,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 05:46:36,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:36,176 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:36,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:36,176 INFO L85 PathProgramCache]: Analyzing trace with hash 462308408, now seen corresponding path program 1 times [2023-12-21 05:46:36,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:36,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028858495] [2023-12-21 05:46:36,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:36,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:36,184 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 05:46:36,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632323633] [2023-12-21 05:46:36,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:36,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:36,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:46:36,190 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) [2023-12-21 05:46:36,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 05:46:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 05:46:36,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-21 05:46:36,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 05:46:36,401 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-21 05:46:36,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 05:46:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-21 05:46:36,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:36,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028858495] [2023-12-21 05:46:36,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 05:46:36,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632323633] [2023-12-21 05:46:36,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632323633] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 05:46:36,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 05:46:36,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2023-12-21 05:46:36,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21560823] [2023-12-21 05:46:36,518 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 05:46:36,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 05:46:36,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:36,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 05:46:36,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-21 05:46:36,519 INFO L87 Difference]: Start difference. First operand 90 states and 108 transitions. Second operand has 14 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 6 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2023-12-21 05:46:36,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:46:36,825 INFO L93 Difference]: Finished difference Result 123 states and 145 transitions. [2023-12-21 05:46:36,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 05:46:36,826 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 6 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 71 [2023-12-21 05:46:36,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:46:36,826 INFO L225 Difference]: With dead ends: 123 [2023-12-21 05:46:36,827 INFO L226 Difference]: Without dead ends: 114 [2023-12-21 05:46:36,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2023-12-21 05:46:36,827 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 20 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 05:46:36,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 201 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 05:46:36,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-21 05:46:36,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2023-12-21 05:46:36,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 62 states have (on average 1.064516129032258) internal successors, (66), 65 states have internal predecessors, (66), 34 states have call successors, (34), 16 states have call predecessors, (34), 16 states have return successors, (33), 31 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-21 05:46:36,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 133 transitions. [2023-12-21 05:46:36,851 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 133 transitions. Word has length 71 [2023-12-21 05:46:36,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:46:36,852 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 133 transitions. [2023-12-21 05:46:36,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 6 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2023-12-21 05:46:36,852 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 133 transitions. [2023-12-21 05:46:36,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-21 05:46:36,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:36,852 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-12-21 05:46:36,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 05:46:37,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:37,057 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:37,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:37,058 INFO L85 PathProgramCache]: Analyzing trace with hash 978023919, now seen corresponding path program 3 times [2023-12-21 05:46:37,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:37,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569021008] [2023-12-21 05:46:37,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:37,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:37,064 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 05:46:37,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1880113344] [2023-12-21 05:46:37,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 05:46:37,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:37,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:46:37,065 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) [2023-12-21 05:46:37,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 05:46:37,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-21 05:46:37,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 05:46:37,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-21 05:46:37,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 05:46:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 55 proven. 24 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-21 05:46:37,268 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 05:46:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 55 proven. 24 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-21 05:46:38,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:38,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569021008] [2023-12-21 05:46:38,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 05:46:38,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880113344] [2023-12-21 05:46:38,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880113344] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 05:46:38,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 05:46:38,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2023-12-21 05:46:38,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462912280] [2023-12-21 05:46:38,055 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 05:46:38,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 05:46:38,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:38,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 05:46:38,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-12-21 05:46:38,056 INFO L87 Difference]: Start difference. First operand 113 states and 133 transitions. Second operand has 16 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 8 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 6 states have call predecessors, (26), 8 states have call successors, (26) [2023-12-21 05:46:39,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:46:39,398 INFO L93 Difference]: Finished difference Result 133 states and 150 transitions. [2023-12-21 05:46:39,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 05:46:39,399 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 8 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 6 states have call predecessors, (26), 8 states have call successors, (26) Word has length 77 [2023-12-21 05:46:39,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:46:39,399 INFO L225 Difference]: With dead ends: 133 [2023-12-21 05:46:39,399 INFO L226 Difference]: Without dead ends: 123 [2023-12-21 05:46:39,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2023-12-21 05:46:39,400 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 20 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 05:46:39,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 189 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 05:46:39,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-12-21 05:46:39,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-12-21 05:46:39,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 71 states have (on average 1.0422535211267605) internal successors, (74), 73 states have internal predecessors, (74), 32 states have call successors, (32), 19 states have call predecessors, (32), 19 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-21 05:46:39,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 137 transitions. [2023-12-21 05:46:39,425 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 137 transitions. Word has length 77 [2023-12-21 05:46:39,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:46:39,426 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 137 transitions. [2023-12-21 05:46:39,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 8 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 6 states have call predecessors, (26), 8 states have call successors, (26) [2023-12-21 05:46:39,426 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 137 transitions. [2023-12-21 05:46:39,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 05:46:39,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:39,431 INFO L195 NwaCegarLoop]: trace histogram [22, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:46:39,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 05:46:39,637 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,SelfDestructingSolverStorable9 [2023-12-21 05:46:39,638 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:39,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:39,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1954081427, now seen corresponding path program 2 times [2023-12-21 05:46:39,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:39,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829914712] [2023-12-21 05:46:39,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:39,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:39,646 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 05:46:39,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700582595] [2023-12-21 05:46:39,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 05:46:39,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:39,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:46:39,656 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) [2023-12-21 05:46:39,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 05:46:39,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 05:46:39,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 05:46:39,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-21 05:46:39,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 05:46:39,972 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 101 proven. 43 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2023-12-21 05:46:39,972 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 05:46:41,344 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 122 proven. 1 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2023-12-21 05:46:41,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:41,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829914712] [2023-12-21 05:46:41,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 05:46:41,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700582595] [2023-12-21 05:46:41,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700582595] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 05:46:41,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 05:46:41,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 17 [2023-12-21 05:46:41,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224597024] [2023-12-21 05:46:41,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 05:46:41,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 05:46:41,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:41,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 05:46:41,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-12-21 05:46:41,346 INFO L87 Difference]: Start difference. First operand 123 states and 137 transitions. Second operand has 17 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 14 states have internal predecessors, (30), 10 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-12-21 05:46:42,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:46:42,203 INFO L93 Difference]: Finished difference Result 142 states and 152 transitions. [2023-12-21 05:46:42,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 05:46:42,203 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 14 states have internal predecessors, (30), 10 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 120 [2023-12-21 05:46:42,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:46:42,204 INFO L225 Difference]: With dead ends: 142 [2023-12-21 05:46:42,204 INFO L226 Difference]: Without dead ends: 140 [2023-12-21 05:46:42,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2023-12-21 05:46:42,205 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 13 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 05:46:42,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 209 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 05:46:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-21 05:46:42,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2023-12-21 05:46:42,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 83 states have (on average 1.036144578313253) internal successors, (86), 85 states have internal predecessors, (86), 32 states have call successors, (32), 23 states have call predecessors, (32), 23 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-21 05:46:42,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 149 transitions. [2023-12-21 05:46:42,226 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 149 transitions. Word has length 120 [2023-12-21 05:46:42,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:46:42,226 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 149 transitions. [2023-12-21 05:46:42,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 14 states have internal predecessors, (30), 10 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-12-21 05:46:42,226 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 149 transitions. [2023-12-21 05:46:42,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-21 05:46:42,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:46:42,227 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:46:42,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 05:46:42,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:42,432 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:46:42,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:46:42,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1568288115, now seen corresponding path program 1 times [2023-12-21 05:46:42,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:46:42,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950169766] [2023-12-21 05:46:42,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:42,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:46:42,445 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 05:46:42,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [600565011] [2023-12-21 05:46:42,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:46:42,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:46:42,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:46:42,453 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) [2023-12-21 05:46:42,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 05:46:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 05:46:42,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-21 05:46:42,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 05:46:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 45 proven. 109 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-12-21 05:46:42,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 05:46:49,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1100 backedges. 45 proven. 109 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-12-21 05:46:49,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:46:49,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950169766] [2023-12-21 05:46:49,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 05:46:49,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600565011] [2023-12-21 05:46:49,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600565011] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 05:46:49,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 05:46:49,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2023-12-21 05:46:49,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933171613] [2023-12-21 05:46:49,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 05:46:49,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 05:46:49,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:46:49,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 05:46:49,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-12-21 05:46:49,779 INFO L87 Difference]: Start difference. First operand 139 states and 149 transitions. Second operand has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 15 states have internal predecessors, (33), 10 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 8 states have call predecessors, (46), 10 states have call successors, (46) [2023-12-21 05:47:03,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-21 05:47:07,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-21 05:47:11,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-21 05:47:11,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:47:11,685 INFO L93 Difference]: Finished difference Result 146 states and 155 transitions. [2023-12-21 05:47:11,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 05:47:11,686 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 15 states have internal predecessors, (33), 10 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 8 states have call predecessors, (46), 10 states have call successors, (46) Word has length 130 [2023-12-21 05:47:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:47:11,686 INFO L225 Difference]: With dead ends: 146 [2023-12-21 05:47:11,686 INFO L226 Difference]: Without dead ends: 129 [2023-12-21 05:47:11,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2023-12-21 05:47:11,687 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 20 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 42 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-12-21 05:47:11,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 270 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 331 Invalid, 3 Unknown, 0 Unchecked, 12.8s Time] [2023-12-21 05:47:11,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-12-21 05:47:11,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-12-21 05:47:11,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 79 states have (on average 1.0126582278481013) internal successors, (80), 79 states have internal predecessors, (80), 28 states have call successors, (28), 22 states have call predecessors, (28), 21 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-21 05:47:11,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 135 transitions. [2023-12-21 05:47:11,709 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 135 transitions. Word has length 130 [2023-12-21 05:47:11,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:47:11,709 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 135 transitions. [2023-12-21 05:47:11,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 15 states have internal predecessors, (33), 10 states have call successors, (48), 3 states have call predecessors, (48), 2 states have return successors, (46), 8 states have call predecessors, (46), 10 states have call successors, (46) [2023-12-21 05:47:11,709 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 135 transitions. [2023-12-21 05:47:11,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 05:47:11,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 05:47:11,710 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 05:47:11,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 05:47:11,913 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,SelfDestructingSolverStorable11 [2023-12-21 05:47:11,913 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 05:47:11,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 05:47:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1567024997, now seen corresponding path program 2 times [2023-12-21 05:47:11,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 05:47:11,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688965760] [2023-12-21 05:47:11,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 05:47:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 05:47:11,923 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 05:47:11,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386344747] [2023-12-21 05:47:11,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 05:47:11,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 05:47:11,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 05:47:11,929 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) [2023-12-21 05:47:11,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 05:47:12,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 05:47:12,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 05:47:12,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-21 05:47:12,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 05:47:12,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 128 proven. 74 refuted. 0 times theorem prover too weak. 1326 trivial. 0 not checked. [2023-12-21 05:47:12,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 05:47:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1528 backedges. 128 proven. 67 refuted. 0 times theorem prover too weak. 1333 trivial. 0 not checked. [2023-12-21 05:47:13,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 05:47:13,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688965760] [2023-12-21 05:47:13,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 05:47:13,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386344747] [2023-12-21 05:47:13,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386344747] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 05:47:13,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 05:47:13,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 21 [2023-12-21 05:47:13,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666737106] [2023-12-21 05:47:13,294 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 05:47:13,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 05:47:13,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 05:47:13,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 05:47:13,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2023-12-21 05:47:13,295 INFO L87 Difference]: Start difference. First operand 129 states and 135 transitions. Second operand has 21 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 18 states have internal predecessors, (36), 13 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (49), 11 states have call predecessors, (49), 13 states have call successors, (49) [2023-12-21 05:47:13,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 05:47:13,998 INFO L93 Difference]: Finished difference Result 155 states and 165 transitions. [2023-12-21 05:47:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 05:47:13,999 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 18 states have internal predecessors, (36), 13 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (49), 11 states have call predecessors, (49), 13 states have call successors, (49) Word has length 152 [2023-12-21 05:47:13,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 05:47:13,999 INFO L225 Difference]: With dead ends: 155 [2023-12-21 05:47:13,999 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 05:47:14,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2023-12-21 05:47:14,000 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 13 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 05:47:14,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 390 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 05:47:14,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 05:47:14,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 05:47:14,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 05:47:14,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 05:47:14,001 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2023-12-21 05:47:14,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 05:47:14,001 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 05:47:14,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 18 states have internal predecessors, (36), 13 states have call successors, (51), 3 states have call predecessors, (51), 2 states have return successors, (49), 11 states have call predecessors, (49), 13 states have call successors, (49) [2023-12-21 05:47:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 05:47:14,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 05:47:14,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 05:47:14,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-21 05:47:14,204 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,SelfDestructingSolverStorable12 [2023-12-21 05:47:14,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 05:48:13,445 WARN L293 SmtUtils]: Spent 57.80s on a formula simplification. DAG size of input: 141 DAG size of output: 71 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-21 05:48:33,004 WARN L293 SmtUtils]: Spent 19.56s on a formula simplification. DAG size of input: 150 DAG size of output: 48 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-21 05:48:53,857 WARN L293 SmtUtils]: Spent 20.85s on a formula simplification. DAG size of input: 150 DAG size of output: 65 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-21 05:49:06,029 WARN L293 SmtUtils]: Spent 12.17s on a formula simplification. DAG size of input: 147 DAG size of output: 45 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-21 05:49:42,491 WARN L293 SmtUtils]: Spent 36.46s on a formula simplification. DAG size of input: 147 DAG size of output: 61 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-21 05:50:06,391 WARN L293 SmtUtils]: Spent 23.90s on a formula simplification. DAG size of input: 148 DAG size of output: 49 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-21 05:50:37,200 WARN L293 SmtUtils]: Spent 30.71s on a formula simplification. DAG size of input: 148 DAG size of output: 49 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-21 05:50:56,500 WARN L293 SmtUtils]: Spent 19.30s on a formula simplification. DAG size of input: 148 DAG size of output: 64 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-21 05:51:18,279 WARN L293 SmtUtils]: Spent 21.78s on a formula simplification. DAG size of input: 150 DAG size of output: 65 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-21 05:51:18,282 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 05:51:18,282 INFO L895 garLoopResultBuilder]: At program point L33-2(lines 33 46) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|)) (.cse2 (* |ULTIMATE.start_main_~x~0#1| 18)) (.cse1 (* 2 |ULTIMATE.start_main_~z~0#1|))) (and (= (+ .cse0 .cse1) (+ 6 (* |ULTIMATE.start_main_~y~0#1| 12) .cse2)) (= (+ .cse0 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) .cse2 (* |ULTIMATE.start_main_~y~0#1| 24))) (<= |ULTIMATE.start_main_~a~0#1| 50) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (or (< |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) .cse1))) (<= 0 |ULTIMATE.start_main_~a~0#1|))) [2023-12-21 05:51:18,282 INFO L895 garLoopResultBuilder]: At program point L33-3(lines 33 46) the Hoare annotation is: (or (and (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~y~0#1| 24))) (<= |ULTIMATE.start_main_~a~0#1| 50) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (<= 0 |ULTIMATE.start_main_~a~0#1|) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|))) (= (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 1) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= |ULTIMATE.start_main_~y~0#1| 1) (= |ULTIMATE.start_main_~n~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0) (= 6 |ULTIMATE.start_main_~z~0#1|))) [2023-12-21 05:51:18,283 INFO L895 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: (and (= |ULTIMATE.start_main_~y~0#1| (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) 1)) (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|)) (+ 6 (* |ULTIMATE.start_main_~y~0#1| 12) (* |ULTIMATE.start_main_~x~0#1| 18))) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|)))) [2023-12-21 05:51:18,283 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~a~0#1| 50)) (.cse1 (<= 0 |ULTIMATE.start_main_~a~0#1|))) (or (and (= 2 |ULTIMATE.start_main_~n~0#1|) .cse0 (= |ULTIMATE.start_main_~x~0#1| 8) .cse1 (= 19 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~z~0#1| 18)) (let ((.cse4 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (.cse2 (* 3 |ULTIMATE.start_main_~n~0#1|)) (.cse3 (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)))) (and (= |ULTIMATE.start_main_~y~0#1| (+ .cse2 .cse3 1)) (= .cse4 (+ (* |ULTIMATE.start_main_~x~0#1| 12) (* 6 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)))) .cse0 (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) .cse1 (= (+ (* 94 |ULTIMATE.start_main_~y~0#1|) (* 3 .cse4) (* 23 |ULTIMATE.start_main_~z~0#1|) (* |ULTIMATE.start_main_~x~0#1| 54)) (+ (* 2 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 5 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) 38 (* (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 2))) (= (+ .cse2 .cse3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 1) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (and (= 7 |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~z~0#1| 12) (= |ULTIMATE.start_main_~x~0#1| 1) (= |ULTIMATE.start_main_~n~0#1| 1)) (and (= |ULTIMATE.start_main_~y~0#1| 1) (= |ULTIMATE.start_main_~n~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0) (= 6 |ULTIMATE.start_main_~z~0#1|)))) [2023-12-21 05:51:18,283 INFO L895 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: (or (let ((.cse1 (* 2 |ULTIMATE.start_main_~z~0#1|)) (.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|))) (and (= (+ .cse0 .cse1) (+ 6 (* |ULTIMATE.start_main_~y~0#1| 12) (* |ULTIMATE.start_main_~x~0#1| 18))) (<= |ULTIMATE.start_main_~a~0#1| 50) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (<= 0 |ULTIMATE.start_main_~a~0#1|) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) .cse1)) (= (+ (* 94 |ULTIMATE.start_main_~y~0#1|) (* 3 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (* 23 |ULTIMATE.start_main_~z~0#1|) (* |ULTIMATE.start_main_~x~0#1| 54)) (+ (* 2 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 5 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) 38 (* .cse0 2))) (= (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 1) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) (and (= |ULTIMATE.start_main_~y~0#1| 1) (= |ULTIMATE.start_main_~n~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0) (= 6 |ULTIMATE.start_main_~z~0#1|))) [2023-12-21 05:51:18,283 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2023-12-21 05:51:18,283 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 05:51:18,283 INFO L899 garLoopResultBuilder]: For program point L38(lines 33 46) no Hoare annotation was computed. [2023-12-21 05:51:18,283 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|)) (.cse2 (* |ULTIMATE.start_main_~x~0#1| 18)) (.cse1 (* 2 |ULTIMATE.start_main_~z~0#1|))) (and (= (+ .cse0 .cse1) (+ 6 (* |ULTIMATE.start_main_~y~0#1| 12) .cse2)) (= (+ .cse0 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) .cse2 (* |ULTIMATE.start_main_~y~0#1| 24))) (<= |ULTIMATE.start_main_~a~0#1| 50) (or (< |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) .cse1))) (<= 0 |ULTIMATE.start_main_~a~0#1|) (= (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 1) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) [2023-12-21 05:51:18,284 INFO L895 garLoopResultBuilder]: At program point L34(line 34) the Hoare annotation is: (let ((.cse0 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse1 (* 2 |ULTIMATE.start_main_~z~0#1|))) (and (= (+ (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~z~0#1|) (* |ULTIMATE.start_main_~n~0#1| 12) 14) (+ .cse0 .cse1)) (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~y~0#1| 24))) (<= |ULTIMATE.start_main_~a~0#1| 50) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (or (< |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (= (+ .cse0 (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) .cse1))) (<= 0 |ULTIMATE.start_main_~a~0#1|))) [2023-12-21 05:51:18,284 INFO L895 garLoopResultBuilder]: At program point L34-1(line 34) the Hoare annotation is: (let ((.cse1 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|))) (and (= |ULTIMATE.start_main_~y~0#1| (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) 1)) (= (+ .cse0 6 .cse1) (+ (* |ULTIMATE.start_main_~z~0#1| 4) (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~y~0#1| 24))) (<= |ULTIMATE.start_main_~a~0#1| 50) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (or (< |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|)))) (<= 0 |ULTIMATE.start_main_~a~0#1|) (= (+ (* 94 |ULTIMATE.start_main_~y~0#1|) (* 3 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (* 23 |ULTIMATE.start_main_~z~0#1|) (* |ULTIMATE.start_main_~x~0#1| 54)) (+ (* 2 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 5 .cse1) 38 (* .cse0 2))))) [2023-12-21 05:51:18,284 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-12-21 05:51:18,284 INFO L895 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: (let ((.cse0 (* 3 |ULTIMATE.start_main_~n~0#1|)) (.cse1 (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)))) (and (= |ULTIMATE.start_main_~y~0#1| (+ .cse0 .cse1 1)) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (= (+ .cse0 .cse1 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 1) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) [2023-12-21 05:51:18,284 INFO L895 garLoopResultBuilder]: At program point L49(line 49) the Hoare annotation is: (or (and (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) 6 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (+ (* |ULTIMATE.start_main_~z~0#1| 4) (* |ULTIMATE.start_main_~x~0#1| 18) (* |ULTIMATE.start_main_~y~0#1| 24))) (<= |ULTIMATE.start_main_~a~0#1| 50) (= |ULTIMATE.start_main_~z~0#1| (+ 6 (* 6 |ULTIMATE.start_main_~n~0#1|))) (<= 0 |ULTIMATE.start_main_~a~0#1|) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) (* 2 |ULTIMATE.start_main_~z~0#1|))) (= (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 1) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= |ULTIMATE.start_main_~y~0#1| 1) (= |ULTIMATE.start_main_~n~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0) (= 6 |ULTIMATE.start_main_~z~0#1|))) [2023-12-21 05:51:18,284 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-12-21 05:51:18,284 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse2 (* |ULTIMATE.start_main_~x~0#1| 18)) (.cse1 (* 2 |ULTIMATE.start_main_~z~0#1|)) (.cse3 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|))) (and (= (+ .cse0 .cse1) (+ 6 (* |ULTIMATE.start_main_~y~0#1| 12) .cse2)) (= (+ .cse0 6 .cse3) (+ (* |ULTIMATE.start_main_~z~0#1| 4) .cse2 (* |ULTIMATE.start_main_~y~0#1| 24))) (<= |ULTIMATE.start_main_~a~0#1| 50) (or (< |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) .cse1))) (<= 0 |ULTIMATE.start_main_~a~0#1|) (= (+ (* 94 |ULTIMATE.start_main_~y~0#1|) (* 3 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (* 23 |ULTIMATE.start_main_~z~0#1|) (* |ULTIMATE.start_main_~x~0#1| 54)) (+ (* 2 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 5 .cse3) 38 (* .cse0 2))) (= (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 1) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) [2023-12-21 05:51:18,285 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse2 (* |ULTIMATE.start_main_~x~0#1| 18)) (.cse1 (* 2 |ULTIMATE.start_main_~z~0#1|)) (.cse3 (* |ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~z~0#1|)) (.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|))) (and (= (+ .cse0 .cse1) (+ 6 (* |ULTIMATE.start_main_~y~0#1| 12) .cse2)) (= (+ .cse0 6 .cse3) (+ (* |ULTIMATE.start_main_~z~0#1| 4) .cse2 (* |ULTIMATE.start_main_~y~0#1| 24))) (<= |ULTIMATE.start_main_~a~0#1| 50) (or (< |ULTIMATE.start_main_~n~0#1| (+ |ULTIMATE.start_main_~a~0#1| 1)) (= (+ (* 2 |ULTIMATE.start_main_~y~0#1|) (* 6 |ULTIMATE.start_main_~a~0#1|) 10) (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~z~0#1|) .cse1))) (<= 0 |ULTIMATE.start_main_~a~0#1|) (= (+ (* 94 |ULTIMATE.start_main_~y~0#1|) (* 3 (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|)) (* 23 |ULTIMATE.start_main_~z~0#1|) (* |ULTIMATE.start_main_~x~0#1| 54)) (+ (* 2 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 5 .cse3) 38 (* .cse0 2))) (= (+ (* 3 |ULTIMATE.start_main_~n~0#1|) (* 3 (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|)) (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 1) (+ |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)))) [2023-12-21 05:51:18,285 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2023-12-21 05:51:18,285 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-12-21 05:51:18,285 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-12-21 05:51:18,285 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-12-21 05:51:18,285 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-12-21 05:51:18,285 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2023-12-21 05:51:18,287 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-21 05:51:18,291 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 05:51:18,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 05:51:18 BoogieIcfgContainer [2023-12-21 05:51:18,305 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 05:51:18,306 INFO L158 Benchmark]: Toolchain (without parser) took 291675.96ms. Allocated memory was 266.3MB in the beginning and 383.8MB in the end (delta: 117.4MB). Free memory was 216.8MB in the beginning and 341.4MB in the end (delta: -124.6MB). Peak memory consumption was 208.3MB. Max. memory is 8.0GB. [2023-12-21 05:51:18,306 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 203.4MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 05:51:18,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.90ms. Allocated memory is still 266.3MB. Free memory was 216.5MB in the beginning and 205.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-21 05:51:18,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.46ms. Allocated memory is still 266.3MB. Free memory was 205.0MB in the beginning and 203.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-21 05:51:18,307 INFO L158 Benchmark]: Boogie Preprocessor took 21.89ms. Allocated memory is still 266.3MB. Free memory was 203.6MB in the beginning and 201.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 05:51:18,307 INFO L158 Benchmark]: RCFGBuilder took 229.62ms. Allocated memory is still 266.3MB. Free memory was 201.8MB in the beginning and 189.7MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-21 05:51:18,307 INFO L158 Benchmark]: TraceAbstraction took 291247.25ms. Allocated memory was 266.3MB in the beginning and 383.8MB in the end (delta: 117.4MB). Free memory was 189.2MB in the beginning and 341.4MB in the end (delta: -152.1MB). Peak memory consumption was 180.0MB. Max. memory is 8.0GB. [2023-12-21 05:51:18,309 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 203.4MB. Free memory is still 154.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 152.90ms. Allocated memory is still 266.3MB. Free memory was 216.5MB in the beginning and 205.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.46ms. Allocated memory is still 266.3MB. Free memory was 205.0MB in the beginning and 203.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.89ms. Allocated memory is still 266.3MB. Free memory was 203.6MB in the beginning and 201.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 229.62ms. Allocated memory is still 266.3MB. Free memory was 201.8MB in the beginning and 189.7MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 291247.25ms. Allocated memory was 266.3MB in the beginning and 383.8MB in the end (delta: 117.4MB). Free memory was 189.2MB in the beginning and 341.4MB in the end (delta: -152.1MB). Peak memory consumption was 180.0MB. 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 - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 291.2s, OverallIterations: 13, TraceHistogramMax: 28, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 30.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 244.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 314 SdHoareTripleChecker+Valid, 19.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 207 mSDsluCounter, 2016 SdHoareTripleChecker+Invalid, 19.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1691 mSDsCounter, 378 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2478 IncrementalHoareTripleChecker+Invalid, 2860 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 378 mSolverCounterUnsat, 325 mSDtfsCounter, 2478 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1572 GetRequests, 1382 SyntacticMatches, 1 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 14.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred in iteration=11, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 9 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 81 PreInvPairs, 145 NumberOfFragments, 1038 HoareAnnotationTreeSize, 81 FormulaSimplifications, 8929 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 13 FormulaSimplificationsInter, 2820 FormulaSimplificationTreeSizeReductionInter, 243.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 786 NumberOfCodeBlocks, 746 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1532 ConstructedInterpolants, 0 QuantifiedInterpolants, 7709 SizeOfPredicates, 39 NumberOfNonLiveVariables, 1760 ConjunctsInSsa, 317 ConjunctsInUnsatCore, 24 InterpolantComputations, 2 PerfectInterpolantSequences, 8893/9498 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: ((((((((y * z) + (2 * z)) == ((6 + (y * 12)) + (x * 18))) && ((((y * z) + 6) + (z * z)) == (((z * 4) + (x * 18)) + (y * 24)))) && (a <= 50)) && (z == (6 + (6 * n)))) && ((n < (a + 1)) || ((((2 * y) + (6 * a)) + 10) == ((a * z) + (2 * z))))) && (0 <= a)) RESULT: Ultimate proved your program to be correct! [2023-12-21 05:51:18,334 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 0 Received shutdown request...