/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-examples/standard_partition_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:16:46,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:16:46,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:16:46,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:16:46,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:16:46,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:16:46,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:16:46,651 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:16:46,709 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:16:46,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:16:46,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:16:46,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:16:46,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:16:46,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:16:46,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:16:46,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:16:46,715 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:16:46,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:16:46,716 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:16:46,716 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:16:46,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:16:46,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:16:46,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:16:46,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:16:46,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:16:46,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:16:46,718 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:16:46,718 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:16:46,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:16:46,718 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:16:46,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:16:46,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:16:46,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:16:46,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:16:46,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:16:46,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:16:46,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:16:46,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:16:46,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:16:46,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:16:46,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:16:46,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:16:47,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:16:47,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:16:47,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:16:47,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:16:47,168 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:16:47,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_partition_ground-1.i [2022-10-16 10:16:47,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae851bac/fd221a78e685490c964f0aee8d41b6de/FLAG112b443cd [2022-10-16 10:16:47,860 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:16:47,862 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_ground-1.i [2022-10-16 10:16:47,871 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae851bac/fd221a78e685490c964f0aee8d41b6de/FLAG112b443cd [2022-10-16 10:16:48,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ae851bac/fd221a78e685490c964f0aee8d41b6de [2022-10-16 10:16:48,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:16:48,233 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:16:48,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:16:48,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:16:48,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:16:48,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70516bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48, skipping insertion in model container [2022-10-16 10:16:48,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:16:48,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:16:48,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_ground-1.i[860,873] [2022-10-16 10:16:48,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:16:48,554 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:16:48,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_ground-1.i[860,873] [2022-10-16 10:16:48,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:16:48,595 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:16:48,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48 WrapperNode [2022-10-16 10:16:48,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:16:48,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:16:48,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:16:48,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:16:48,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,640 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 94 [2022-10-16 10:16:48,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:16:48,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:16:48,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:16:48,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:16:48,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,666 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:16:48,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:16:48,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:16:48,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:16:48,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (1/1) ... [2022-10-16 10:16:48,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:16:48,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:48,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:16:48,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:16:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:16:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:16:48,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:16:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:16:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:16:48,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:16:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:16:48,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-16 10:16:48,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-16 10:16:48,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:16:48,849 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:16:48,852 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:16:49,152 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:16:49,167 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:16:49,170 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 10:16:49,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:16:49 BoogieIcfgContainer [2022-10-16 10:16:49,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:16:49,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:16:49,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:16:49,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:16:49,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:16:48" (1/3) ... [2022-10-16 10:16:49,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa882d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:16:49, skipping insertion in model container [2022-10-16 10:16:49,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:16:48" (2/3) ... [2022-10-16 10:16:49,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa882d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:16:49, skipping insertion in model container [2022-10-16 10:16:49,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:16:49" (3/3) ... [2022-10-16 10:16:49,201 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_partition_ground-1.i [2022-10-16 10:16:49,227 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:16:49,227 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 10:16:49,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:16:49,388 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@45d7488c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:16:49,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 10:16:49,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 46 states have internal predecessors, (57), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:49,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 10:16:49,410 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:49,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 10:16:49,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:49,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:49,421 INFO L85 PathProgramCache]: Analyzing trace with hash 28699946, now seen corresponding path program 1 times [2022-10-16 10:16:49,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:49,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587281423] [2022-10-16 10:16:49,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:49,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:49,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:49,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587281423] [2022-10-16 10:16:49,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587281423] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:49,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:16:49,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:16:49,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138618851] [2022-10-16 10:16:49,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:49,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:49,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:49,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:49,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:49,880 INFO L87 Difference]: Start difference. First operand has 50 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 46 states have internal predecessors, (57), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-16 10:16:49,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:49,984 INFO L93 Difference]: Finished difference Result 106 states and 135 transitions. [2022-10-16 10:16:49,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:49,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2022-10-16 10:16:49,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:49,997 INFO L225 Difference]: With dead ends: 106 [2022-10-16 10:16:49,997 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 10:16:50,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:50,006 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 14 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:50,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 88 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:16:50,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 10:16:50,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2022-10-16 10:16:50,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 42 states have (on average 1.5476190476190477) internal successors, (65), 53 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:50,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2022-10-16 10:16:50,059 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 5 [2022-10-16 10:16:50,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:50,059 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2022-10-16 10:16:50,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-16 10:16:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2022-10-16 10:16:50,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 10:16:50,061 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:50,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 10:16:50,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:16:50,062 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:50,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:50,063 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2022-10-16 10:16:50,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:50,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551978591] [2022-10-16 10:16:50,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:50,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:50,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:50,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:50,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551978591] [2022-10-16 10:16:50,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551978591] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:50,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:16:50,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:16:50,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416019566] [2022-10-16 10:16:50,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:50,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:50,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:50,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:50,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:50,143 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-16 10:16:50,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:50,185 INFO L93 Difference]: Finished difference Result 104 states and 126 transitions. [2022-10-16 10:16:50,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:50,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2022-10-16 10:16:50,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:50,188 INFO L225 Difference]: With dead ends: 104 [2022-10-16 10:16:50,188 INFO L226 Difference]: Without dead ends: 102 [2022-10-16 10:16:50,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:50,191 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 37 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:50,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 91 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:50,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-10-16 10:16:50,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 65. [2022-10-16 10:16:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.5) internal successors, (75), 61 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:50,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2022-10-16 10:16:50,207 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 5 [2022-10-16 10:16:50,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:50,211 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2022-10-16 10:16:50,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-10-16 10:16:50,212 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2022-10-16 10:16:50,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:16:50,212 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:50,213 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:16:50,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:16:50,213 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:50,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:50,216 INFO L85 PathProgramCache]: Analyzing trace with hash 761325759, now seen corresponding path program 1 times [2022-10-16 10:16:50,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:50,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664188975] [2022-10-16 10:16:50,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:50,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:16:50,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:50,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664188975] [2022-10-16 10:16:50,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664188975] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:50,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:16:50,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:16:50,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205437360] [2022-10-16 10:16:50,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:50,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:50,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:50,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:50,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:50,352 INFO L87 Difference]: Start difference. First operand 65 states and 79 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-10-16 10:16:50,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:50,406 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2022-10-16 10:16:50,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:50,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2022-10-16 10:16:50,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:50,410 INFO L225 Difference]: With dead ends: 65 [2022-10-16 10:16:50,411 INFO L226 Difference]: Without dead ends: 63 [2022-10-16 10:16:50,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:16:50,413 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:50,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 64 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:50,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-16 10:16:50,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-16 10:16:50,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.44) internal successors, (72), 59 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:50,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 76 transitions. [2022-10-16 10:16:50,435 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 76 transitions. Word has length 9 [2022-10-16 10:16:50,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:50,435 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 76 transitions. [2022-10-16 10:16:50,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-10-16 10:16:50,436 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 76 transitions. [2022-10-16 10:16:50,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:16:50,437 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:50,437 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:16:50,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 10:16:50,437 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:50,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:50,438 INFO L85 PathProgramCache]: Analyzing trace with hash 2126262104, now seen corresponding path program 1 times [2022-10-16 10:16:50,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:50,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565101154] [2022-10-16 10:16:50,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:50,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:50,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:50,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565101154] [2022-10-16 10:16:50,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565101154] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:50,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846411247] [2022-10-16 10:16:50,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:50,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:50,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:50,623 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) [2022-10-16 10:16:50,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:16:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:50,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:16:50,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:50,804 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:50,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:50,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846411247] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:50,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:50,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 10:16:50,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176590691] [2022-10-16 10:16:50,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:50,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:16:50,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:50,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:16:50,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:50,808 INFO L87 Difference]: Start difference. First operand 63 states and 76 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-10-16 10:16:50,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:50,865 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2022-10-16 10:16:50,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:16:50,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) Word has length 10 [2022-10-16 10:16:50,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:50,867 INFO L225 Difference]: With dead ends: 65 [2022-10-16 10:16:50,867 INFO L226 Difference]: Without dead ends: 63 [2022-10-16 10:16:50,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:50,869 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 64 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:50,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 59 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:50,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-16 10:16:50,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 49. [2022-10-16 10:16:50,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 38 states have (on average 1.394736842105263) internal successors, (53), 45 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2022-10-16 10:16:50,879 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 10 [2022-10-16 10:16:50,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:50,880 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2022-10-16 10:16:50,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-10-16 10:16:50,880 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2022-10-16 10:16:50,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:16:50,881 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:50,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:50,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:51,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:51,096 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:51,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:51,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1488051845, now seen corresponding path program 1 times [2022-10-16 10:16:51,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:51,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153731787] [2022-10-16 10:16:51,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:51,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:51,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:51,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153731787] [2022-10-16 10:16:51,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153731787] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:51,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729263682] [2022-10-16 10:16:51,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:51,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:51,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:51,186 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) [2022-10-16 10:16:51,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:16:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:51,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:16:51,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:16:51,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:51,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729263682] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:51,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:51,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:16:51,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644721760] [2022-10-16 10:16:51,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:51,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:51,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:51,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:51,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:51,305 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-16 10:16:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:51,329 INFO L93 Difference]: Finished difference Result 74 states and 88 transitions. [2022-10-16 10:16:51,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:51,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) Word has length 11 [2022-10-16 10:16:51,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:51,331 INFO L225 Difference]: With dead ends: 74 [2022-10-16 10:16:51,331 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 10:16:51,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:51,334 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 28 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:51,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 73 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:51,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 10:16:51,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2022-10-16 10:16:51,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.3953488372093024) internal successors, (60), 50 states have internal predecessors, (60), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:51,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2022-10-16 10:16:51,360 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 11 [2022-10-16 10:16:51,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:51,361 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2022-10-16 10:16:51,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-10-16 10:16:51,363 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2022-10-16 10:16:51,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:16:51,363 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:51,364 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:51,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:51,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:51,578 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:51,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:51,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1810912514, now seen corresponding path program 1 times [2022-10-16 10:16:51,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:51,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932223759] [2022-10-16 10:16:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:51,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:51,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:51,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:51,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932223759] [2022-10-16 10:16:51,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932223759] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:51,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204895060] [2022-10-16 10:16:51,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:51,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:51,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:51,670 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) [2022-10-16 10:16:51,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:16:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:51,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:16:51,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:51,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:51,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:51,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204895060] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:51,819 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:51,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 10:16:51,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112081949] [2022-10-16 10:16:51,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:51,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 10:16:51,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:51,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 10:16:51,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:16:51,822 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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) [2022-10-16 10:16:51,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:51,915 INFO L93 Difference]: Finished difference Result 204 states and 252 transitions. [2022-10-16 10:16:51,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:16:51,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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) Word has length 11 [2022-10-16 10:16:51,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:51,918 INFO L225 Difference]: With dead ends: 204 [2022-10-16 10:16:51,919 INFO L226 Difference]: Without dead ends: 203 [2022-10-16 10:16:51,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:16:51,921 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 184 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:51,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 250 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:16:51,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-10-16 10:16:51,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 71. [2022-10-16 10:16:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 67 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:51,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 89 transitions. [2022-10-16 10:16:51,939 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 89 transitions. Word has length 11 [2022-10-16 10:16:51,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:51,939 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 89 transitions. [2022-10-16 10:16:51,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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) [2022-10-16 10:16:51,940 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 89 transitions. [2022-10-16 10:16:51,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:16:51,941 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:51,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:51,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:52,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:52,155 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:52,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:52,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1115032986, now seen corresponding path program 1 times [2022-10-16 10:16:52,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:52,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056344573] [2022-10-16 10:16:52,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:52,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:52,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:52,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056344573] [2022-10-16 10:16:52,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056344573] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:52,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495286641] [2022-10-16 10:16:52,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:52,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:52,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:52,227 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) [2022-10-16 10:16:52,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:16:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:52,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:16:52,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:52,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:16:52,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:52,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495286641] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:52,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:52,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 10:16:52,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935144993] [2022-10-16 10:16:52,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:52,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:16:52,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:52,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:16:52,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:52,320 INFO L87 Difference]: Start difference. First operand 71 states and 89 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:52,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:52,335 INFO L93 Difference]: Finished difference Result 71 states and 89 transitions. [2022-10-16 10:16:52,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:16:52,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 10:16:52,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:52,337 INFO L225 Difference]: With dead ends: 71 [2022-10-16 10:16:52,338 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 10:16:52,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:52,339 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 27 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:52,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 47 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:52,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 10:16:52,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-10-16 10:16:52,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 60 states have (on average 1.4) internal successors, (84), 66 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:52,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2022-10-16 10:16:52,352 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 12 [2022-10-16 10:16:52,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:52,353 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2022-10-16 10:16:52,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:52,353 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2022-10-16 10:16:52,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:16:52,354 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:52,354 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:52,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:52,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:52,568 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:52,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:52,569 INFO L85 PathProgramCache]: Analyzing trace with hash 303713134, now seen corresponding path program 1 times [2022-10-16 10:16:52,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:52,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671667777] [2022-10-16 10:16:52,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:52,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:52,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:52,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:52,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671667777] [2022-10-16 10:16:52,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671667777] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:52,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510103798] [2022-10-16 10:16:52,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:52,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:52,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:52,683 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) [2022-10-16 10:16:52,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:16:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:52,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:16:52,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:52,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:52,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:16:52,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510103798] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:16:52,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:16:52,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 10:16:52,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255734554] [2022-10-16 10:16:52,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:16:52,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:16:52,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:52,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:16:52,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:52,810 INFO L87 Difference]: Start difference. First operand 70 states and 88 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:52,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:52,853 INFO L93 Difference]: Finished difference Result 102 states and 127 transitions. [2022-10-16 10:16:52,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:16:52,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 10:16:52,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:52,855 INFO L225 Difference]: With dead ends: 102 [2022-10-16 10:16:52,855 INFO L226 Difference]: Without dead ends: 101 [2022-10-16 10:16:52,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:16:52,857 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 68 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:52,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 105 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:16:52,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-16 10:16:52,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 69. [2022-10-16 10:16:52,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.35) internal successors, (81), 65 states have internal predecessors, (81), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:52,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2022-10-16 10:16:52,876 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 12 [2022-10-16 10:16:52,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:52,877 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2022-10-16 10:16:52,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:16:52,877 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2022-10-16 10:16:52,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 10:16:52,879 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:52,879 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:52,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:53,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:53,095 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:53,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:53,096 INFO L85 PathProgramCache]: Analyzing trace with hash -143047618, now seen corresponding path program 1 times [2022-10-16 10:16:53,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:53,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486957758] [2022-10-16 10:16:53,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:53,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:53,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:53,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:53,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486957758] [2022-10-16 10:16:53,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486957758] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:53,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040652490] [2022-10-16 10:16:53,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:53,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:53,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:53,175 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) [2022-10-16 10:16:53,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:16:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:53,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:16:53,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:53,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:53,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:53,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:53,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040652490] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:53,273 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:53,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-16 10:16:53,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194090033] [2022-10-16 10:16:53,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:53,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 10:16:53,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:53,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 10:16:53,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:16:53,275 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2022-10-16 10:16:53,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:53,352 INFO L93 Difference]: Finished difference Result 183 states and 231 transitions. [2022-10-16 10:16:53,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:16:53,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) Word has length 17 [2022-10-16 10:16:53,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:53,354 INFO L225 Difference]: With dead ends: 183 [2022-10-16 10:16:53,354 INFO L226 Difference]: Without dead ends: 147 [2022-10-16 10:16:53,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:16:53,355 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 70 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:53,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 135 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:16:53,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-10-16 10:16:53,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2022-10-16 10:16:53,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 136 states have (on average 1.25) internal successors, (170), 141 states have internal predecessors, (170), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:53,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 174 transitions. [2022-10-16 10:16:53,373 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 174 transitions. Word has length 17 [2022-10-16 10:16:53,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:53,374 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 174 transitions. [2022-10-16 10:16:53,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2022-10-16 10:16:53,374 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 174 transitions. [2022-10-16 10:16:53,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:16:53,376 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:53,376 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:16:53,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:53,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:53,590 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:53,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:53,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1432361213, now seen corresponding path program 2 times [2022-10-16 10:16:53,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:53,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215206461] [2022-10-16 10:16:53,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:53,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:53,672 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 10:16:53,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:53,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215206461] [2022-10-16 10:16:53,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215206461] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:53,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066885728] [2022-10-16 10:16:53,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:16:53,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:53,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:53,675 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) [2022-10-16 10:16:53,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:16:53,759 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:16:53,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:16:53,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 10:16:53,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:53,817 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:53,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:53,914 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:16:53,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066885728] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:53,914 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:53,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-10-16 10:16:53,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688245272] [2022-10-16 10:16:53,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:53,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:16:53,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:53,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:16:53,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:16:53,916 INFO L87 Difference]: Start difference. First operand 145 states and 174 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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) [2022-10-16 10:16:54,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:54,440 INFO L93 Difference]: Finished difference Result 558 states and 711 transitions. [2022-10-16 10:16:54,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 10:16:54,441 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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) Word has length 29 [2022-10-16 10:16:54,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:54,444 INFO L225 Difference]: With dead ends: 558 [2022-10-16 10:16:54,445 INFO L226 Difference]: Without dead ends: 491 [2022-10-16 10:16:54,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=396, Invalid=726, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:16:54,447 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 569 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:54,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 203 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:16:54,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-10-16 10:16:54,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 435. [2022-10-16 10:16:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 426 states have (on average 1.2206572769953052) internal successors, (520), 431 states have internal predecessors, (520), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:54,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 524 transitions. [2022-10-16 10:16:54,498 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 524 transitions. Word has length 29 [2022-10-16 10:16:54,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:54,498 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 524 transitions. [2022-10-16 10:16:54,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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) [2022-10-16 10:16:54,499 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 524 transitions. [2022-10-16 10:16:54,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:16:54,500 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:54,501 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1] [2022-10-16 10:16:54,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:54,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:54,709 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:54,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:54,711 INFO L85 PathProgramCache]: Analyzing trace with hash -993507763, now seen corresponding path program 2 times [2022-10-16 10:16:54,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:54,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885651047] [2022-10-16 10:16:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:54,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:54,835 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:54,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:54,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885651047] [2022-10-16 10:16:54,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885651047] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:54,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381703595] [2022-10-16 10:16:54,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:16:54,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:54,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:54,837 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) [2022-10-16 10:16:54,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:16:54,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:16:54,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:16:54,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 10:16:54,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:54,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:55,055 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:55,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381703595] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:55,056 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:55,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-10-16 10:16:55,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670168780] [2022-10-16 10:16:55,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:55,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 10:16:55,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:55,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 10:16:55,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 10:16:55,058 INFO L87 Difference]: Start difference. First operand 435 states and 524 transitions. Second operand has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 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) [2022-10-16 10:16:55,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:55,402 INFO L93 Difference]: Finished difference Result 2362 states and 2888 transitions. [2022-10-16 10:16:55,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:16:55,402 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 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) Word has length 29 [2022-10-16 10:16:55,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:55,415 INFO L225 Difference]: With dead ends: 2362 [2022-10-16 10:16:55,415 INFO L226 Difference]: Without dead ends: 2361 [2022-10-16 10:16:55,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-10-16 10:16:55,419 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 871 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:55,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 398 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:16:55,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2361 states. [2022-10-16 10:16:55,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2361 to 551. [2022-10-16 10:16:55,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 542 states have (on average 1.2047970479704797) internal successors, (653), 547 states have internal predecessors, (653), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:55,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 657 transitions. [2022-10-16 10:16:55,488 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 657 transitions. Word has length 29 [2022-10-16 10:16:55,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:55,488 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 657 transitions. [2022-10-16 10:16:55,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 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) [2022-10-16 10:16:55,489 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 657 transitions. [2022-10-16 10:16:55,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 10:16:55,493 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:55,493 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:16:55,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:55,707 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,SelfDestructingSolverStorable10 [2022-10-16 10:16:55,708 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:55,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:55,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1855863756, now seen corresponding path program 3 times [2022-10-16 10:16:55,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:55,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850367976] [2022-10-16 10:16:55,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:55,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:56,078 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 10:16:56,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:56,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850367976] [2022-10-16 10:16:56,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850367976] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:56,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050873520] [2022-10-16 10:16:56,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:16:56,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:56,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:56,081 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) [2022-10-16 10:16:56,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:16:56,173 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:16:56,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:16:56,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:16:56,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 10:16:56,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:56,385 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-10-16 10:16:56,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050873520] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:56,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:56,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 19 [2022-10-16 10:16:56,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521254268] [2022-10-16 10:16:56,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:56,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 10:16:56,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:56,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 10:16:56,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:16:56,388 INFO L87 Difference]: Start difference. First operand 551 states and 657 transitions. Second operand has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 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) [2022-10-16 10:16:57,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:16:57,923 INFO L93 Difference]: Finished difference Result 1190 states and 1459 transitions. [2022-10-16 10:16:57,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-10-16 10:16:57,924 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 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) Word has length 59 [2022-10-16 10:16:57,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:16:57,930 INFO L225 Difference]: With dead ends: 1190 [2022-10-16 10:16:57,930 INFO L226 Difference]: Without dead ends: 1005 [2022-10-16 10:16:57,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1607 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1794, Invalid=3756, Unknown=0, NotChecked=0, Total=5550 [2022-10-16 10:16:57,936 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 1281 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:16:57,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 412 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:16:57,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2022-10-16 10:16:58,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 803. [2022-10-16 10:16:58,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 794 states have (on average 1.190176322418136) internal successors, (945), 799 states have internal predecessors, (945), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:16:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 949 transitions. [2022-10-16 10:16:58,007 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 949 transitions. Word has length 59 [2022-10-16 10:16:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:16:58,007 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 949 transitions. [2022-10-16 10:16:58,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 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) [2022-10-16 10:16:58,008 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 949 transitions. [2022-10-16 10:16:58,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 10:16:58,010 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:16:58,010 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1] [2022-10-16 10:16:58,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:16:58,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:58,224 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:16:58,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:16:58,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1771109725, now seen corresponding path program 3 times [2022-10-16 10:16:58,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:16:58,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690628398] [2022-10-16 10:16:58,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:16:58,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:16:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:16:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:58,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:16:58,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690628398] [2022-10-16 10:16:58,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690628398] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:16:58,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26284071] [2022-10-16 10:16:58,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:16:58,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:16:58,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:16:58,542 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) [2022-10-16 10:16:58,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:16:59,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 10:16:59,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:16:59,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:16:59,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:16:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:59,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:16:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:16:59,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26284071] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:16:59,802 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:16:59,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-10-16 10:16:59,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704469338] [2022-10-16 10:16:59,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:16:59,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 10:16:59,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:16:59,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 10:16:59,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:16:59,804 INFO L87 Difference]: Start difference. First operand 803 states and 949 transitions. Second operand has 25 states, 24 states have (on average 5.583333333333333) internal successors, (134), 25 states have internal predecessors, (134), 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) [2022-10-16 10:17:01,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:01,079 INFO L93 Difference]: Finished difference Result 9016 states and 10737 transitions. [2022-10-16 10:17:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 10:17:01,080 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.583333333333333) internal successors, (134), 25 states have internal predecessors, (134), 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) Word has length 65 [2022-10-16 10:17:01,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:01,130 INFO L225 Difference]: With dead ends: 9016 [2022-10-16 10:17:01,130 INFO L226 Difference]: Without dead ends: 9015 [2022-10-16 10:17:01,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:17:01,134 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 1369 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:01,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1413 Valid, 940 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:17:01,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9015 states. [2022-10-16 10:17:01,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9015 to 875. [2022-10-16 10:17:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 866 states have (on average 1.202078521939954) internal successors, (1041), 871 states have internal predecessors, (1041), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:17:01,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1045 transitions. [2022-10-16 10:17:01,331 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1045 transitions. Word has length 65 [2022-10-16 10:17:01,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:01,331 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1045 transitions. [2022-10-16 10:17:01,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.583333333333333) internal successors, (134), 25 states have internal predecessors, (134), 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) [2022-10-16 10:17:01,331 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1045 transitions. [2022-10-16 10:17:01,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 10:17:01,333 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:01,334 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:17:01,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 10:17:01,548 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,SelfDestructingSolverStorable12 [2022-10-16 10:17:01,549 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:17:01,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:01,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1151135635, now seen corresponding path program 4 times [2022-10-16 10:17:01,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:01,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473197110] [2022-10-16 10:17:01,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:01,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 10:17:01,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:01,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473197110] [2022-10-16 10:17:01,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473197110] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:01,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979368193] [2022-10-16 10:17:01,946 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:17:01,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:01,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:01,949 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) [2022-10-16 10:17:01,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 10:17:02,094 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:17:02,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:17:02,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 10:17:02,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:02,193 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 10:17:02,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:02,465 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 10:17:02,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979368193] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:02,466 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:02,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-10-16 10:17:02,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650651989] [2022-10-16 10:17:02,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:02,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 10:17:02,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:02,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 10:17:02,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:17:02,469 INFO L87 Difference]: Start difference. First operand 875 states and 1045 transitions. Second operand has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 27 states have internal predecessors, (106), 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) [2022-10-16 10:17:03,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:03,035 INFO L93 Difference]: Finished difference Result 3161 states and 4032 transitions. [2022-10-16 10:17:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:17:03,037 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 27 states have internal predecessors, (106), 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) Word has length 87 [2022-10-16 10:17:03,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:03,051 INFO L225 Difference]: With dead ends: 3161 [2022-10-16 10:17:03,051 INFO L226 Difference]: Without dead ends: 2787 [2022-10-16 10:17:03,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:17:03,055 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 683 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:03,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 299 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:17:03,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2022-10-16 10:17:03,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2769. [2022-10-16 10:17:03,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2760 states have (on average 1.1815217391304347) internal successors, (3261), 2765 states have internal predecessors, (3261), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:17:03,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3265 transitions. [2022-10-16 10:17:03,307 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3265 transitions. Word has length 87 [2022-10-16 10:17:03,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:03,308 INFO L495 AbstractCegarLoop]: Abstraction has 2769 states and 3265 transitions. [2022-10-16 10:17:03,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.925925925925926) internal successors, (106), 27 states have internal predecessors, (106), 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) [2022-10-16 10:17:03,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3265 transitions. [2022-10-16 10:17:03,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-10-16 10:17:03,317 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:03,317 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1] [2022-10-16 10:17:03,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:17:03,532 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,SelfDestructingSolverStorable13 [2022-10-16 10:17:03,533 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:17:03,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:03,534 INFO L85 PathProgramCache]: Analyzing trace with hash 504570447, now seen corresponding path program 4 times [2022-10-16 10:17:03,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:03,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380200305] [2022-10-16 10:17:03,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:03,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:04,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:17:04,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:04,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380200305] [2022-10-16 10:17:04,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380200305] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:04,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94826640] [2022-10-16 10:17:04,726 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:17:04,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:04,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:04,727 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:17:04,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 10:17:04,970 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:17:04,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:17:04,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 10:17:04,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:05,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:17:05,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:17:06,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94826640] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:06,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:06,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2022-10-16 10:17:06,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899485714] [2022-10-16 10:17:06,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:06,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-16 10:17:06,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:06,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-16 10:17:06,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 10:17:06,054 INFO L87 Difference]: Start difference. First operand 2769 states and 3265 transitions. Second operand has 49 states, 48 states have (on average 5.791666666666667) internal successors, (278), 49 states have internal predecessors, (278), 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) [2022-10-16 10:17:11,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:11,820 INFO L93 Difference]: Finished difference Result 44456 states and 53027 transitions. [2022-10-16 10:17:11,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-16 10:17:11,821 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 5.791666666666667) internal successors, (278), 49 states have internal predecessors, (278), 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) Word has length 137 [2022-10-16 10:17:11,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:11,975 INFO L225 Difference]: With dead ends: 44456 [2022-10-16 10:17:11,975 INFO L226 Difference]: Without dead ends: 44455 [2022-10-16 10:17:11,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 10:17:11,989 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 3226 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3318 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:11,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3318 Valid, 1926 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:17:12,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44455 states. [2022-10-16 10:17:12,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44455 to 2917. [2022-10-16 10:17:12,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2908 states have (on average 1.188445667125172) internal successors, (3456), 2913 states have internal predecessors, (3456), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:17:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 3460 transitions. [2022-10-16 10:17:12,731 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 3460 transitions. Word has length 137 [2022-10-16 10:17:12,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:12,732 INFO L495 AbstractCegarLoop]: Abstraction has 2917 states and 3460 transitions. [2022-10-16 10:17:12,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 5.791666666666667) internal successors, (278), 49 states have internal predecessors, (278), 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) [2022-10-16 10:17:12,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 3460 transitions. [2022-10-16 10:17:12,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-10-16 10:17:12,743 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:12,743 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:17:12,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:17:12,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:17:12,957 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:17:12,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:12,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1172518466, now seen corresponding path program 5 times [2022-10-16 10:17:12,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:12,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704895365] [2022-10-16 10:17:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:12,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 10:17:14,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:14,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704895365] [2022-10-16 10:17:14,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704895365] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:14,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297948460] [2022-10-16 10:17:14,210 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:17:14,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:14,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:14,211 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:17:14,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:17:24,973 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2022-10-16 10:17:24,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:17:24,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 10:17:24,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:25,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 10:17:25,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:26,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 10:17:26,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297948460] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:26,044 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:26,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2022-10-16 10:17:26,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149581069] [2022-10-16 10:17:26,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:26,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-10-16 10:17:26,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:26,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-10-16 10:17:26,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:17:26,049 INFO L87 Difference]: Start difference. First operand 2917 states and 3460 transitions. Second operand has 53 states, 53 states have (on average 3.9622641509433962) internal successors, (210), 53 states have internal predecessors, (210), 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) [2022-10-16 10:17:27,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:17:27,810 INFO L93 Difference]: Finished difference Result 10678 states and 13656 transitions. [2022-10-16 10:17:27,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 10:17:27,810 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.9622641509433962) internal successors, (210), 53 states have internal predecessors, (210), 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) Word has length 139 [2022-10-16 10:17:27,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:17:27,831 INFO L225 Difference]: With dead ends: 10678 [2022-10-16 10:17:27,832 INFO L226 Difference]: Without dead ends: 9771 [2022-10-16 10:17:27,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:17:27,837 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 2271 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:17:27,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2271 Valid, 458 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:17:27,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9771 states. [2022-10-16 10:17:28,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9771 to 9725. [2022-10-16 10:17:28,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9725 states, 9716 states have (on average 1.1754837381638534) internal successors, (11421), 9721 states have internal predecessors, (11421), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:17:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9725 states to 9725 states and 11425 transitions. [2022-10-16 10:17:28,656 INFO L78 Accepts]: Start accepts. Automaton has 9725 states and 11425 transitions. Word has length 139 [2022-10-16 10:17:28,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:17:28,657 INFO L495 AbstractCegarLoop]: Abstraction has 9725 states and 11425 transitions. [2022-10-16 10:17:28,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.9622641509433962) internal successors, (210), 53 states have internal predecessors, (210), 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) [2022-10-16 10:17:28,657 INFO L276 IsEmpty]: Start isEmpty. Operand 9725 states and 11425 transitions. [2022-10-16 10:17:28,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-10-16 10:17:28,675 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:17:28,675 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 50, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 10:17:28,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 10:17:28,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 10:17:28,889 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:17:28,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:17:28,890 INFO L85 PathProgramCache]: Analyzing trace with hash 77428960, now seen corresponding path program 6 times [2022-10-16 10:17:28,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:17:28,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256329267] [2022-10-16 10:17:28,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:17:28,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:17:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:17:32,244 INFO L134 CoverageAnalysis]: Checked inductivity of 5058 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-16 10:17:32,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:17:32,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256329267] [2022-10-16 10:17:32,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256329267] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:17:32,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245830517] [2022-10-16 10:17:32,245 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 10:17:32,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:17:32,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:17:32,247 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:17:32,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 10:17:33,371 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2022-10-16 10:17:33,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:17:33,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:17:33,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:17:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 5058 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 4950 trivial. 0 not checked. [2022-10-16 10:17:33,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:17:34,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5058 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 4950 trivial. 0 not checked. [2022-10-16 10:17:34,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245830517] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:17:34,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:17:34,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 8, 8] total 67 [2022-10-16 10:17:34,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389470405] [2022-10-16 10:17:34,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:17:34,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 10:17:34,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:17:34,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 10:17:34,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1497, Invalid=2925, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:17:34,436 INFO L87 Difference]: Start difference. First operand 9725 states and 11425 transitions. Second operand has 67 states, 67 states have (on average 4.522388059701493) internal successors, (303), 67 states have internal predecessors, (303), 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) [2022-10-16 10:19:08,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:19:08,250 INFO L93 Difference]: Finished difference Result 14598 states and 17525 transitions. [2022-10-16 10:19:08,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 690 states. [2022-10-16 10:19:08,251 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 4.522388059701493) internal successors, (303), 67 states have internal predecessors, (303), 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) Word has length 243 [2022-10-16 10:19:08,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:19:08,278 INFO L225 Difference]: With dead ends: 14598 [2022-10-16 10:19:08,278 INFO L226 Difference]: Without dead ends: 12625 [2022-10-16 10:19:08,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1173 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 701 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203235 ImplicationChecksByTransitivity, 74.1s TimeCoverageRelationStatistics Valid=141934, Invalid=351572, Unknown=0, NotChecked=0, Total=493506 [2022-10-16 10:19:08,348 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 15691 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 4977 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15719 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 5673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4977 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:19:08,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15719 Valid, 835 Invalid, 5673 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4977 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-10-16 10:19:08,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12625 states. [2022-10-16 10:19:09,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12625 to 12023. [2022-10-16 10:19:09,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12023 states, 12014 states have (on average 1.1735475278841352) internal successors, (14099), 12019 states have internal predecessors, (14099), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 10:19:09,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12023 states to 12023 states and 14103 transitions. [2022-10-16 10:19:09,483 INFO L78 Accepts]: Start accepts. Automaton has 12023 states and 14103 transitions. Word has length 243 [2022-10-16 10:19:09,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:19:09,484 INFO L495 AbstractCegarLoop]: Abstraction has 12023 states and 14103 transitions. [2022-10-16 10:19:09,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 4.522388059701493) internal successors, (303), 67 states have internal predecessors, (303), 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) [2022-10-16 10:19:09,484 INFO L276 IsEmpty]: Start isEmpty. Operand 12023 states and 14103 transitions. [2022-10-16 10:19:09,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-10-16 10:19:09,506 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:19:09,506 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 1, 1, 1] [2022-10-16 10:19:09,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 10:19:09,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:19:09,721 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:19:09,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:19:09,722 INFO L85 PathProgramCache]: Analyzing trace with hash -617611865, now seen corresponding path program 5 times [2022-10-16 10:19:09,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:19:09,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858227421] [2022-10-16 10:19:09,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:19:09,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:19:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:19:12,854 INFO L134 CoverageAnalysis]: Checked inductivity of 6348 backedges. 0 proven. 6348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:19:12,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:19:12,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858227421] [2022-10-16 10:19:12,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858227421] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:19:12,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059157615] [2022-10-16 10:19:12,855 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:19:12,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:19:12,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:19:12,857 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:19:12,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process