/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-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:13:10,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:13:10,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:13:10,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 20:13:10,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:13:10,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:13:10,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:13:10,479 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 [2022-10-15 20:13:10,544 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:13:10,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:13:10,546 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:13:10,546 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:13:10,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:13:10,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:13:10,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:13:10,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:13:10,552 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:13:10,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:13:10,554 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:13:10,554 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:13:10,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:13:10,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:13:10,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:13:10,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:13:10,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:13:10,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:13:10,556 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:13:10,556 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:13:10,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:13:10,556 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:13:10,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:13:10,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:13:10,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:13:10,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:13:10,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:13:10,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:13:10,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:13:10,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:13:10,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:13:10,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:13:10,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:13:10,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:13:10,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:13:11,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:13:11,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:13:11,016 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:13:11,017 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:13:11,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_partition_ground-2.i [2022-10-15 20:13:11,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f166ed61/f82edc1126aa4200a100c27b4fa82b28/FLAG9cf088aa8 [2022-10-15 20:13:11,762 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:13:11,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_ground-2.i [2022-10-15 20:13:11,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f166ed61/f82edc1126aa4200a100c27b4fa82b28/FLAG9cf088aa8 [2022-10-15 20:13:12,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f166ed61/f82edc1126aa4200a100c27b4fa82b28 [2022-10-15 20:13:12,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:13:12,165 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:13:12,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:13:12,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:13:12,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:13:12,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dac2279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12, skipping insertion in model container [2022-10-15 20:13:12,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:13:12,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:13:12,462 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-2.i[820,833] [2022-10-15 20:13:12,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:13:12,499 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:13:12,511 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-2.i[820,833] [2022-10-15 20:13:12,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:13:12,537 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:13:12,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12 WrapperNode [2022-10-15 20:13:12,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:13:12,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:13:12,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:13:12,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:13:12,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,584 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2022-10-15 20:13:12,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:13:12,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:13:12,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:13:12,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:13:12,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,613 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:13:12,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:13:12,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:13:12,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:13:12,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (1/1) ... [2022-10-15 20:13:12,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:13:12,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:12,673 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) [2022-10-15 20:13:12,701 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 [2022-10-15 20:13:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:13:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:13:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:13:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:13:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:13:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:13:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:13:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:13:12,866 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:13:12,870 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:13:13,091 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:13:13,099 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:13:13,100 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 20:13:13,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:13:13 BoogieIcfgContainer [2022-10-15 20:13:13,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:13:13,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:13:13,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:13:13,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:13:13,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:13:12" (1/3) ... [2022-10-15 20:13:13,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1b37bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:13:13, skipping insertion in model container [2022-10-15 20:13:13,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:12" (2/3) ... [2022-10-15 20:13:13,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e1b37bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:13:13, skipping insertion in model container [2022-10-15 20:13:13,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:13:13" (3/3) ... [2022-10-15 20:13:13,113 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_partition_ground-2.i [2022-10-15 20:13:13,137 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:13:13,137 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-15 20:13:13,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:13:13,309 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;@7ba992ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:13:13,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-15 20:13:13,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 42 states have internal predecessors, (53), 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) [2022-10-15 20:13:13,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 20:13:13,322 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:13,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 20:13:13,324 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:13,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:13,331 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-15 20:13:13,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:13,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528534599] [2022-10-15 20:13:13,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:13,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:13,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:13,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:13,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528534599] [2022-10-15 20:13:13,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528534599] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:13,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:13,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:13,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217311734] [2022-10-15 20:13:13,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:13,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:13,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:13,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:13,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:13,694 INFO L87 Difference]: Start difference. First operand has 43 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 42 states have internal predecessors, (53), 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-10-15 20:13:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:13,815 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2022-10-15 20:13:13,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:13,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2022-10-15 20:13:13,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:13,835 INFO L225 Difference]: With dead ends: 84 [2022-10-15 20:13:13,836 INFO L226 Difference]: Without dead ends: 42 [2022-10-15 20:13:13,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:13,854 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 3 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:13,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 128 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:13,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-15 20:13:13,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-15 20:13:13,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 41 states have internal predecessors, (47), 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) [2022-10-15 20:13:13,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-10-15 20:13:13,915 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 5 [2022-10-15 20:13:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:13,918 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-10-15 20:13:13,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-10-15 20:13:13,919 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-10-15 20:13:13,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:13:13,920 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:13,920 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-15 20:13:13,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:13:13,921 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)] === [2022-10-15 20:13:13,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:13,925 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-15 20:13:13,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:13,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333492958] [2022-10-15 20:13:13,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:13,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:14,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:14,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:14,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333492958] [2022-10-15 20:13:14,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333492958] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:14,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:14,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:14,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017046745] [2022-10-15 20:13:14,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:14,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:14,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:14,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:14,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:14,147 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-10-15 20:13:14,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:14,207 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2022-10-15 20:13:14,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:14,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2022-10-15 20:13:14,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:14,209 INFO L225 Difference]: With dead ends: 42 [2022-10-15 20:13:14,209 INFO L226 Difference]: Without dead ends: 41 [2022-10-15 20:13:14,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:14,217 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 5 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 108 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 [2022-10-15 20:13:14,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 108 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:14,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-15 20:13:14,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-10-15 20:13:14,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.5333333333333334) internal successors, (46), 40 states have internal predecessors, (46), 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) [2022-10-15 20:13:14,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2022-10-15 20:13:14,238 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 9 [2022-10-15 20:13:14,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:14,244 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2022-10-15 20:13:14,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2022-10-15 20:13:14,245 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2022-10-15 20:13:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:13:14,245 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:14,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:14,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:13:14,247 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:14,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:14,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1607300636, now seen corresponding path program 1 times [2022-10-15 20:13:14,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:14,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062529711] [2022-10-15 20:13:14,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:14,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:14,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:14,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:14,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062529711] [2022-10-15 20:13:14,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062529711] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:14,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491667297] [2022-10-15 20:13:14,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:14,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:14,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:14,458 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) [2022-10-15 20:13:14,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:13:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:14,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:14,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:14,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:14,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:14,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491667297] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:14,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:14,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:14,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789424282] [2022-10-15 20:13:14,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:14,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:14,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:14,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:14,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:14,570 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-10-15 20:13:14,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:14,616 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2022-10-15 20:13:14,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:14,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 [2022-10-15 20:13:14,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:14,618 INFO L225 Difference]: With dead ends: 78 [2022-10-15 20:13:14,618 INFO L226 Difference]: Without dead ends: 57 [2022-10-15 20:13:14,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:14,621 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:14,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 52 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:14,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-15 20:13:14,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2022-10-15 20:13:14,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.55) internal successors, (62), 50 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) [2022-10-15 20:13:14,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2022-10-15 20:13:14,632 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 10 [2022-10-15 20:13:14,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:14,633 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2022-10-15 20:13:14,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-10-15 20:13:14,633 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2022-10-15 20:13:14,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:13:14,634 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:14,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:14,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:14,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:14,851 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:14,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:14,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1607300443, now seen corresponding path program 1 times [2022-10-15 20:13:14,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:14,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279270685] [2022-10-15 20:13:14,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:14,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:14,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:14,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279270685] [2022-10-15 20:13:14,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279270685] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:14,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414094407] [2022-10-15 20:13:14,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:14,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:14,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:14,995 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) [2022-10-15 20:13:15,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:13:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:15,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:15,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:15,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:15,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:15,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414094407] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:15,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:15,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:15,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586378671] [2022-10-15 20:13:15,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:15,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:15,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:15,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:15,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:15,106 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-10-15 20:13:15,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:15,152 INFO L93 Difference]: Finished difference Result 86 states and 105 transitions. [2022-10-15 20:13:15,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:15,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 [2022-10-15 20:13:15,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:15,154 INFO L225 Difference]: With dead ends: 86 [2022-10-15 20:13:15,155 INFO L226 Difference]: Without dead ends: 85 [2022-10-15 20:13:15,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:15,157 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 31 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 66 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 [2022-10-15 20:13:15,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 66 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:15,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-15 20:13:15,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 57. [2022-10-15 20:13:15,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 56 states have internal predecessors, (71), 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) [2022-10-15 20:13:15,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2022-10-15 20:13:15,178 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 10 [2022-10-15 20:13:15,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:15,178 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2022-10-15 20:13:15,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-10-15 20:13:15,179 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2022-10-15 20:13:15,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:13:15,179 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:15,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:13:15,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:15,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-15 20:13:15,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:15,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:15,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-15 20:13:15,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:15,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911930326] [2022-10-15 20:13:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:15,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:15,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:15,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911930326] [2022-10-15 20:13:15,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911930326] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:15,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588075801] [2022-10-15 20:13:15,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:15,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:15,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:15,482 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) [2022-10-15 20:13:15,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 20:13:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:15,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:13:15,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:15,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:15,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:15,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588075801] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:15,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:15,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:13:15,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989941934] [2022-10-15 20:13:15,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:15,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:13:15,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:15,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:13:15,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:13:15,619 INFO L87 Difference]: Start difference. First operand 57 states and 71 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2022-10-15 20:13:15,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:15,664 INFO L93 Difference]: Finished difference Result 57 states and 71 transitions. [2022-10-15 20:13:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:13:15,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 [2022-10-15 20:13:15,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:15,666 INFO L225 Difference]: With dead ends: 57 [2022-10-15 20:13:15,666 INFO L226 Difference]: Without dead ends: 56 [2022-10-15 20:13:15,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:13:15,668 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 74 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:15,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 72 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:15,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-15 20:13:15,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 53. [2022-10-15 20:13:15,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 43 states have (on average 1.558139534883721) internal successors, (67), 52 states have internal predecessors, (67), 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) [2022-10-15 20:13:15,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2022-10-15 20:13:15,677 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 10 [2022-10-15 20:13:15,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:15,678 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2022-10-15 20:13:15,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2022-10-15 20:13:15,678 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2022-10-15 20:13:15,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 20:13:15,679 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:15,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:15,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:15,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:15,893 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:15,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:15,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1713287765, now seen corresponding path program 1 times [2022-10-15 20:13:15,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:15,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384128034] [2022-10-15 20:13:15,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:15,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:16,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:16,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:16,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384128034] [2022-10-15 20:13:16,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384128034] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:16,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598451960] [2022-10-15 20:13:16,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:16,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:16,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:16,027 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) [2022-10-15 20:13:16,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 20:13:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:16,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:16,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:16,136 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:16,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598451960] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:16,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:16,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:16,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10346571] [2022-10-15 20:13:16,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:16,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:16,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:16,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:16,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:16,144 INFO L87 Difference]: Start difference. First operand 53 states and 67 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) [2022-10-15 20:13:16,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:16,183 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2022-10-15 20:13:16,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:16,185 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 [2022-10-15 20:13:16,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:16,186 INFO L225 Difference]: With dead ends: 53 [2022-10-15 20:13:16,186 INFO L226 Difference]: Without dead ends: 51 [2022-10-15 20:13:16,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:16,192 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 26 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:16,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 28 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:16,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-15 20:13:16,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-10-15 20:13:16,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.4883720930232558) internal successors, (64), 50 states have internal predecessors, (64), 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) [2022-10-15 20:13:16,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2022-10-15 20:13:16,211 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 11 [2022-10-15 20:13:16,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:16,214 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2022-10-15 20:13:16,214 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) [2022-10-15 20:13:16,214 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2022-10-15 20:13:16,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 20:13:16,215 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:16,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:16,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:16,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:16,433 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:16,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:16,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1713293755, now seen corresponding path program 1 times [2022-10-15 20:13:16,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:16,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326165445] [2022-10-15 20:13:16,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:16,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:16,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:16,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:16,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326165445] [2022-10-15 20:13:16,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326165445] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:16,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198681339] [2022-10-15 20:13:16,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:16,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:16,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:16,490 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) [2022-10-15 20:13:16,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 20:13:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:16,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:16,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:16,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:16,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198681339] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:16,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:16,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:16,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9274344] [2022-10-15 20:13:16,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:16,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:16,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:16,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:16,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:16,575 INFO L87 Difference]: Start difference. First operand 51 states and 64 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) [2022-10-15 20:13:16,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:16,586 INFO L93 Difference]: Finished difference Result 51 states and 64 transitions. [2022-10-15 20:13:16,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:16,587 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 [2022-10-15 20:13:16,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:16,588 INFO L225 Difference]: With dead ends: 51 [2022-10-15 20:13:16,588 INFO L226 Difference]: Without dead ends: 50 [2022-10-15 20:13:16,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:16,589 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 27 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 34 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 [2022-10-15 20:13:16,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 34 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:16,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-15 20:13:16,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-10-15 20:13:16,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 43 states have (on average 1.441860465116279) internal successors, (62), 49 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) [2022-10-15 20:13:16,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2022-10-15 20:13:16,597 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 11 [2022-10-15 20:13:16,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:16,597 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2022-10-15 20:13:16,597 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) [2022-10-15 20:13:16,598 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2022-10-15 20:13:16,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 20:13:16,598 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:16,599 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:16,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:16,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:16,814 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:16,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:16,815 INFO L85 PathProgramCache]: Analyzing trace with hash 835595441, now seen corresponding path program 1 times [2022-10-15 20:13:16,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:16,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017575733] [2022-10-15 20:13:16,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:16,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:16,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:16,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017575733] [2022-10-15 20:13:16,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017575733] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:16,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859426884] [2022-10-15 20:13:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:16,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:16,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:16,866 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) [2022-10-15 20:13:16,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 20:13:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:16,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:16,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:16,980 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:13:16,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:16,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859426884] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:16,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:16,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:16,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522752067] [2022-10-15 20:13:16,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:16,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:16,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:16,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:16,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:16,983 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-10-15 20:13:17,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:17,010 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2022-10-15 20:13:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:17,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-10-15 20:13:17,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:17,011 INFO L225 Difference]: With dead ends: 50 [2022-10-15 20:13:17,011 INFO L226 Difference]: Without dead ends: 48 [2022-10-15 20:13:17,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:17,013 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 18 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:17,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 38 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:17,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-10-15 20:13:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 39. [2022-10-15 20:13:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 38 states have internal predecessors, (46), 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) [2022-10-15 20:13:17,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2022-10-15 20:13:17,019 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 14 [2022-10-15 20:13:17,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:17,019 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2022-10-15 20:13:17,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-10-15 20:13:17,019 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2022-10-15 20:13:17,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 20:13:17,020 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:17,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:17,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:17,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:17,236 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:17,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:17,237 INFO L85 PathProgramCache]: Analyzing trace with hash -153227273, now seen corresponding path program 1 times [2022-10-15 20:13:17,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:17,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468631639] [2022-10-15 20:13:17,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:17,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:17,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:17,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468631639] [2022-10-15 20:13:17,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468631639] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:17,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569218491] [2022-10-15 20:13:17,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:17,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:17,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:17,315 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) [2022-10-15 20:13:17,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 20:13:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:17,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:17,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:17,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 20:13:17,403 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:17,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569218491] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:17,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:17,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:13:17,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511975592] [2022-10-15 20:13:17,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:17,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:17,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:17,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:17,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:17,406 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-10-15 20:13:17,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:17,421 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2022-10-15 20:13:17,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:17,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-10-15 20:13:17,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:17,422 INFO L225 Difference]: With dead ends: 55 [2022-10-15 20:13:17,422 INFO L226 Difference]: Without dead ends: 54 [2022-10-15 20:13:17,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:13:17,423 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:17,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 47 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:17,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-15 20:13:17,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 44. [2022-10-15 20:13:17,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 39 states have (on average 1.358974358974359) internal successors, (53), 43 states have internal predecessors, (53), 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) [2022-10-15 20:13:17,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2022-10-15 20:13:17,430 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 16 [2022-10-15 20:13:17,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:17,430 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2022-10-15 20:13:17,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-10-15 20:13:17,431 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2022-10-15 20:13:17,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 20:13:17,431 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:17,431 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:17,459 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:17,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:17,646 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:17,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:17,647 INFO L85 PathProgramCache]: Analyzing trace with hash 169633396, now seen corresponding path program 1 times [2022-10-15 20:13:17,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:17,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976836041] [2022-10-15 20:13:17,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:17,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:17,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:17,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976836041] [2022-10-15 20:13:17,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976836041] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:17,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33195231] [2022-10-15 20:13:17,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:17,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:17,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:17,724 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) [2022-10-15 20:13:17,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 20:13:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:17,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:13:17,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:17,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:17,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:17,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:17,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33195231] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:17,843 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:17,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 20:13:17,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138669858] [2022-10-15 20:13:17,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:17,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 20:13:17,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:17,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 20:13:17,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:13:17,845 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:17,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:17,905 INFO L93 Difference]: Finished difference Result 89 states and 108 transitions. [2022-10-15 20:13:17,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 20:13:17,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-15 20:13:17,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:17,907 INFO L225 Difference]: With dead ends: 89 [2022-10-15 20:13:17,907 INFO L226 Difference]: Without dead ends: 52 [2022-10-15 20:13:17,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:13:17,909 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 9 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:17,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 185 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-15 20:13:17,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-10-15 20:13:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.297872340425532) internal successors, (61), 51 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) [2022-10-15 20:13:17,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2022-10-15 20:13:17,921 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 16 [2022-10-15 20:13:17,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:17,922 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2022-10-15 20:13:17,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:17,922 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2022-10-15 20:13:17,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 20:13:17,925 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:17,925 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:17,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:18,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-15 20:13:18,140 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:18,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:18,141 INFO L85 PathProgramCache]: Analyzing trace with hash -443688836, now seen corresponding path program 2 times [2022-10-15 20:13:18,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:18,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676913543] [2022-10-15 20:13:18,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:18,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:18,225 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:13:18,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:18,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676913543] [2022-10-15 20:13:18,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676913543] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:18,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528164294] [2022-10-15 20:13:18,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:13:18,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:18,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:18,227 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) [2022-10-15 20:13:18,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 20:13:18,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:13:18,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:18,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:13:18,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:18,402 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:18,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:18,504 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:18,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528164294] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:18,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:18,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 9, 9] total 18 [2022-10-15 20:13:18,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824364557] [2022-10-15 20:13:18,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:18,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 20:13:18,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:18,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 20:13:18,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-10-15 20:13:18,507 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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) [2022-10-15 20:13:18,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:18,742 INFO L93 Difference]: Finished difference Result 160 states and 192 transitions. [2022-10-15 20:13:18,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 20:13:18,743 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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 24 [2022-10-15 20:13:18,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:18,744 INFO L225 Difference]: With dead ends: 160 [2022-10-15 20:13:18,745 INFO L226 Difference]: Without dead ends: 123 [2022-10-15 20:13:18,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=654, Unknown=0, NotChecked=0, Total=930 [2022-10-15 20:13:18,747 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 127 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:18,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 237 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:18,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-15 20:13:18,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 74. [2022-10-15 20:13:18,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 69 states have (on average 1.2318840579710144) internal successors, (85), 73 states have internal predecessors, (85), 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) [2022-10-15 20:13:18,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2022-10-15 20:13:18,757 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 24 [2022-10-15 20:13:18,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:18,757 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2022-10-15 20:13:18,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 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) [2022-10-15 20:13:18,758 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2022-10-15 20:13:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-15 20:13:18,759 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:18,759 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:18,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:18,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:18,974 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:18,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:18,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1310256084, now seen corresponding path program 1 times [2022-10-15 20:13:18,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:18,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351151292] [2022-10-15 20:13:18,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:18,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-15 20:13:19,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:19,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351151292] [2022-10-15 20:13:19,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351151292] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:19,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818937826] [2022-10-15 20:13:19,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:19,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:19,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:19,087 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) [2022-10-15 20:13:19,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 20:13:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:19,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:13:19,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:19,241 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-15 20:13:19,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:19,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818937826] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:19,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:19,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-15 20:13:19,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191857450] [2022-10-15 20:13:19,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:19,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:13:19,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:19,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:13:19,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:19,244 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-10-15 20:13:19,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:19,255 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2022-10-15 20:13:19,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:13:19,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 41 [2022-10-15 20:13:19,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:19,256 INFO L225 Difference]: With dead ends: 74 [2022-10-15 20:13:19,256 INFO L226 Difference]: Without dead ends: 73 [2022-10-15 20:13:19,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:19,257 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:19,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:19,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-15 20:13:19,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-10-15 20:13:19,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.2173913043478262) internal successors, (84), 72 states have internal predecessors, (84), 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) [2022-10-15 20:13:19,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2022-10-15 20:13:19,268 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 41 [2022-10-15 20:13:19,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:19,269 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2022-10-15 20:13:19,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-10-15 20:13:19,269 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2022-10-15 20:13:19,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-15 20:13:19,271 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:19,271 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:19,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:19,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-15 20:13:19,486 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:19,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:19,487 INFO L85 PathProgramCache]: Analyzing trace with hash -672052664, now seen corresponding path program 1 times [2022-10-15 20:13:19,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:19,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609382583] [2022-10-15 20:13:19,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:19,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-10-15 20:13:19,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:19,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609382583] [2022-10-15 20:13:19,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609382583] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:19,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840464194] [2022-10-15 20:13:19,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:19,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:19,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:19,579 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) [2022-10-15 20:13:19,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 20:13:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:19,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 20:13:19,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:13:19,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:20,201 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:13:20,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840464194] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:20,201 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:20,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 17, 17] total 34 [2022-10-15 20:13:20,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525589068] [2022-10-15 20:13:20,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:20,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-15 20:13:20,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:20,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-15 20:13:20,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=845, Unknown=0, NotChecked=0, Total=1122 [2022-10-15 20:13:20,205 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 34 states, 34 states have (on average 2.5) internal successors, (85), 34 states have internal predecessors, (85), 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) [2022-10-15 20:13:20,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:20,810 INFO L93 Difference]: Finished difference Result 187 states and 226 transitions. [2022-10-15 20:13:20,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-15 20:13:20,810 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.5) internal successors, (85), 34 states have internal predecessors, (85), 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 46 [2022-10-15 20:13:20,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:20,812 INFO L225 Difference]: With dead ends: 187 [2022-10-15 20:13:20,812 INFO L226 Difference]: Without dead ends: 145 [2022-10-15 20:13:20,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1068, Invalid=2838, Unknown=0, NotChecked=0, Total=3906 [2022-10-15 20:13:20,815 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 207 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:20,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 201 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:13:20,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-10-15 20:13:20,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 123. [2022-10-15 20:13:20,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 119 states have (on average 1.1428571428571428) internal successors, (136), 122 states have internal predecessors, (136), 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) [2022-10-15 20:13:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2022-10-15 20:13:20,828 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 46 [2022-10-15 20:13:20,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:20,829 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2022-10-15 20:13:20,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.5) internal successors, (85), 34 states have internal predecessors, (85), 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) [2022-10-15 20:13:20,829 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2022-10-15 20:13:20,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-15 20:13:20,832 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:20,832 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:13:20,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-15 20:13:21,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-15 20:13:21,046 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:21,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:21,047 INFO L85 PathProgramCache]: Analyzing trace with hash 832294149, now seen corresponding path program 3 times [2022-10-15 20:13:21,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:21,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72456009] [2022-10-15 20:13:21,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:21,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:21,206 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:13:21,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:21,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72456009] [2022-10-15 20:13:21,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72456009] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:21,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388124182] [2022-10-15 20:13:21,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:13:21,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:21,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:21,208 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) [2022-10-15 20:13:21,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-15 20:13:21,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-15 20:13:21,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:21,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:13:21,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:13:21,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:21,522 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:13:21,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388124182] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:21,523 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:21,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-15 20:13:21,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822609079] [2022-10-15 20:13:21,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:21,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 20:13:21,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:21,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 20:13:21,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:13:21,525 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 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) [2022-10-15 20:13:21,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:21,600 INFO L93 Difference]: Finished difference Result 340 states and 394 transitions. [2022-10-15 20:13:21,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 20:13:21,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 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 78 [2022-10-15 20:13:21,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:21,603 INFO L225 Difference]: With dead ends: 340 [2022-10-15 20:13:21,603 INFO L226 Difference]: Without dead ends: 339 [2022-10-15 20:13:21,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:13:21,605 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 280 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:21,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 172 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:21,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-10-15 20:13:21,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 147. [2022-10-15 20:13:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 143 states have (on average 1.1748251748251748) internal successors, (168), 146 states have internal predecessors, (168), 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) [2022-10-15 20:13:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 168 transitions. [2022-10-15 20:13:21,620 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 168 transitions. Word has length 78 [2022-10-15 20:13:21,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:21,621 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 168 transitions. [2022-10-15 20:13:21,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 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) [2022-10-15 20:13:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 168 transitions. [2022-10-15 20:13:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-15 20:13:21,622 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:21,623 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:21,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:21,836 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,SelfDestructingSolverStorable13 [2022-10-15 20:13:21,836 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:21,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:21,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2111795843, now seen corresponding path program 2 times [2022-10-15 20:13:21,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:21,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072117009] [2022-10-15 20:13:21,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:21,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-10-15 20:13:22,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:22,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072117009] [2022-10-15 20:13:22,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072117009] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:22,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690636242] [2022-10-15 20:13:22,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:13:22,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:22,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:22,063 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) [2022-10-15 20:13:22,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-15 20:13:22,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:13:22,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:22,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-15 20:13:22,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:22,644 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 20:13:22,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 20:13:23,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690636242] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:23,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:23,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 33, 33] total 66 [2022-10-15 20:13:23,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859537980] [2022-10-15 20:13:23,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:23,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-10-15 20:13:23,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:23,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-10-15 20:13:23,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1061, Invalid=3229, Unknown=0, NotChecked=0, Total=4290 [2022-10-15 20:13:23,667 INFO L87 Difference]: Start difference. First operand 147 states and 168 transitions. Second operand has 66 states, 66 states have (on average 2.409090909090909) internal successors, (159), 66 states have internal predecessors, (159), 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) [2022-10-15 20:13:25,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:25,464 INFO L93 Difference]: Finished difference Result 320 states and 380 transitions. [2022-10-15 20:13:25,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-10-15 20:13:25,464 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.409090909090909) internal successors, (159), 66 states have internal predecessors, (159), 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 82 [2022-10-15 20:13:25,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:25,468 INFO L225 Difference]: With dead ends: 320 [2022-10-15 20:13:25,468 INFO L226 Difference]: Without dead ends: 236 [2022-10-15 20:13:25,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4157 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4188, Invalid=11814, Unknown=0, NotChecked=0, Total=16002 [2022-10-15 20:13:25,477 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 388 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:25,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 244 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:13:25,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-10-15 20:13:25,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 217. [2022-10-15 20:13:25,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 213 states have (on average 1.1267605633802817) internal successors, (240), 216 states have internal predecessors, (240), 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) [2022-10-15 20:13:25,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 240 transitions. [2022-10-15 20:13:25,495 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 240 transitions. Word has length 82 [2022-10-15 20:13:25,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:25,495 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 240 transitions. [2022-10-15 20:13:25,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.409090909090909) internal successors, (159), 66 states have internal predecessors, (159), 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) [2022-10-15 20:13:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 240 transitions. [2022-10-15 20:13:25,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-10-15 20:13:25,498 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:25,498 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:25,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-10-15 20:13:25,712 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,SelfDestructingSolverStorable14 [2022-10-15 20:13:25,712 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:25,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:25,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1223413622, now seen corresponding path program 3 times [2022-10-15 20:13:25,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:25,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803729457] [2022-10-15 20:13:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:25,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:25,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1909 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1903 trivial. 0 not checked. [2022-10-15 20:13:25,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:25,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803729457] [2022-10-15 20:13:25,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803729457] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:25,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125788151] [2022-10-15 20:13:25,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:13:25,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:25,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:25,959 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) [2022-10-15 20:13:25,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-15 20:13:26,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-15 20:13:26,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:26,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:13:26,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:26,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1909 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1903 trivial. 0 not checked. [2022-10-15 20:13:26,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:26,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1909 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1903 trivial. 0 not checked. [2022-10-15 20:13:26,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125788151] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:26,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:26,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-15 20:13:26,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607726922] [2022-10-15 20:13:26,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:26,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 20:13:26,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:26,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 20:13:26,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:13:26,423 INFO L87 Difference]: Start difference. First operand 217 states and 240 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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) [2022-10-15 20:13:26,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:26,514 INFO L93 Difference]: Finished difference Result 420 states and 505 transitions. [2022-10-15 20:13:26,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 20:13:26,515 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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 152 [2022-10-15 20:13:26,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:26,518 INFO L225 Difference]: With dead ends: 420 [2022-10-15 20:13:26,518 INFO L226 Difference]: Without dead ends: 382 [2022-10-15 20:13:26,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-10-15 20:13:26,519 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 120 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:26,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 95 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:26,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2022-10-15 20:13:26,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 379. [2022-10-15 20:13:26,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 375 states have (on average 1.1466666666666667) internal successors, (430), 378 states have internal predecessors, (430), 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) [2022-10-15 20:13:26,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 430 transitions. [2022-10-15 20:13:26,546 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 430 transitions. Word has length 152 [2022-10-15 20:13:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:26,546 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 430 transitions. [2022-10-15 20:13:26,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 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) [2022-10-15 20:13:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 430 transitions. [2022-10-15 20:13:26,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-15 20:13:26,549 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:26,549 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1] [2022-10-15 20:13:26,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-10-15 20:13:26,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:26,764 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:26,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:26,765 INFO L85 PathProgramCache]: Analyzing trace with hash -675206359, now seen corresponding path program 4 times [2022-10-15 20:13:26,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:26,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984340821] [2022-10-15 20:13:26,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:26,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:27,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1999 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2022-10-15 20:13:27,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:27,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984340821] [2022-10-15 20:13:27,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984340821] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:27,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252566608] [2022-10-15 20:13:27,241 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 20:13:27,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:27,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:27,243 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) [2022-10-15 20:13:27,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-15 20:13:27,505 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 20:13:27,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:27,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-15 20:13:27,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1999 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-15 20:13:29,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:33,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1999 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-10-15 20:13:33,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252566608] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:33,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:33,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 65, 65] total 135 [2022-10-15 20:13:33,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647447155] [2022-10-15 20:13:33,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:33,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 135 states [2022-10-15 20:13:33,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:33,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2022-10-15 20:13:33,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4195, Invalid=13895, Unknown=0, NotChecked=0, Total=18090 [2022-10-15 20:13:33,352 INFO L87 Difference]: Start difference. First operand 379 states and 430 transitions. Second operand has 135 states, 135 states have (on average 2.259259259259259) internal successors, (305), 135 states have internal predecessors, (305), 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) [2022-10-15 20:13:40,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:40,300 INFO L93 Difference]: Finished difference Result 1494 states and 1777 transitions. [2022-10-15 20:13:40,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-10-15 20:13:40,301 INFO L78 Accepts]: Start accepts. Automaton has has 135 states, 135 states have (on average 2.259259259259259) internal successors, (305), 135 states have internal predecessors, (305), 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 166 [2022-10-15 20:13:40,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:40,308 INFO L225 Difference]: With dead ends: 1494 [2022-10-15 20:13:40,308 INFO L226 Difference]: Without dead ends: 1242 [2022-10-15 20:13:40,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18395 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=17227, Invalid=50113, Unknown=0, NotChecked=0, Total=67340 [2022-10-15 20:13:40,327 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 2067 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2067 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:40,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2067 Valid, 470 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 20:13:40,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-10-15 20:13:40,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 513. [2022-10-15 20:13:40,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 509 states have (on average 1.111984282907662) internal successors, (566), 512 states have internal predecessors, (566), 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) [2022-10-15 20:13:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 566 transitions. [2022-10-15 20:13:40,415 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 566 transitions. Word has length 166 [2022-10-15 20:13:40,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:40,416 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 566 transitions. [2022-10-15 20:13:40,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 135 states, 135 states have (on average 2.259259259259259) internal successors, (305), 135 states have internal predecessors, (305), 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) [2022-10-15 20:13:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 566 transitions. [2022-10-15 20:13:40,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-10-15 20:13:40,420 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:40,420 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 6, 6, 6, 6, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:40,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:40,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-15 20:13:40,634 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:13:40,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:40,635 INFO L85 PathProgramCache]: Analyzing trace with hash 845526090, now seen corresponding path program 4 times [2022-10-15 20:13:40,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:40,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684751258] [2022-10-15 20:13:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:40,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 7953 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 7887 trivial. 0 not checked. [2022-10-15 20:13:41,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:41,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684751258] [2022-10-15 20:13:41,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684751258] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:41,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988579601] [2022-10-15 20:13:41,300 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 20:13:41,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:41,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:41,301 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:13:41,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-15 20:13:41,572 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 20:13:41,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:41,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-15 20:13:41,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 7953 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-10-15 20:13:47,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:14:02,915 INFO L134 CoverageAnalysis]: Checked inductivity of 7953 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-10-15 20:14:02,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988579601] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:14:02,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:14:02,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 129, 129] total 263 [2022-10-15 20:14:02,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064735011] [2022-10-15 20:14:02,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:14:02,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 263 states [2022-10-15 20:14:02,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:14:02,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 263 interpolants. [2022-10-15 20:14:02,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16547, Invalid=52359, Unknown=0, NotChecked=0, Total=68906 [2022-10-15 20:14:02,930 INFO L87 Difference]: Start difference. First operand 513 states and 566 transitions. Second operand has 263 states, 263 states have (on average 2.102661596958175) internal successors, (553), 263 states have internal predecessors, (553), 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)