/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_copy6_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:11:36,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:11:36,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:11:36,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 20:11:36,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:11:36,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:11:36,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:11:36,842 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 20:11:36,894 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:11:36,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:11:36,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:11:36,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:11:36,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:11:36,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:11:36,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:11:36,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:11:36,898 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:11:36,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:11:36,899 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:11:36,899 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:11:36,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:11:36,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:11:36,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:11:36,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:11:36,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:11:36,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:11:36,901 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:11:36,901 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:11:36,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:11:36,901 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:11:36,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:11:36,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:11:36,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:11:36,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:11:36,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:11:36,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:11:36,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:11:36,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:11:36,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:11:36,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:11:36,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:11:36,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:11:37,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:11:37,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:11:37,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:11:37,300 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:11:37,301 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:11:37,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copy6_ground-2.i [2022-10-15 20:11:37,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e1151c34/2333526627fa4100b57b8bd9cddfdefd/FLAG5c0d8378e [2022-10-15 20:11:37,952 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:11:37,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy6_ground-2.i [2022-10-15 20:11:37,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e1151c34/2333526627fa4100b57b8bd9cddfdefd/FLAG5c0d8378e [2022-10-15 20:11:38,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e1151c34/2333526627fa4100b57b8bd9cddfdefd [2022-10-15 20:11:38,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:11:38,315 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:11:38,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:11:38,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:11:38,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:11:38,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789723f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38, skipping insertion in model container [2022-10-15 20:11:38,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:11:38,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:11:38,507 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_copy6_ground-2.i[816,829] [2022-10-15 20:11:38,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:11:38,548 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:11:38,563 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_copy6_ground-2.i[816,829] [2022-10-15 20:11:38,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:11:38,595 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:11:38,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38 WrapperNode [2022-10-15 20:11:38,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:11:38,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:11:38,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:11:38,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:11:38,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,646 INFO L138 Inliner]: procedures = 16, calls = 43, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 160 [2022-10-15 20:11:38,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:11:38,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:11:38,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:11:38,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:11:38,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,678 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:11:38,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:11:38,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:11:38,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:11:38,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (1/1) ... [2022-10-15 20:11:38,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:11:38,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:38,725 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 20:11:38,748 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 20:11:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:11:38,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:11:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:11:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:11:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:11:38,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:11:38,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:11:38,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:11:38,893 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:11:38,897 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:11:39,297 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:11:39,330 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:11:39,331 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-10-15 20:11:39,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:11:39 BoogieIcfgContainer [2022-10-15 20:11:39,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:11:39,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:11:39,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:11:39,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:11:39,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:11:38" (1/3) ... [2022-10-15 20:11:39,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7294cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:11:39, skipping insertion in model container [2022-10-15 20:11:39,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:38" (2/3) ... [2022-10-15 20:11:39,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7294cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:11:39, skipping insertion in model container [2022-10-15 20:11:39,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:11:39" (3/3) ... [2022-10-15 20:11:39,351 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy6_ground-2.i [2022-10-15 20:11:39,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:11:39,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-15 20:11:39,438 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:11:39,447 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;@66bc1a29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:11:39,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-15 20:11:39,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 47 states have (on average 1.702127659574468) internal successors, (80), 63 states have internal predecessors, (80), 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 20:11:39,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 20:11:39,461 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:39,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 20:11:39,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:39,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:39,469 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-15 20:11:39,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:39,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908335405] [2022-10-15 20:11:39,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:39,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:39,912 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 20:11:39,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:39,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908335405] [2022-10-15 20:11:39,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908335405] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:39,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:39,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:11:39,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122856785] [2022-10-15 20:11:39,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:39,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:39,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:39,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:39,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:11:39,963 INFO L87 Difference]: Start difference. First operand has 64 states, 47 states have (on average 1.702127659574468) internal successors, (80), 63 states have internal predecessors, (80), 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 20:11:40,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:40,042 INFO L93 Difference]: Finished difference Result 126 states and 158 transitions. [2022-10-15 20:11:40,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:40,045 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 20:11:40,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:40,056 INFO L225 Difference]: With dead ends: 126 [2022-10-15 20:11:40,056 INFO L226 Difference]: Without dead ends: 63 [2022-10-15 20:11:40,060 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 20:11:40,065 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 3 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:40,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 197 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:11:40,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-15 20:11:40,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-15 20:11:40,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.4893617021276595) internal successors, (70), 62 states have internal predecessors, (70), 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 20:11:40,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2022-10-15 20:11:40,110 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 5 [2022-10-15 20:11:40,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:40,111 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2022-10-15 20:11:40,112 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 20:11:40,112 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2022-10-15 20:11:40,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:11:40,113 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:40,113 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-15 20:11:40,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:11:40,114 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:40,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:40,115 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-15 20:11:40,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:40,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399026674] [2022-10-15 20:11:40,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:40,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:40,243 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 20:11:40,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:40,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399026674] [2022-10-15 20:11:40,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399026674] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:40,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:40,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:11:40,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272296071] [2022-10-15 20:11:40,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:40,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:40,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:40,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:40,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:11:40,248 INFO L87 Difference]: Start difference. First operand 63 states and 70 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 20:11:40,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:40,307 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2022-10-15 20:11:40,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:40,314 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 20:11:40,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:40,316 INFO L225 Difference]: With dead ends: 63 [2022-10-15 20:11:40,316 INFO L226 Difference]: Without dead ends: 62 [2022-10-15 20:11:40,317 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 20:11:40,319 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 5 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 177 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 20:11:40,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 177 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:11:40,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-15 20:11:40,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-15 20:11:40,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 61 states have internal predecessors, (69), 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 20:11:40,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2022-10-15 20:11:40,344 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 9 [2022-10-15 20:11:40,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:40,344 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2022-10-15 20:11:40,344 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 20:11:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2022-10-15 20:11:40,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:11:40,348 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:40,348 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:11:40,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:11:40,349 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:40,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:40,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-15 20:11:40,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:40,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185322815] [2022-10-15 20:11:40,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:40,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:40,536 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 20:11:40,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:40,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185322815] [2022-10-15 20:11:40,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185322815] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:40,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095634807] [2022-10-15 20:11:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:40,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:40,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:40,541 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 20:11:40,553 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 20:11:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:40,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:11:40,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:40,750 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 20:11:40,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:11:40,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095634807] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:40,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:11:40,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:11:40,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095669565] [2022-10-15 20:11:40,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:40,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:11:40,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:40,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:11:40,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:11:40,754 INFO L87 Difference]: Start difference. First operand 62 states and 69 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 20:11:40,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:40,811 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2022-10-15 20:11:40,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:11:40,812 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 20:11:40,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:40,814 INFO L225 Difference]: With dead ends: 62 [2022-10-15 20:11:40,814 INFO L226 Difference]: Without dead ends: 61 [2022-10-15 20:11:40,815 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 20:11:40,817 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 120 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 118 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 20:11:40,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 118 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:11:40,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-15 20:11:40,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2022-10-15 20:11:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 57 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2022-10-15 20:11:40,827 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 10 [2022-10-15 20:11:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:40,828 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2022-10-15 20:11:40,828 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 20:11:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-10-15 20:11:40,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 20:11:40,829 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:40,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:40,879 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 20:11:41,044 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 20:11:41,045 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:41,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:41,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1713504278, now seen corresponding path program 1 times [2022-10-15 20:11:41,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:41,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740644169] [2022-10-15 20:11:41,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:41,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:41,237 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 20:11:41,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:41,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740644169] [2022-10-15 20:11:41,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740644169] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:41,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081930011] [2022-10-15 20:11:41,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:41,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:41,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:41,240 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 20:11:41,260 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 20:11:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:41,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:11:41,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:41,383 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 20:11:41,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:11:41,423 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 20:11:41,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081930011] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:11:41,424 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:11:41,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 20:11:41,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810298200] [2022-10-15 20:11:41,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:11:41,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 20:11:41,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:41,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 20:11:41,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:11:41,428 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 20:11:41,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:41,487 INFO L93 Difference]: Finished difference Result 117 states and 132 transitions. [2022-10-15 20:11:41,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 20:11:41,488 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 20:11:41,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:41,489 INFO L225 Difference]: With dead ends: 117 [2022-10-15 20:11:41,489 INFO L226 Difference]: Without dead ends: 66 [2022-10-15 20:11:41,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 20:11:41,492 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 13 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:41,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 354 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:11:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-15 20:11:41,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-10-15 20:11:41,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 65 states have internal predecessors, (73), 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 20:11:41,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2022-10-15 20:11:41,503 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 11 [2022-10-15 20:11:41,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:41,503 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2022-10-15 20:11:41,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 20:11:41,504 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2022-10-15 20:11:41,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 20:11:41,505 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:41,505 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:41,548 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 20:11:41,720 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 20:11:41,721 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:41,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:41,723 INFO L85 PathProgramCache]: Analyzing trace with hash -230725406, now seen corresponding path program 2 times [2022-10-15 20:11:41,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:41,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722572247] [2022-10-15 20:11:41,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:41,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:41,845 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:11:41,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:41,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722572247] [2022-10-15 20:11:41,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722572247] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:41,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:41,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:11:41,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129887574] [2022-10-15 20:11:41,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:41,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:41,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:41,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:41,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:11:41,858 INFO L87 Difference]: Start difference. First operand 66 states and 73 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 20:11:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:41,956 INFO L93 Difference]: Finished difference Result 146 states and 164 transitions. [2022-10-15 20:11:41,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:41,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 19 [2022-10-15 20:11:41,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:41,958 INFO L225 Difference]: With dead ends: 146 [2022-10-15 20:11:41,958 INFO L226 Difference]: Without dead ends: 100 [2022-10-15 20:11:41,959 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 20:11:41,961 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 28 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:41,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 130 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:41,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-15 20:11:41,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 75. [2022-10-15 20:11:41,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.3442622950819672) internal successors, (82), 74 states have internal predecessors, (82), 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 20:11:41,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2022-10-15 20:11:41,973 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 19 [2022-10-15 20:11:41,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:41,973 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2022-10-15 20:11:41,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 20:11:41,974 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2022-10-15 20:11:41,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 20:11:41,975 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:41,975 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:41,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 20:11:41,975 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:41,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:41,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2133188386, now seen corresponding path program 1 times [2022-10-15 20:11:41,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:41,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834385451] [2022-10-15 20:11:41,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:41,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:42,081 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 20:11:42,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:42,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834385451] [2022-10-15 20:11:42,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834385451] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:42,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:42,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:11:42,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606574756] [2022-10-15 20:11:42,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:42,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:42,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:42,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:42,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:11:42,086 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 20:11:42,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:42,160 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2022-10-15 20:11:42,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:42,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 23 [2022-10-15 20:11:42,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:42,162 INFO L225 Difference]: With dead ends: 75 [2022-10-15 20:11:42,162 INFO L226 Difference]: Without dead ends: 74 [2022-10-15 20:11:42,163 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 20:11:42,164 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 30 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:42,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 110 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:42,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-15 20:11:42,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-10-15 20:11:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 73 states have internal predecessors, (81), 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 20:11:42,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2022-10-15 20:11:42,174 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 23 [2022-10-15 20:11:42,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:42,175 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2022-10-15 20:11:42,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 20:11:42,175 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2022-10-15 20:11:42,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 20:11:42,176 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:42,177 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:42,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 20:11:42,177 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:42,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:42,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1704330462, now seen corresponding path program 1 times [2022-10-15 20:11:42,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:42,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690318887] [2022-10-15 20:11:42,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:42,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:11:42,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:42,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690318887] [2022-10-15 20:11:42,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690318887] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:42,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582542678] [2022-10-15 20:11:42,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:42,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:42,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:42,338 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 20:11:42,346 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 20:11:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:42,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:11:42,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:42,495 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:11:42,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:11:42,601 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:11:42,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582542678] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:11:42,602 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:11:42,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-15 20:11:42,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652850663] [2022-10-15 20:11:42,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:11:42,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 20:11:42,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:42,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 20:11:42,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-15 20:11:42,609 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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 20:11:42,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:42,773 INFO L93 Difference]: Finished difference Result 149 states and 166 transitions. [2022-10-15 20:11:42,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 20:11:42,774 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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 20:11:42,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:42,775 INFO L225 Difference]: With dead ends: 149 [2022-10-15 20:11:42,775 INFO L226 Difference]: Without dead ends: 90 [2022-10-15 20:11:42,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-10-15 20:11:42,777 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 37 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:42,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 348 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:42,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-15 20:11:42,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-10-15 20:11:42,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 77 states have (on average 1.2597402597402598) internal successors, (97), 89 states have internal predecessors, (97), 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 20:11:42,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2022-10-15 20:11:42,790 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 24 [2022-10-15 20:11:42,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:42,790 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2022-10-15 20:11:42,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 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 20:11:42,791 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2022-10-15 20:11:42,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 20:11:42,792 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:42,792 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:42,833 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 20:11:43,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:43,006 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:43,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:43,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1811331278, now seen corresponding path program 2 times [2022-10-15 20:11:43,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:43,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835206961] [2022-10-15 20:11:43,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:43,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:43,429 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 20:11:43,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:43,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835206961] [2022-10-15 20:11:43,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835206961] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:43,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680040661] [2022-10-15 20:11:43,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:11:43,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:43,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:43,435 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 20:11:43,437 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 20:11:43,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:11:43,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:11:43,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 20:11:43,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:43,667 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 20:11:43,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:11:43,966 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 20:11:43,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680040661] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:11:43,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:11:43,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-15 20:11:43,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621986430] [2022-10-15 20:11:43,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:11:43,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-15 20:11:43,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:43,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-15 20:11:43,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-15 20:11:43,972 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 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 20:11:44,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:44,279 INFO L93 Difference]: Finished difference Result 181 states and 202 transitions. [2022-10-15 20:11:44,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-15 20:11:44,280 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 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 40 [2022-10-15 20:11:44,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:44,281 INFO L225 Difference]: With dead ends: 181 [2022-10-15 20:11:44,281 INFO L226 Difference]: Without dead ends: 122 [2022-10-15 20:11:44,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-10-15 20:11:44,284 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 95 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:44,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 405 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:44,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-15 20:11:44,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-10-15 20:11:44,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 109 states have (on average 1.18348623853211) internal successors, (129), 121 states have internal predecessors, (129), 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 20:11:44,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 129 transitions. [2022-10-15 20:11:44,295 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 129 transitions. Word has length 40 [2022-10-15 20:11:44,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:44,295 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 129 transitions. [2022-10-15 20:11:44,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 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 20:11:44,296 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 129 transitions. [2022-10-15 20:11:44,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 20:11:44,298 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:44,298 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:44,340 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 20:11:44,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:44,513 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:44,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:44,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1894154414, now seen corresponding path program 3 times [2022-10-15 20:11:44,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:44,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987676768] [2022-10-15 20:11:44,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:44,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:11:45,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:45,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987676768] [2022-10-15 20:11:45,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987676768] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:45,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409421133] [2022-10-15 20:11:45,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:11:45,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:45,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:45,739 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 20:11:45,760 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 20:11:45,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 20:11:45,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:11:45,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:11:45,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:45,905 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:11:45,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:11:45,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409421133] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:45,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:11:45,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2022-10-15 20:11:45,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291537503] [2022-10-15 20:11:45,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:45,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:45,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:45,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:45,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-10-15 20:11:45,909 INFO L87 Difference]: Start difference. First operand 122 states and 129 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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 20:11:45,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:45,996 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2022-10-15 20:11:45,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:45,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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 72 [2022-10-15 20:11:45,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:45,999 INFO L225 Difference]: With dead ends: 122 [2022-10-15 20:11:45,999 INFO L226 Difference]: Without dead ends: 121 [2022-10-15 20:11:46,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-10-15 20:11:46,001 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 42 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:46,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 89 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:46,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-10-15 20:11:46,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2022-10-15 20:11:46,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 106 states have (on average 1.179245283018868) internal successors, (125), 117 states have internal predecessors, (125), 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 20:11:46,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 125 transitions. [2022-10-15 20:11:46,012 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 125 transitions. Word has length 72 [2022-10-15 20:11:46,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:46,012 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 125 transitions. [2022-10-15 20:11:46,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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 20:11:46,013 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 125 transitions. [2022-10-15 20:11:46,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 20:11:46,015 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:46,015 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:46,054 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 20:11:46,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:46,230 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:46,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:46,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1409160564, now seen corresponding path program 1 times [2022-10-15 20:11:46,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:46,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369307590] [2022-10-15 20:11:46,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:46,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:11:46,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:46,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369307590] [2022-10-15 20:11:46,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369307590] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:46,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877770397] [2022-10-15 20:11:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:46,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:46,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:46,454 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 20:11:46,462 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 20:11:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:46,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-15 20:11:46,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:47,248 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:11:47,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:11:48,445 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:11:48,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877770397] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:11:48,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:11:48,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2022-10-15 20:11:48,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385152522] [2022-10-15 20:11:48,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:11:48,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-15 20:11:48,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:48,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-15 20:11:48,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2022-10-15 20:11:48,457 INFO L87 Difference]: Start difference. First operand 118 states and 125 transitions. Second operand has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 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 20:11:49,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:49,801 INFO L93 Difference]: Finished difference Result 269 states and 299 transitions. [2022-10-15 20:11:49,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-10-15 20:11:49,802 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 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 73 [2022-10-15 20:11:49,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:49,807 INFO L225 Difference]: With dead ends: 269 [2022-10-15 20:11:49,807 INFO L226 Difference]: Without dead ends: 214 [2022-10-15 20:11:49,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2022-10-15 20:11:49,814 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 228 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:49,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 779 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 20:11:49,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-10-15 20:11:49,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 186. [2022-10-15 20:11:49,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 174 states have (on average 1.1091954022988506) internal successors, (193), 185 states have internal predecessors, (193), 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 20:11:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 193 transitions. [2022-10-15 20:11:49,843 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 193 transitions. Word has length 73 [2022-10-15 20:11:49,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:49,846 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 193 transitions. [2022-10-15 20:11:49,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 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 20:11:49,847 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 193 transitions. [2022-10-15 20:11:49,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-15 20:11:49,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:49,860 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:49,903 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 20:11:50,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:50,076 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:50,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:50,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1254469680, now seen corresponding path program 2 times [2022-10-15 20:11:50,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:50,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254635074] [2022-10-15 20:11:50,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:50,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2022-10-15 20:11:50,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:50,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254635074] [2022-10-15 20:11:50,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254635074] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:50,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:50,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:11:50,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38751952] [2022-10-15 20:11:50,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:50,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:50,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:50,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:50,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:11:50,307 INFO L87 Difference]: Start difference. First operand 186 states and 193 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 20:11:50,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:50,384 INFO L93 Difference]: Finished difference Result 211 states and 218 transitions. [2022-10-15 20:11:50,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:50,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 141 [2022-10-15 20:11:50,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:50,386 INFO L225 Difference]: With dead ends: 211 [2022-10-15 20:11:50,387 INFO L226 Difference]: Without dead ends: 209 [2022-10-15 20:11:50,387 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 20:11:50,388 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 26 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:50,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 124 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:50,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-10-15 20:11:50,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 189. [2022-10-15 20:11:50,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 177 states have (on average 1.1073446327683616) internal successors, (196), 188 states have internal predecessors, (196), 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 20:11:50,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 196 transitions. [2022-10-15 20:11:50,401 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 196 transitions. Word has length 141 [2022-10-15 20:11:50,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:50,401 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 196 transitions. [2022-10-15 20:11:50,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 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 20:11:50,402 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 196 transitions. [2022-10-15 20:11:50,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-15 20:11:50,403 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:50,404 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:50,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 20:11:50,404 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:50,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:50,405 INFO L85 PathProgramCache]: Analyzing trace with hash 322471340, now seen corresponding path program 1 times [2022-10-15 20:11:50,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:50,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348144821] [2022-10-15 20:11:50,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:50,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2022-10-15 20:11:50,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:50,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348144821] [2022-10-15 20:11:50,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348144821] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:50,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:50,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:11:50,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943554018] [2022-10-15 20:11:50,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:50,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:50,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:50,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:50,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:11:50,593 INFO L87 Difference]: Start difference. First operand 189 states and 196 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 20:11:50,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:50,661 INFO L93 Difference]: Finished difference Result 189 states and 196 transitions. [2022-10-15 20:11:50,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:50,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 145 [2022-10-15 20:11:50,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:50,663 INFO L225 Difference]: With dead ends: 189 [2022-10-15 20:11:50,664 INFO L226 Difference]: Without dead ends: 188 [2022-10-15 20:11:50,664 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 20:11:50,665 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 28 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:50,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 106 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-10-15 20:11:50,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-10-15 20:11:50,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 177 states have (on average 1.1016949152542372) internal successors, (195), 187 states have internal predecessors, (195), 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 20:11:50,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 195 transitions. [2022-10-15 20:11:50,676 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 195 transitions. Word has length 145 [2022-10-15 20:11:50,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:50,676 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 195 transitions. [2022-10-15 20:11:50,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 20:11:50,677 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 195 transitions. [2022-10-15 20:11:50,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-15 20:11:50,678 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:50,678 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:50,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 20:11:50,679 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:11:50,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:50,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1406677030, now seen corresponding path program 1 times [2022-10-15 20:11:50,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:50,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700498114] [2022-10-15 20:11:50,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:50,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:54,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 20:11:54,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:54,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700498114] [2022-10-15 20:11:54,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700498114] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:54,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456968782] [2022-10-15 20:11:54,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:54,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:54,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:54,155 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 20:11:54,174 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 20:11:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:54,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-15 20:11:54,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:54,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 20:11:54,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:11:58,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 20:11:58,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456968782] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:11:58,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:11:58,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-15 20:11:58,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168428287] [2022-10-15 20:11:58,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:11:58,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-15 20:11:58,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:58,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-15 20:11:58,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-15 20:11:58,352 INFO L87 Difference]: Start difference. First operand 188 states and 195 transitions. Second operand has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 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 20:12:01,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:01,867 INFO L93 Difference]: Finished difference Result 377 states and 422 transitions. [2022-10-15 20:12:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-10-15 20:12:01,868 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 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 146 [2022-10-15 20:12:01,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:01,871 INFO L225 Difference]: With dead ends: 377 [2022-10-15 20:12:01,871 INFO L226 Difference]: Without dead ends: 316 [2022-10-15 20:12:01,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-15 20:12:01,884 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 535 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:01,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 501 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:12:01,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-10-15 20:12:01,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2022-10-15 20:12:01,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 305 states have (on average 1.0590163934426229) internal successors, (323), 315 states have internal predecessors, (323), 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 20:12:01,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 323 transitions. [2022-10-15 20:12:01,898 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 323 transitions. Word has length 146 [2022-10-15 20:12:01,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:01,899 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 323 transitions. [2022-10-15 20:12:01,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 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 20:12:01,899 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 323 transitions. [2022-10-15 20:12:01,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-10-15 20:12:01,904 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:01,904 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:01,937 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 20:12:02,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:02,121 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-15 20:12:02,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:02,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1212059482, now seen corresponding path program 2 times [2022-10-15 20:12:02,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:02,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114683515] [2022-10-15 20:12:02,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:02,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:14,094 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 20:12:14,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:14,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114683515] [2022-10-15 20:12:14,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114683515] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:14,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264595054] [2022-10-15 20:12:14,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:12:14,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:14,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:14,101 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 20:12:14,104 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 20:12:14,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:12:14,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:14,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-15 20:12:14,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 20:12:14,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:30,065 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 20:12:30,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264595054] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:30,066 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:30,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2022-10-15 20:12:30,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529444019] [2022-10-15 20:12:30,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:30,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-10-15 20:12:30,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:30,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-10-15 20:12:30,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2022-10-15 20:12:30,082 INFO L87 Difference]: Start difference. First operand 316 states and 323 transitions. Second operand has 258 states, 258 states have (on average 2.0387596899224807) internal successors, (526), 258 states have internal predecessors, (526), 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)