/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-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:10:59,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:10:59,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:10:59,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:10:59,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:10:59,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:10:59,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:10:59,258 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:10:59,287 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:10:59,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:10:59,288 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:10:59,288 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:10:59,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:10:59,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:10:59,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:10:59,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:10:59,291 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:10:59,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:10:59,291 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:10:59,291 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:10:59,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:10:59,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:10:59,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:10:59,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:10:59,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:10:59,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:10:59,293 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:10:59,293 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:10:59,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:10:59,293 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:10:59,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:10:59,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:10:59,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:10:59,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:10:59,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:10:59,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:10:59,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:10:59,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:10:59,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:10:59,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:10:59,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:10:59,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:10:59,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:10:59,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:10:59,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:10:59,707 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:10:59,708 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:10:59,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copy6_ground-1.i [2022-10-16 10:10:59,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e009489df/bdb0c6f6b921413495573d1fd0664e28/FLAG6d6736d13 [2022-10-16 10:11:00,525 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:11:00,525 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy6_ground-1.i [2022-10-16 10:11:00,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e009489df/bdb0c6f6b921413495573d1fd0664e28/FLAG6d6736d13 [2022-10-16 10:11:00,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e009489df/bdb0c6f6b921413495573d1fd0664e28 [2022-10-16 10:11:00,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:11:00,892 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:11:00,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:11:00,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:11:00,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:11:00,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:11:00" (1/1) ... [2022-10-16 10:11:00,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0b8fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:00, skipping insertion in model container [2022-10-16 10:11:00,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:11:00" (1/1) ... [2022-10-16 10:11:00,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:11:00,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:11:01,178 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-1.i[816,829] [2022-10-16 10:11:01,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:11:01,243 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:11:01,265 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-1.i[816,829] [2022-10-16 10:11:01,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:11:01,320 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:11:01,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01 WrapperNode [2022-10-16 10:11:01,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:11:01,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:11:01,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:11:01,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:11:01,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (1/1) ... [2022-10-16 10:11:01,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (1/1) ... [2022-10-16 10:11:01,399 INFO L138 Inliner]: procedures = 16, calls = 44, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 163 [2022-10-16 10:11:01,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:11:01,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:11:01,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:11:01,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:11:01,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (1/1) ... [2022-10-16 10:11:01,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (1/1) ... [2022-10-16 10:11:01,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (1/1) ... [2022-10-16 10:11:01,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (1/1) ... [2022-10-16 10:11:01,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (1/1) ... [2022-10-16 10:11:01,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (1/1) ... [2022-10-16 10:11:01,457 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (1/1) ... [2022-10-16 10:11:01,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (1/1) ... [2022-10-16 10:11:01,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:11:01,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:11:01,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:11:01,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:11:01,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (1/1) ... [2022-10-16 10:11:01,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:11:01,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:11:01,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:11:01,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:11:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:11:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:11:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:11:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:11:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:11:01,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:11:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:11:01,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:11:01,660 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:11:01,663 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:11:01,944 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:11:01,952 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:11:01,952 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-10-16 10:11:01,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:11:01 BoogieIcfgContainer [2022-10-16 10:11:01,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:11:01,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:11:01,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:11:01,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:11:01,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:11:00" (1/3) ... [2022-10-16 10:11:01,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3c1f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:11:01, skipping insertion in model container [2022-10-16 10:11:01,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:11:01" (2/3) ... [2022-10-16 10:11:01,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3c1f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:11:01, skipping insertion in model container [2022-10-16 10:11:01,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:11:01" (3/3) ... [2022-10-16 10:11:02,004 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy6_ground-1.i [2022-10-16 10:11:02,047 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:11:02,048 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 10:11:02,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:11:02,158 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;@5dd3bd03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:11:02,158 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 10:11:02,164 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) [2022-10-16 10:11:02,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 10:11:02,171 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:02,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 10:11:02,172 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)] === [2022-10-16 10:11:02,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:02,179 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 10:11:02,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:02,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447157220] [2022-10-16 10:11:02,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:02,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:11:02,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:02,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447157220] [2022-10-16 10:11:02,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447157220] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:11:02,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:11:02,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:11:02,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726498365] [2022-10-16 10:11:02,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:11:02,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:11:02,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:02,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:11:02,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:11:02,695 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) [2022-10-16 10:11:02,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:02,767 INFO L93 Difference]: Finished difference Result 126 states and 158 transitions. [2022-10-16 10:11:02,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:11:02,770 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 [2022-10-16 10:11:02,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:02,780 INFO L225 Difference]: With dead ends: 126 [2022-10-16 10:11:02,780 INFO L226 Difference]: Without dead ends: 63 [2022-10-16 10:11:02,784 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 [2022-10-16 10:11:02,788 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 [2022-10-16 10:11:02,790 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] [2022-10-16 10:11:02,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-16 10:11:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-16 10:11:02,831 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) [2022-10-16 10:11:02,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2022-10-16 10:11:02,834 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 5 [2022-10-16 10:11:02,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:02,835 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2022-10-16 10:11:02,835 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) [2022-10-16 10:11:02,835 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2022-10-16 10:11:02,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:11:02,836 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:02,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:11:02,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:11:02,837 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)] === [2022-10-16 10:11:02,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:02,838 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 10:11:02,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:02,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986454463] [2022-10-16 10:11:02,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:02,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:11:02,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:02,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986454463] [2022-10-16 10:11:02,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986454463] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:11:02,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:11:02,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:11:02,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903608337] [2022-10-16 10:11:02,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:11:02,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:11:02,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:02,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:11:02,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:11:02,976 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) [2022-10-16 10:11:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:03,013 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2022-10-16 10:11:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:11:03,014 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 [2022-10-16 10:11:03,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:03,015 INFO L225 Difference]: With dead ends: 63 [2022-10-16 10:11:03,015 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 10:11:03,016 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 [2022-10-16 10:11:03,017 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 [2022-10-16 10:11:03,018 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] [2022-10-16 10:11:03,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 10:11:03,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-16 10:11:03,026 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) [2022-10-16 10:11:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 69 transitions. [2022-10-16 10:11:03,027 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 69 transitions. Word has length 9 [2022-10-16 10:11:03,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:03,028 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 69 transitions. [2022-10-16 10:11:03,028 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) [2022-10-16 10:11:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 69 transitions. [2022-10-16 10:11:03,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:11:03,029 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:03,029 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:11:03,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:11:03,030 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)] === [2022-10-16 10:11:03,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:03,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 10:11:03,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:03,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477355305] [2022-10-16 10:11:03,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:03,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:11:03,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:03,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477355305] [2022-10-16 10:11:03,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477355305] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:11:03,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638820178] [2022-10-16 10:11:03,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:03,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:11:03,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:11:03,293 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:11:03,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:11:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:03,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:11:03,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:11:03,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:11:03,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:11:03,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638820178] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:11:03,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:11:03,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:11:03,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682926038] [2022-10-16 10:11:03,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:11:03,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:11:03,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:03,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:11:03,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:11:03,566 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) [2022-10-16 10:11:03,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:03,628 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2022-10-16 10:11:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:11:03,629 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 [2022-10-16 10:11:03,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:03,631 INFO L225 Difference]: With dead ends: 62 [2022-10-16 10:11:03,631 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 10:11:03,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:11:03,634 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 [2022-10-16 10:11:03,634 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] [2022-10-16 10:11:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 10:11:03,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2022-10-16 10:11:03,643 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) [2022-10-16 10:11:03,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2022-10-16 10:11:03,645 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 10 [2022-10-16 10:11:03,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:03,645 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2022-10-16 10:11:03,645 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) [2022-10-16 10:11:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2022-10-16 10:11:03,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:11:03,647 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:03,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:03,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:11:03,860 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 [2022-10-16 10:11:03,861 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)] === [2022-10-16 10:11:03,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:03,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1713504278, now seen corresponding path program 1 times [2022-10-16 10:11:03,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:03,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877214525] [2022-10-16 10:11:03,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:03,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:04,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:11:04,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:04,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877214525] [2022-10-16 10:11:04,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877214525] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:11:04,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151296447] [2022-10-16 10:11:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:04,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:11:04,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:11:04,006 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:11:04,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:11:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:04,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:11:04,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:11:04,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:11:04,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:11:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:11:04,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151296447] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:11:04,219 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:11:04,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:11:04,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044578939] [2022-10-16 10:11:04,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:11:04,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:11:04,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:04,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:11:04,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:11:04,231 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) [2022-10-16 10:11:04,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:04,336 INFO L93 Difference]: Finished difference Result 117 states and 132 transitions. [2022-10-16 10:11:04,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:11:04,340 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 [2022-10-16 10:11:04,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:04,344 INFO L225 Difference]: With dead ends: 117 [2022-10-16 10:11:04,344 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 10:11:04,345 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 [2022-10-16 10:11:04,350 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, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:11:04,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 354 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:11:04,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 10:11:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-10-16 10:11:04,363 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) [2022-10-16 10:11:04,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 73 transitions. [2022-10-16 10:11:04,365 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 73 transitions. Word has length 11 [2022-10-16 10:11:04,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:04,366 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 73 transitions. [2022-10-16 10:11:04,366 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) [2022-10-16 10:11:04,366 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 73 transitions. [2022-10-16 10:11:04,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 10:11:04,367 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:04,368 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:04,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:11:04,582 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 [2022-10-16 10:11:04,583 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)] === [2022-10-16 10:11:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:04,585 INFO L85 PathProgramCache]: Analyzing trace with hash -230725406, now seen corresponding path program 2 times [2022-10-16 10:11:04,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:04,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578895889] [2022-10-16 10:11:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:04,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:11:04,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:04,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578895889] [2022-10-16 10:11:04,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578895889] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:11:04,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:11:04,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:11:04,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564149807] [2022-10-16 10:11:04,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:11:04,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:11:04,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:04,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:11:04,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:11:04,783 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) [2022-10-16 10:11:04,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:04,889 INFO L93 Difference]: Finished difference Result 146 states and 164 transitions. [2022-10-16 10:11:04,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:11:04,889 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 [2022-10-16 10:11:04,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:04,891 INFO L225 Difference]: With dead ends: 146 [2022-10-16 10:11:04,891 INFO L226 Difference]: Without dead ends: 100 [2022-10-16 10:11:04,892 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 [2022-10-16 10:11:04,893 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 [2022-10-16 10:11:04,894 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] [2022-10-16 10:11:04,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-16 10:11:04,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 75. [2022-10-16 10:11:04,903 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) [2022-10-16 10:11:04,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2022-10-16 10:11:04,904 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 19 [2022-10-16 10:11:04,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:04,905 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2022-10-16 10:11:04,905 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) [2022-10-16 10:11:04,905 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2022-10-16 10:11:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:11:04,906 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:04,906 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:04,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 10:11:04,907 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)] === [2022-10-16 10:11:04,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:04,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2133188386, now seen corresponding path program 1 times [2022-10-16 10:11:04,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:04,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736741481] [2022-10-16 10:11:04,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:04,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:05,018 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 10:11:05,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:05,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736741481] [2022-10-16 10:11:05,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736741481] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:11:05,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:11:05,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:11:05,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329286119] [2022-10-16 10:11:05,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:11:05,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:11:05,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:05,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:11:05,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:11:05,021 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) [2022-10-16 10:11:05,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:05,094 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2022-10-16 10:11:05,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:11:05,095 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 [2022-10-16 10:11:05,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:05,097 INFO L225 Difference]: With dead ends: 75 [2022-10-16 10:11:05,097 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 10:11:05,098 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 [2022-10-16 10:11:05,102 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 30 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-10-16 10:11:05,102 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] [2022-10-16 10:11:05,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 10:11:05,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-10-16 10:11:05,128 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) [2022-10-16 10:11:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2022-10-16 10:11:05,134 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 23 [2022-10-16 10:11:05,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:05,134 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2022-10-16 10:11:05,134 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) [2022-10-16 10:11:05,134 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2022-10-16 10:11:05,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:11:05,135 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:05,136 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:05,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 10:11:05,138 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)] === [2022-10-16 10:11:05,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:05,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1704330462, now seen corresponding path program 1 times [2022-10-16 10:11:05,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:05,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956824569] [2022-10-16 10:11:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:05,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:05,361 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:11:05,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:05,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956824569] [2022-10-16 10:11:05,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956824569] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:11:05,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51140174] [2022-10-16 10:11:05,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:05,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:11:05,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:11:05,370 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:11:05,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:11:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:05,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:11:05,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:11:05,541 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:11:05,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:11:05,644 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:11:05,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51140174] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:11:05,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:11:05,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-16 10:11:05,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065563457] [2022-10-16 10:11:05,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:11:05,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:11:05,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:05,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:11:05,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:11:05,648 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) [2022-10-16 10:11:05,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:05,795 INFO L93 Difference]: Finished difference Result 149 states and 166 transitions. [2022-10-16 10:11:05,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:11:05,796 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 [2022-10-16 10:11:05,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:05,797 INFO L225 Difference]: With dead ends: 149 [2022-10-16 10:11:05,798 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 10:11:05,799 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 [2022-10-16 10:11:05,800 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 [2022-10-16 10:11:05,800 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] [2022-10-16 10:11:05,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 10:11:05,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-10-16 10:11:05,807 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) [2022-10-16 10:11:05,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2022-10-16 10:11:05,809 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 24 [2022-10-16 10:11:05,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:05,809 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2022-10-16 10:11:05,809 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) [2022-10-16 10:11:05,809 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2022-10-16 10:11:05,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 10:11:05,811 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:05,811 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:05,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:11:06,024 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 [2022-10-16 10:11:06,025 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)] === [2022-10-16 10:11:06,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:06,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1811331278, now seen corresponding path program 2 times [2022-10-16 10:11:06,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:06,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504465901] [2022-10-16 10:11:06,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:06,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:06,391 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:11:06,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:06,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504465901] [2022-10-16 10:11:06,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504465901] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:11:06,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788555354] [2022-10-16 10:11:06,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:11:06,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:11:06,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:11:06,394 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:11:06,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:11:06,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:11:06,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:11:06,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:11:06,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:11:06,625 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:11:06,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:11:06,913 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:11:06,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788555354] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:11:06,914 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:11:06,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-16 10:11:06,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053832791] [2022-10-16 10:11:06,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:11:06,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:11:06,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:06,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:11:06,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:11:06,917 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) [2022-10-16 10:11:07,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:07,265 INFO L93 Difference]: Finished difference Result 181 states and 202 transitions. [2022-10-16 10:11:07,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 10:11:07,266 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 [2022-10-16 10:11:07,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:07,267 INFO L225 Difference]: With dead ends: 181 [2022-10-16 10:11:07,267 INFO L226 Difference]: Without dead ends: 122 [2022-10-16 10:11:07,269 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 [2022-10-16 10:11:07,270 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 [2022-10-16 10:11:07,270 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] [2022-10-16 10:11:07,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-16 10:11:07,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-10-16 10:11:07,278 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) [2022-10-16 10:11:07,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 129 transitions. [2022-10-16 10:11:07,280 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 129 transitions. Word has length 40 [2022-10-16 10:11:07,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:07,280 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 129 transitions. [2022-10-16 10:11:07,281 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) [2022-10-16 10:11:07,281 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 129 transitions. [2022-10-16 10:11:07,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 10:11:07,283 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:07,283 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:07,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:11:07,496 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 [2022-10-16 10:11:07,497 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)] === [2022-10-16 10:11:07,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:07,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1894154414, now seen corresponding path program 3 times [2022-10-16 10:11:07,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:07,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398243034] [2022-10-16 10:11:07,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:07,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:11:08,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:08,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398243034] [2022-10-16 10:11:08,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398243034] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:11:08,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045830646] [2022-10-16 10:11:08,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:11:08,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:11:08,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:11:08,659 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:11:08,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:11:08,818 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:11:08,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:11:08,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:11:08,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:11:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:11:08,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:11:08,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045830646] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:11:08,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:11:08,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2022-10-16 10:11:08,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914921692] [2022-10-16 10:11:08,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:11:08,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:11:08,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:08,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:11:08,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 10:11:08,882 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) [2022-10-16 10:11:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:08,964 INFO L93 Difference]: Finished difference Result 122 states and 129 transitions. [2022-10-16 10:11:08,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:11:08,964 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 [2022-10-16 10:11:08,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:08,968 INFO L225 Difference]: With dead ends: 122 [2022-10-16 10:11:08,968 INFO L226 Difference]: Without dead ends: 121 [2022-10-16 10:11:08,970 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 [2022-10-16 10:11:08,976 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 [2022-10-16 10:11:08,976 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] [2022-10-16 10:11:08,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-10-16 10:11:08,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2022-10-16 10:11:08,988 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) [2022-10-16 10:11:08,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 125 transitions. [2022-10-16 10:11:08,990 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 125 transitions. Word has length 72 [2022-10-16 10:11:08,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:08,992 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 125 transitions. [2022-10-16 10:11:08,992 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) [2022-10-16 10:11:08,992 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 125 transitions. [2022-10-16 10:11:08,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 10:11:08,997 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:08,997 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:09,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:11:09,212 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 [2022-10-16 10:11:09,213 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)] === [2022-10-16 10:11:09,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:09,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1409160564, now seen corresponding path program 1 times [2022-10-16 10:11:09,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:09,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047212184] [2022-10-16 10:11:09,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:09,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:09,413 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:11:09,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:09,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047212184] [2022-10-16 10:11:09,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047212184] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:11:09,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621652062] [2022-10-16 10:11:09,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:09,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:11:09,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:11:09,416 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:11:09,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:11:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:09,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:11:09,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:11:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:11:10,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:11:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:11:11,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621652062] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:11:11,125 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:11:11,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2022-10-16 10:11:11,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95040391] [2022-10-16 10:11:11,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:11:11,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 10:11:11,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:11,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 10:11:11,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:11:11,131 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) [2022-10-16 10:11:12,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:12,285 INFO L93 Difference]: Finished difference Result 269 states and 299 transitions. [2022-10-16 10:11:12,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-10-16 10:11:12,285 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 [2022-10-16 10:11:12,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:12,288 INFO L225 Difference]: With dead ends: 269 [2022-10-16 10:11:12,288 INFO L226 Difference]: Without dead ends: 214 [2022-10-16 10:11:12,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2022-10-16 10:11:12,294 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 228 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:11:12,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 779 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:11:12,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-10-16 10:11:12,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 186. [2022-10-16 10:11:12,311 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) [2022-10-16 10:11:12,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 193 transitions. [2022-10-16 10:11:12,314 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 193 transitions. Word has length 73 [2022-10-16 10:11:12,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:12,314 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 193 transitions. [2022-10-16 10:11:12,315 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) [2022-10-16 10:11:12,315 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 193 transitions. [2022-10-16 10:11:12,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-16 10:11:12,324 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:12,324 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:12,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-16 10:11:12,537 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 [2022-10-16 10:11:12,538 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)] === [2022-10-16 10:11:12,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:12,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1254469680, now seen corresponding path program 2 times [2022-10-16 10:11:12,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:12,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074332019] [2022-10-16 10:11:12,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:12,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:12,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2022-10-16 10:11:12,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:12,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074332019] [2022-10-16 10:11:12,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074332019] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:11:12,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:11:12,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:11:12,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299210492] [2022-10-16 10:11:12,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:11:12,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:11:12,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:12,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:11:12,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:11:12,891 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) [2022-10-16 10:11:12,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:12,960 INFO L93 Difference]: Finished difference Result 211 states and 218 transitions. [2022-10-16 10:11:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:11:12,961 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 [2022-10-16 10:11:12,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:12,963 INFO L225 Difference]: With dead ends: 211 [2022-10-16 10:11:12,963 INFO L226 Difference]: Without dead ends: 209 [2022-10-16 10:11:12,963 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 [2022-10-16 10:11:12,964 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 [2022-10-16 10:11:12,965 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] [2022-10-16 10:11:12,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-10-16 10:11:12,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 189. [2022-10-16 10:11:12,974 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) [2022-10-16 10:11:12,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 196 transitions. [2022-10-16 10:11:12,975 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 196 transitions. Word has length 141 [2022-10-16 10:11:12,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:12,976 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 196 transitions. [2022-10-16 10:11:12,977 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) [2022-10-16 10:11:12,977 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 196 transitions. [2022-10-16 10:11:12,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 10:11:12,981 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:12,981 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:12,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 10:11:12,982 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)] === [2022-10-16 10:11:12,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:12,982 INFO L85 PathProgramCache]: Analyzing trace with hash 322471340, now seen corresponding path program 1 times [2022-10-16 10:11:12,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:12,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627255395] [2022-10-16 10:11:12,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:12,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:13,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2022-10-16 10:11:13,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:13,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627255395] [2022-10-16 10:11:13,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627255395] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:11:13,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:11:13,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:11:13,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148359558] [2022-10-16 10:11:13,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:11:13,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:11:13,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:13,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:11:13,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:11:13,250 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) [2022-10-16 10:11:13,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:13,303 INFO L93 Difference]: Finished difference Result 189 states and 196 transitions. [2022-10-16 10:11:13,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:11:13,303 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 [2022-10-16 10:11:13,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:13,305 INFO L225 Difference]: With dead ends: 189 [2022-10-16 10:11:13,305 INFO L226 Difference]: Without dead ends: 188 [2022-10-16 10:11:13,306 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 [2022-10-16 10:11:13,307 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, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:11:13,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 106 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:11:13,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-10-16 10:11:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-10-16 10:11:13,316 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) [2022-10-16 10:11:13,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 195 transitions. [2022-10-16 10:11:13,317 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 195 transitions. Word has length 145 [2022-10-16 10:11:13,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:13,318 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 195 transitions. [2022-10-16 10:11:13,318 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) [2022-10-16 10:11:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 195 transitions. [2022-10-16 10:11:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-16 10:11:13,320 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:13,320 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:13,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 10:11:13,321 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)] === [2022-10-16 10:11:13,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:13,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1406677030, now seen corresponding path program 1 times [2022-10-16 10:11:13,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:13,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031185779] [2022-10-16 10:11:13,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:13,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:16,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:11:16,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:16,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031185779] [2022-10-16 10:11:16,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031185779] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:11:16,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406159036] [2022-10-16 10:11:16,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:16,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:11:16,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:11:16,971 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:11:16,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:11:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:17,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 10:11:17,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:11:17,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:11:17,504 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:11:21,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:11:21,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406159036] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:11:21,049 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:11:21,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-16 10:11:21,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294665285] [2022-10-16 10:11:21,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:11:21,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-16 10:11:21,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:21,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-16 10:11:21,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-16 10:11:21,059 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) [2022-10-16 10:11:24,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:11:24,257 INFO L93 Difference]: Finished difference Result 377 states and 422 transitions. [2022-10-16 10:11:24,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-10-16 10:11:24,258 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 [2022-10-16 10:11:24,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:11:24,260 INFO L225 Difference]: With dead ends: 377 [2022-10-16 10:11:24,260 INFO L226 Difference]: Without dead ends: 316 [2022-10-16 10:11:24,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-16 10:11:24,271 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, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:11:24,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 501 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:11:24,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-10-16 10:11:24,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2022-10-16 10:11:24,282 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) [2022-10-16 10:11:24,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 323 transitions. [2022-10-16 10:11:24,283 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 323 transitions. Word has length 146 [2022-10-16 10:11:24,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:11:24,283 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 323 transitions. [2022-10-16 10:11:24,284 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) [2022-10-16 10:11:24,284 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 323 transitions. [2022-10-16 10:11:24,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-10-16 10:11:24,287 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:11:24,288 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:11:24,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:11:24,501 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 [2022-10-16 10:11:24,502 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)] === [2022-10-16 10:11:24,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:11:24,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1212059482, now seen corresponding path program 2 times [2022-10-16 10:11:24,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:11:24,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783605098] [2022-10-16 10:11:24,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:11:24,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:11:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:11:36,628 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:11:36,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:11:36,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783605098] [2022-10-16 10:11:36,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783605098] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:11:36,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323287270] [2022-10-16 10:11:36,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:11:36,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:11:36,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:11:36,635 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:11:36,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:11:37,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:11:37,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:11:37,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 1508 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-16 10:11:37,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:11:37,514 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:11:37,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:11:52,457 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:11:52,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323287270] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:11:52,458 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:11:52,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2022-10-16 10:11:52,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536288657] [2022-10-16 10:11:52,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:11:52,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-10-16 10:11:52,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:11:52,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-10-16 10:11:52,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2022-10-16 10:11:52,475 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) [2022-10-16 10:12:06,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:06,173 INFO L93 Difference]: Finished difference Result 633 states and 710 transitions. [2022-10-16 10:12:06,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-10-16 10:12:06,174 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 274 [2022-10-16 10:12:06,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:06,177 INFO L225 Difference]: With dead ends: 633 [2022-10-16 10:12:06,178 INFO L226 Difference]: Without dead ends: 572 [2022-10-16 10:12:06,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 30.0s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2022-10-16 10:12:06,188 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 1467 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:06,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 669 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 10:12:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-10-16 10:12:06,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2022-10-16 10:12:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 561 states have (on average 1.032085561497326) internal successors, (579), 571 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:06,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 579 transitions. [2022-10-16 10:12:06,207 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 579 transitions. Word has length 274 [2022-10-16 10:12:06,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:06,208 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 579 transitions. [2022-10-16 10:12:06,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-10-16 10:12:06,209 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 579 transitions. [2022-10-16 10:12:06,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-10-16 10:12:06,220 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:06,220 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:06,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:12:06,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:12:06,436 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:12:06,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:06,438 INFO L85 PathProgramCache]: Analyzing trace with hash 570159526, now seen corresponding path program 3 times [2022-10-16 10:12:06,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:06,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282490452] [2022-10-16 10:12:06,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:06,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:50,613 INFO L134 CoverageAnalysis]: Checked inductivity of 32141 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:12:50,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:50,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282490452] [2022-10-16 10:12:50,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282490452] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:12:50,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403196748] [2022-10-16 10:12:50,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:12:50,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:50,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:12:50,615 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:12:50,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:12:50,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:12:50,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:12:50,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:12:50,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:12:51,244 INFO L134 CoverageAnalysis]: Checked inductivity of 32141 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32137 trivial. 0 not checked. [2022-10-16 10:12:51,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:12:51,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403196748] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:12:51,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:12:51,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [257] total 259 [2022-10-16 10:12:51,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946148927] [2022-10-16 10:12:51,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:12:51,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:12:51,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:51,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:12:51,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16644, Invalid=50178, Unknown=0, NotChecked=0, Total=66822 [2022-10-16 10:12:51,253 INFO L87 Difference]: Start difference. First operand 572 states and 579 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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) [2022-10-16 10:12:51,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:51,430 INFO L93 Difference]: Finished difference Result 572 states and 579 transitions. [2022-10-16 10:12:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:12:51,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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 530 [2022-10-16 10:12:51,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:51,435 INFO L225 Difference]: With dead ends: 572 [2022-10-16 10:12:51,435 INFO L226 Difference]: Without dead ends: 571 [2022-10-16 10:12:51,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16508 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=16648, Invalid=50692, Unknown=0, NotChecked=0, Total=67340 [2022-10-16 10:12:51,442 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 40 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:51,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 85 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:12:51,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-10-16 10:12:51,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 568. [2022-10-16 10:12:51,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 558 states have (on average 1.0304659498207884) internal successors, (575), 567 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:51,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 575 transitions. [2022-10-16 10:12:51,462 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 575 transitions. Word has length 530 [2022-10-16 10:12:51,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:51,464 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 575 transitions. [2022-10-16 10:12:51,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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) [2022-10-16 10:12:51,464 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 575 transitions. [2022-10-16 10:12:51,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2022-10-16 10:12:51,476 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:51,477 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:51,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:12:51,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:12:51,693 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 10:12:51,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:51,694 INFO L85 PathProgramCache]: Analyzing trace with hash 493481394, now seen corresponding path program 1 times [2022-10-16 10:12:51,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:51,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791609616] [2022-10-16 10:12:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:51,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:52,435 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 32137 trivial. 0 not checked. [2022-10-16 10:12:52,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:52,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791609616] [2022-10-16 10:12:52,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791609616] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:12:52,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891029949] [2022-10-16 10:12:52,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:52,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:52,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:12:52,441 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:12:52,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:12:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:53,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 2854 conjuncts, 256 conjunts are in the unsatisfiable core [2022-10-16 10:12:53,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:13:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:13:16,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:14:15,446 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:14:15,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891029949] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:14:15,447 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:14:15,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 257, 257] total 515 [2022-10-16 10:14:15,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209920905] [2022-10-16 10:14:15,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:14:15,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 515 states [2022-10-16 10:14:15,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:15,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 515 interpolants. [2022-10-16 10:14:15,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65799, Invalid=198911, Unknown=0, NotChecked=0, Total=264710 [2022-10-16 10:14:15,483 INFO L87 Difference]: Start difference. First operand 568 states and 575 transitions. Second operand has 515 states, 515 states have (on average 2.0485436893203883) internal successors, (1055), 515 states have internal predecessors, (1055), 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)