/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/loop-lit/gsv2008.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:42:30,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:42:30,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:42:30,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 21:42:30,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:42:30,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:42:30,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:42:30,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:42:30,568 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:42:30,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:42:30,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:42:30,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:42:30,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:42:30,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:42:30,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:42:30,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:42:30,572 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:42:30,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:42:30,572 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:42:30,572 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:42:30,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:42:30,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:42:30,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:42:30,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:42:30,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:42:30,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:42:30,574 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:42:30,574 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:42:30,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:42:30,575 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:42:30,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:42:30,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:42:30,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:42:30,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:42:30,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:42:30,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:42:30,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:42:30,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:42:30,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:42:30,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:42:30,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:42:30,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:42:30,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:42:30,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:42:30,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:42:30,954 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:42:30,955 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:42:30,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2022-10-15 21:42:31,043 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28d04a3e9/8f5b9d40378642c99ea9e60ad698d478/FLAG441deaa92 [2022-10-15 21:42:31,730 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:42:31,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2022-10-15 21:42:31,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28d04a3e9/8f5b9d40378642c99ea9e60ad698d478/FLAG441deaa92 [2022-10-15 21:42:32,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28d04a3e9/8f5b9d40378642c99ea9e60ad698d478 [2022-10-15 21:42:32,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:42:32,100 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:42:32,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:42:32,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:42:32,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:42:32,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ecbe6f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32, skipping insertion in model container [2022-10-15 21:42:32,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:42:32,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:42:32,293 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/loop-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] [2022-10-15 21:42:32,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:42:32,304 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:42:32,322 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/loop-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] [2022-10-15 21:42:32,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:42:32,338 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:42:32,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32 WrapperNode [2022-10-15 21:42:32,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:42:32,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:42:32,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:42:32,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:42:32,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,375 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2022-10-15 21:42:32,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:42:32,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:42:32,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:42:32,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:42:32,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,395 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:42:32,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:42:32,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:42:32,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:42:32,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (1/1) ... [2022-10-15 21:42:32,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:42:32,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:32,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:42:32,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:42:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:42:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:42:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:42:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:42:32,550 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:42:32,552 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:42:32,690 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:42:32,697 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:42:32,697 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:42:32,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:42:32 BoogieIcfgContainer [2022-10-15 21:42:32,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:42:32,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:42:32,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:42:32,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:42:32,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:42:32" (1/3) ... [2022-10-15 21:42:32,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a79319b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:42:32, skipping insertion in model container [2022-10-15 21:42:32,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:32" (2/3) ... [2022-10-15 21:42:32,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a79319b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:42:32, skipping insertion in model container [2022-10-15 21:42:32,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:42:32" (3/3) ... [2022-10-15 21:42:32,710 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2022-10-15 21:42:32,732 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:42:32,733 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-15 21:42:32,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:42:32,803 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;@5f1fa692, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:42:32,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-15 21:42:32,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:32,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 21:42:32,816 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:32,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 21:42:32,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:32,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:32,824 INFO L85 PathProgramCache]: Analyzing trace with hash 889571305, now seen corresponding path program 1 times [2022-10-15 21:42:32,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:32,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802253350] [2022-10-15 21:42:32,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:32,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:33,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:33,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:33,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802253350] [2022-10-15 21:42:33,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802253350] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:42:33,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:42:33,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:42:33,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392374893] [2022-10-15 21:42:33,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:42:33,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:42:33,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:33,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:42:33,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:42:33,248 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 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 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:33,342 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-10-15 21:42:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:42:33,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-10-15 21:42:33,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:33,354 INFO L225 Difference]: With dead ends: 28 [2022-10-15 21:42:33,354 INFO L226 Difference]: Without dead ends: 16 [2022-10-15 21:42:33,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:42:33,362 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:33,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:42:33,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-15 21:42:33,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2022-10-15 21:42:33,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-10-15 21:42:33,407 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2022-10-15 21:42:33,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:33,408 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-10-15 21:42:33,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,410 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-10-15 21:42:33,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 21:42:33,411 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:33,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:42:33,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:42:33,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:33,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:33,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1806906729, now seen corresponding path program 1 times [2022-10-15 21:42:33,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:33,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824828463] [2022-10-15 21:42:33,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:33,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:33,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:33,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824828463] [2022-10-15 21:42:33,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824828463] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:42:33,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:42:33,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:42:33,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310867455] [2022-10-15 21:42:33,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:42:33,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:42:33,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:33,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:42:33,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:42:33,560 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:33,601 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-10-15 21:42:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:42:33,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-10-15 21:42:33,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:33,603 INFO L225 Difference]: With dead ends: 17 [2022-10-15 21:42:33,603 INFO L226 Difference]: Without dead ends: 16 [2022-10-15 21:42:33,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:42:33,606 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:33,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 15 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:42:33,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-15 21:42:33,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-15 21:42:33,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-10-15 21:42:33,613 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2022-10-15 21:42:33,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:33,613 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-10-15 21:42:33,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,614 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-10-15 21:42:33,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 21:42:33,614 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:33,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:42:33,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:42:33,615 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:33,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:33,616 INFO L85 PathProgramCache]: Analyzing trace with hash 179533803, now seen corresponding path program 1 times [2022-10-15 21:42:33,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:33,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374558402] [2022-10-15 21:42:33,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:33,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:33,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:33,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:33,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374558402] [2022-10-15 21:42:33,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374558402] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:42:33,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:42:33,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:42:33,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590316325] [2022-10-15 21:42:33,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:42:33,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:42:33,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:33,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:42:33,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:42:33,719 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:33,770 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-10-15 21:42:33,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:42:33,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-10-15 21:42:33,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:33,771 INFO L225 Difference]: With dead ends: 19 [2022-10-15 21:42:33,771 INFO L226 Difference]: Without dead ends: 18 [2022-10-15 21:42:33,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:42:33,773 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:33,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:42:33,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-15 21:42:33,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-10-15 21:42:33,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-10-15 21:42:33,783 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2022-10-15 21:42:33,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:33,784 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-10-15 21:42:33,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,784 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-10-15 21:42:33,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 21:42:33,786 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:33,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:42:33,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:42:33,786 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:33,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:33,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1270580651, now seen corresponding path program 1 times [2022-10-15 21:42:33,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:33,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992461107] [2022-10-15 21:42:33,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:33,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:33,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:33,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:33,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992461107] [2022-10-15 21:42:33,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992461107] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:42:33,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:42:33,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:42:33,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69678909] [2022-10-15 21:42:33,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:42:33,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:42:33,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:33,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:42:33,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:42:33,857 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:33,873 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-10-15 21:42:33,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:42:33,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 21:42:33,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:33,874 INFO L225 Difference]: With dead ends: 17 [2022-10-15 21:42:33,875 INFO L226 Difference]: Without dead ends: 16 [2022-10-15 21:42:33,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:42:33,877 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:33,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:42:33,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-15 21:42:33,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-15 21:42:33,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-10-15 21:42:33,884 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2022-10-15 21:42:33,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:33,884 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-10-15 21:42:33,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:33,885 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-10-15 21:42:33,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 21:42:33,885 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:33,885 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:42:33,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:42:33,886 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:33,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:33,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1257295021, now seen corresponding path program 1 times [2022-10-15 21:42:33,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:33,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663256821] [2022-10-15 21:42:33,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:33,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:34,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:34,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663256821] [2022-10-15 21:42:34,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663256821] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:34,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144602154] [2022-10-15 21:42:34,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:34,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:34,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:34,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:42:34,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:42:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:34,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:42:34,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:34,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:34,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:34,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:34,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144602154] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:34,329 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:34,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-15 21:42:34,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914321434] [2022-10-15 21:42:34,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:34,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 21:42:34,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:34,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 21:42:34,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:42:34,332 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:34,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:34,626 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-10-15 21:42:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 21:42:34,627 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-15 21:42:34,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:34,630 INFO L225 Difference]: With dead ends: 34 [2022-10-15 21:42:34,630 INFO L226 Difference]: Without dead ends: 32 [2022-10-15 21:42:34,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2022-10-15 21:42:34,639 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 37 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:34,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 10 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:42:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-15 21:42:34,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-10-15 21:42:34,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-10-15 21:42:34,656 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 11 [2022-10-15 21:42:34,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:34,657 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-10-15 21:42:34,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:34,657 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-10-15 21:42:34,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 21:42:34,658 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:34,658 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:42:34,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 21:42:34,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:34,873 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:34,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:34,874 INFO L85 PathProgramCache]: Analyzing trace with hash 321440037, now seen corresponding path program 1 times [2022-10-15 21:42:34,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:34,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932914552] [2022-10-15 21:42:34,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:34,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:34,950 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:34,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:34,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932914552] [2022-10-15 21:42:34,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932914552] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:34,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664887722] [2022-10-15 21:42:34,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:34,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:34,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:34,953 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:42:34,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:42:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:35,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:42:35,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:35,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:35,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:35,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:35,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664887722] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:35,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:35,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-15 21:42:35,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498259832] [2022-10-15 21:42:35,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:35,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 21:42:35,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:35,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 21:42:35,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-10-15 21:42:35,164 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:35,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:35,266 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-10-15 21:42:35,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 21:42:35,266 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-15 21:42:35,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:35,267 INFO L225 Difference]: With dead ends: 32 [2022-10-15 21:42:35,267 INFO L226 Difference]: Without dead ends: 31 [2022-10-15 21:42:35,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-10-15 21:42:35,270 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 25 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:35,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 12 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:42:35,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-15 21:42:35,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-10-15 21:42:35,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:35,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-10-15 21:42:35,278 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 12 [2022-10-15 21:42:35,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:35,278 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-10-15 21:42:35,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:35,279 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-10-15 21:42:35,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 21:42:35,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:35,279 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-15 21:42:35,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:35,493 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,SelfDestructingSolverStorable5 [2022-10-15 21:42:35,494 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:35,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:35,495 INFO L85 PathProgramCache]: Analyzing trace with hash -625003925, now seen corresponding path program 1 times [2022-10-15 21:42:35,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:35,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891336529] [2022-10-15 21:42:35,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:35,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:35,625 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:35,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:35,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891336529] [2022-10-15 21:42:35,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891336529] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:35,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662260319] [2022-10-15 21:42:35,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:35,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:35,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:35,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:42:35,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:42:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:35,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 21:42:35,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:35,724 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:35,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:35,776 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:35,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662260319] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:35,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:35,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2022-10-15 21:42:35,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82443212] [2022-10-15 21:42:35,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:35,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 21:42:35,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:35,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 21:42:35,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:42:35,779 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:36,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:36,020 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2022-10-15 21:42:36,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-15 21:42:36,021 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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 18 [2022-10-15 21:42:36,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:36,022 INFO L225 Difference]: With dead ends: 67 [2022-10-15 21:42:36,022 INFO L226 Difference]: Without dead ends: 66 [2022-10-15 21:42:36,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-10-15 21:42:36,024 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 46 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:36,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 17 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:42:36,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-15 21:42:36,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2022-10-15 21:42:36,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 55 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:36,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2022-10-15 21:42:36,034 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 18 [2022-10-15 21:42:36,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:36,035 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2022-10-15 21:42:36,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:36,035 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2022-10-15 21:42:36,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-15 21:42:36,036 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:36,036 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-10-15 21:42:36,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:36,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:36,252 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:36,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:36,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1045996311, now seen corresponding path program 2 times [2022-10-15 21:42:36,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:36,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191358585] [2022-10-15 21:42:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:36,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:36,447 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:36,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:36,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191358585] [2022-10-15 21:42:36,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191358585] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:36,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684271825] [2022-10-15 21:42:36,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:42:36,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:36,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:36,450 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:42:36,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:42:36,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:42:36,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:36,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 21:42:36,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:36,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:37,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684271825] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:37,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:37,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2022-10-15 21:42:37,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313372242] [2022-10-15 21:42:37,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:37,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-15 21:42:37,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:37,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-15 21:42:37,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=803, Unknown=0, NotChecked=0, Total=992 [2022-10-15 21:42:37,125 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 32 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 32 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:38,305 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2022-10-15 21:42:38,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-15 21:42:38,306 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 32 states have internal predecessors, (76), 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 26 [2022-10-15 21:42:38,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:38,307 INFO L225 Difference]: With dead ends: 79 [2022-10-15 21:42:38,307 INFO L226 Difference]: Without dead ends: 78 [2022-10-15 21:42:38,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1099, Invalid=3323, Unknown=0, NotChecked=0, Total=4422 [2022-10-15 21:42:38,310 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 199 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:38,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 19 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 21:42:38,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-15 21:42:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2022-10-15 21:42:38,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 68 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:38,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2022-10-15 21:42:38,322 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 26 [2022-10-15 21:42:38,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:38,322 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2022-10-15 21:42:38,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 32 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:38,323 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2022-10-15 21:42:38,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 21:42:38,323 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:38,324 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2022-10-15 21:42:38,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:38,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:38,539 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:38,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:38,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1933852777, now seen corresponding path program 2 times [2022-10-15 21:42:38,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:38,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415112490] [2022-10-15 21:42:38,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:38,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:38,760 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:38,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:38,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415112490] [2022-10-15 21:42:38,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415112490] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:38,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862590466] [2022-10-15 21:42:38,761 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:42:38,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:38,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:38,762 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:42:38,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:42:38,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:42:38,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:38,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 21:42:38,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:39,047 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:39,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:39,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862590466] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:39,238 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:39,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2022-10-15 21:42:39,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494657701] [2022-10-15 21:42:39,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:39,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-10-15 21:42:39,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:39,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-10-15 21:42:39,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=709, Unknown=0, NotChecked=0, Total=930 [2022-10-15 21:42:39,240 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 31 states, 30 states have (on average 2.6) internal successors, (78), 31 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:39,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:39,696 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2022-10-15 21:42:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-15 21:42:39,697 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.6) internal successors, (78), 31 states have internal predecessors, (78), 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 27 [2022-10-15 21:42:39,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:39,698 INFO L225 Difference]: With dead ends: 70 [2022-10-15 21:42:39,698 INFO L226 Difference]: Without dead ends: 69 [2022-10-15 21:42:39,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=439, Invalid=1201, Unknown=0, NotChecked=0, Total=1640 [2022-10-15 21:42:39,700 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 134 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:39,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 18 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:42:39,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-15 21:42:39,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-10-15 21:42:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.0909090909090908) internal successors, (72), 68 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2022-10-15 21:42:39,711 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 27 [2022-10-15 21:42:39,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:39,712 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2022-10-15 21:42:39,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.6) internal successors, (78), 31 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:39,712 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2022-10-15 21:42:39,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-15 21:42:39,713 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:39,714 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 1, 1, 1, 1, 1] [2022-10-15 21:42:39,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:39,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:39,927 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:39,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:39,928 INFO L85 PathProgramCache]: Analyzing trace with hash -849972817, now seen corresponding path program 2 times [2022-10-15 21:42:39,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:39,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601254250] [2022-10-15 21:42:39,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:39,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:40,402 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:40,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:40,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601254250] [2022-10-15 21:42:40,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601254250] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:40,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499971712] [2022-10-15 21:42:40,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:42:40,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:40,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:40,404 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:42:40,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:42:40,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:42:40,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:40,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 21:42:40,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:40,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:41,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499971712] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:41,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:41,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 11] total 41 [2022-10-15 21:42:41,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116925793] [2022-10-15 21:42:41,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:41,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-15 21:42:41,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:41,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-15 21:42:41,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1422, Unknown=0, NotChecked=0, Total=1722 [2022-10-15 21:42:41,105 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand has 42 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 42 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:43,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:43,189 INFO L93 Difference]: Finished difference Result 200 states and 220 transitions. [2022-10-15 21:42:43,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-10-15 21:42:43,190 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 42 states have internal predecessors, (155), 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 53 [2022-10-15 21:42:43,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:43,195 INFO L225 Difference]: With dead ends: 200 [2022-10-15 21:42:43,196 INFO L226 Difference]: Without dead ends: 199 [2022-10-15 21:42:43,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1323 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1506, Invalid=6150, Unknown=0, NotChecked=0, Total=7656 [2022-10-15 21:42:43,203 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 188 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:43,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 44 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 21:42:43,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-10-15 21:42:43,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 161. [2022-10-15 21:42:43,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 158 states have (on average 1.259493670886076) internal successors, (199), 160 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 199 transitions. [2022-10-15 21:42:43,251 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 199 transitions. Word has length 53 [2022-10-15 21:42:43,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:43,252 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 199 transitions. [2022-10-15 21:42:43,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 42 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:43,253 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 199 transitions. [2022-10-15 21:42:43,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-15 21:42:43,254 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:43,254 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1] [2022-10-15 21:42:43,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:43,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:43,470 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:43,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:43,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1953579241, now seen corresponding path program 3 times [2022-10-15 21:42:43,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:43,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584261490] [2022-10-15 21:42:43,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:43,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:44,046 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:44,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:44,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584261490] [2022-10-15 21:42:44,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584261490] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:44,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943678705] [2022-10-15 21:42:44,047 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 21:42:44,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:44,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:44,049 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:42:44,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 21:42:44,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-15 21:42:44,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:44,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-15 21:42:44,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:44,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:45,791 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:45,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943678705] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:45,792 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:45,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 66 [2022-10-15 21:42:45,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165692878] [2022-10-15 21:42:45,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:45,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-15 21:42:45,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:45,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-15 21:42:45,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=887, Invalid=3535, Unknown=0, NotChecked=0, Total=4422 [2022-10-15 21:42:45,797 INFO L87 Difference]: Start difference. First operand 161 states and 199 transitions. Second operand has 67 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 67 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:48,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:48,933 INFO L93 Difference]: Finished difference Result 171 states and 199 transitions. [2022-10-15 21:42:48,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-10-15 21:42:48,934 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 67 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-15 21:42:48,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:48,937 INFO L225 Difference]: With dead ends: 171 [2022-10-15 21:42:48,937 INFO L226 Difference]: Without dead ends: 170 [2022-10-15 21:42:48,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3438 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2692, Invalid=8020, Unknown=0, NotChecked=0, Total=10712 [2022-10-15 21:42:48,942 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 605 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:48,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 27 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-15 21:42:48,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-10-15 21:42:48,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 161. [2022-10-15 21:42:48,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 158 states have (on average 1.1835443037974684) internal successors, (187), 160 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:48,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 187 transitions. [2022-10-15 21:42:48,959 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 187 transitions. Word has length 57 [2022-10-15 21:42:48,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:48,959 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 187 transitions. [2022-10-15 21:42:48,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 67 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:48,960 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 187 transitions. [2022-10-15 21:42:48,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 21:42:48,961 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:48,961 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1, 1] [2022-10-15 21:42:48,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-15 21:42:49,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:49,175 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:49,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:49,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1957361943, now seen corresponding path program 3 times [2022-10-15 21:42:49,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:49,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386283339] [2022-10-15 21:42:49,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:49,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:49,938 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:49,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:49,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386283339] [2022-10-15 21:42:49,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386283339] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:49,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298272627] [2022-10-15 21:42:49,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 21:42:49,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:49,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:49,944 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:42:49,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 21:42:49,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 21:42:49,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:49,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 21:42:49,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:50,063 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-10-15 21:42:50,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:42:50,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298272627] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:42:50,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:42:50,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [27] total 30 [2022-10-15 21:42:50,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905725224] [2022-10-15 21:42:50,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:42:50,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:42:50,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:50,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:42:50,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2022-10-15 21:42:50,066 INFO L87 Difference]: Start difference. First operand 161 states and 187 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:50,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:50,114 INFO L93 Difference]: Finished difference Result 161 states and 187 transitions. [2022-10-15 21:42:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:42:50,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 66 [2022-10-15 21:42:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:50,116 INFO L225 Difference]: With dead ends: 161 [2022-10-15 21:42:50,116 INFO L226 Difference]: Without dead ends: 160 [2022-10-15 21:42:50,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2022-10-15 21:42:50,117 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:50,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:42:50,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-10-15 21:42:50,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-10-15 21:42:50,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 158 states have (on average 1.0632911392405062) internal successors, (168), 159 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:50,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 168 transitions. [2022-10-15 21:42:50,132 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 168 transitions. Word has length 66 [2022-10-15 21:42:50,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:50,132 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 168 transitions. [2022-10-15 21:42:50,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:50,133 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 168 transitions. [2022-10-15 21:42:50,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-15 21:42:50,134 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:50,135 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1] [2022-10-15 21:42:50,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:50,350 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,SelfDestructingSolverStorable11 [2022-10-15 21:42:50,350 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1337958889, now seen corresponding path program 4 times [2022-10-15 21:42:50,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:50,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546421138] [2022-10-15 21:42:50,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:50,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:52,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:52,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:52,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546421138] [2022-10-15 21:42:52,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546421138] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:52,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451772023] [2022-10-15 21:42:52,349 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 21:42:52,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:52,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:52,350 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:42:52,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 21:42:52,430 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 21:42:52,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:52,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-15 21:42:52,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:55,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:55,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:59,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451772023] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:59,338 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:59,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 138 [2022-10-15 21:42:59,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492273797] [2022-10-15 21:42:59,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:59,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2022-10-15 21:42:59,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:59,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2022-10-15 21:42:59,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3515, Invalid=15667, Unknown=0, NotChecked=0, Total=19182 [2022-10-15 21:42:59,348 INFO L87 Difference]: Start difference. First operand 160 states and 168 transitions. Second operand has 139 states, 138 states have (on average 2.5217391304347827) internal successors, (348), 139 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:12,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:12,420 INFO L93 Difference]: Finished difference Result 241 states and 278 transitions. [2022-10-15 21:43:12,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-10-15 21:43:12,421 INFO L78 Accepts]: Start accepts. Automaton has has 139 states, 138 states have (on average 2.5217391304347827) internal successors, (348), 139 states have internal predecessors, (348), 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 117 [2022-10-15 21:43:12,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:12,423 INFO L225 Difference]: With dead ends: 241 [2022-10-15 21:43:12,423 INFO L226 Difference]: Without dead ends: 240 [2022-10-15 21:43:12,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13871 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=9639, Invalid=31773, Unknown=0, NotChecked=0, Total=41412 [2022-10-15 21:43:12,431 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2065 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 5444 mSolverCounterSat, 1960 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 7404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1960 IncrementalHoareTripleChecker+Valid, 5444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:12,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 54 Invalid, 7404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1960 Valid, 5444 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-10-15 21:43:12,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-10-15 21:43:12,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2022-10-15 21:43:12,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 237 states have (on average 1.0717299578059072) internal successors, (254), 238 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:12,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 254 transitions. [2022-10-15 21:43:12,453 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 254 transitions. Word has length 117 [2022-10-15 21:43:12,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:12,453 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 254 transitions. [2022-10-15 21:43:12,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 138 states have (on average 2.5217391304347827) internal successors, (348), 139 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:12,454 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 254 transitions. [2022-10-15 21:43:12,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-15 21:43:12,456 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:12,456 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 1, 1, 1, 1, 1] [2022-10-15 21:43:12,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 21:43:12,662 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,SelfDestructingSolverStorable12 [2022-10-15 21:43:12,663 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:43:12,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:12,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1070548331, now seen corresponding path program 3 times [2022-10-15 21:43:12,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:12,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620192702] [2022-10-15 21:43:12,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:12,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:15,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2295 backedges. 0 proven. 2295 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:15,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:15,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620192702] [2022-10-15 21:43:15,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620192702] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:15,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054086530] [2022-10-15 21:43:15,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 21:43:15,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:15,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:15,804 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:43:15,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 21:43:15,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-10-15 21:43:15,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:43:15,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 21:43:15,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2295 backedges. 441 proven. 18 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2022-10-15 21:43:16,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:43:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2295 backedges. 441 proven. 18 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2022-10-15 21:43:16,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054086530] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:43:16,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:43:16,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 7, 7] total 75 [2022-10-15 21:43:16,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961688625] [2022-10-15 21:43:16,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:43:16,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-10-15 21:43:16,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:16,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-10-15 21:43:16,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=5239, Unknown=0, NotChecked=0, Total=5700 [2022-10-15 21:43:16,695 INFO L87 Difference]: Start difference. First operand 239 states and 254 transitions. Second operand has 76 states, 75 states have (on average 2.6666666666666665) internal successors, (200), 76 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:29,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:29,640 INFO L93 Difference]: Finished difference Result 239 states and 254 transitions. [2022-10-15 21:43:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-10-15 21:43:29,641 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 75 states have (on average 2.6666666666666665) internal successors, (200), 76 states have internal predecessors, (200), 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 158 [2022-10-15 21:43:29,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:29,644 INFO L225 Difference]: With dead ends: 239 [2022-10-15 21:43:29,644 INFO L226 Difference]: Without dead ends: 238 [2022-10-15 21:43:29,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5972 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=5886, Invalid=23184, Unknown=0, NotChecked=0, Total=29070 [2022-10-15 21:43:29,648 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 1008 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 2925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:29,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 51 Invalid, 2925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [755 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-15 21:43:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-10-15 21:43:29,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2022-10-15 21:43:29,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.0042194092827004) internal successors, (238), 237 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 238 transitions. [2022-10-15 21:43:29,678 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 238 transitions. Word has length 158 [2022-10-15 21:43:29,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:29,679 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 238 transitions. [2022-10-15 21:43:29,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 75 states have (on average 2.6666666666666665) internal successors, (200), 76 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:43:29,679 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 238 transitions. [2022-10-15 21:43:29,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-10-15 21:43:29,682 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:29,682 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1] [2022-10-15 21:43:29,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-10-15 21:43:29,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 21:43:29,898 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:43:29,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:29,899 INFO L85 PathProgramCache]: Analyzing trace with hash 688776169, now seen corresponding path program 5 times [2022-10-15 21:43:29,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:29,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236942844] [2022-10-15 21:43:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:29,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat