/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/ldv-memsafety/memleaks_test17_2-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:46:00,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:46:00,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:46:00,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 13:46:00,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:46:00,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:46:00,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:46:00,427 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 13:46:00,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:46:00,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:46:00,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:46:00,478 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:46:00,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:46:00,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:46:00,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:46:00,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:46:00,483 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:46:00,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:46:00,484 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:46:00,485 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:46:00,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:46:00,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:46:00,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:46:00,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:46:00,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:46:00,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:46:00,486 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:46:00,486 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:46:00,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:46:00,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:46:00,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:46:00,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:46:00,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:46:00,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:46:00,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:46:00,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:46:00,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:46:00,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:46:00,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:46:00,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:46:00,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:46:00,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:46:00,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:46:00,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:46:00,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:46:00,915 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:46:00,916 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:46:00,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i [2022-10-16 13:46:01,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2fc52be6/4053f7b772404694aed93f9a7ee27aa6/FLAG409ba89fe [2022-10-16 13:46:01,668 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:46:01,669 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-1.i [2022-10-16 13:46:01,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2fc52be6/4053f7b772404694aed93f9a7ee27aa6/FLAG409ba89fe [2022-10-16 13:46:01,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2fc52be6/4053f7b772404694aed93f9a7ee27aa6 [2022-10-16 13:46:01,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:46:01,946 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:46:01,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:46:01,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:46:01,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:46:01,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:46:01" (1/1) ... [2022-10-16 13:46:01,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407108a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:01, skipping insertion in model container [2022-10-16 13:46:01,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:46:01" (1/1) ... [2022-10-16 13:46:01,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:46:02,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:46:02,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:46:02,404 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:46:02,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:46:02,588 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:46:02,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02 WrapperNode [2022-10-16 13:46:02,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:46:02,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:46:02,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:46:02,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:46:02,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,649 INFO L138 Inliner]: procedures = 166, calls = 78, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 87 [2022-10-16 13:46:02,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:46:02,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:46:02,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:46:02,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:46:02,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,680 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:46:02,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:46:02,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:46:02,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:46:02,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:46:02,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:02,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 13:46:02,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 13:46:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:46:02,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:46:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:46:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:46:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:46:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:46:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:46:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:46:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:46:02,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:46:02,938 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:46:02,940 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:46:03,224 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:46:03,238 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:46:03,238 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 13:46:03,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:46:03 BoogieIcfgContainer [2022-10-16 13:46:03,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:46:03,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:46:03,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:46:03,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:46:03,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:46:01" (1/3) ... [2022-10-16 13:46:03,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287644f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:46:03, skipping insertion in model container [2022-10-16 13:46:03,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (2/3) ... [2022-10-16 13:46:03,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@287644f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:46:03, skipping insertion in model container [2022-10-16 13:46:03,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:46:03" (3/3) ... [2022-10-16 13:46:03,253 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-1.i [2022-10-16 13:46:03,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:46:03,276 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 13:46:03,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:46:03,345 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;@5652888c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:46:03,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 13:46:03,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 44 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 13:46:03,360 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:03,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:03,361 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:03,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:03,368 INFO L85 PathProgramCache]: Analyzing trace with hash -343254715, now seen corresponding path program 1 times [2022-10-16 13:46:03,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:03,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820005166] [2022-10-16 13:46:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:03,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:03,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:03,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:03,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:03,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:03,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820005166] [2022-10-16 13:46:03,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820005166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:03,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:03,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:03,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960015851] [2022-10-16 13:46:03,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:03,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:03,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:03,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:03,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:03,810 INFO L87 Difference]: Start difference. First operand has 48 states, 34 states have (on average 1.6176470588235294) internal successors, (55), 44 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:03,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:03,938 INFO L93 Difference]: Finished difference Result 126 states and 155 transitions. [2022-10-16 13:46:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:03,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-10-16 13:46:03,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:03,954 INFO L225 Difference]: With dead ends: 126 [2022-10-16 13:46:03,955 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 13:46:03,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:03,964 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 42 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:03,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 231 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 13:46:04,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 47. [2022-10-16 13:46:04,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 43 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2022-10-16 13:46:04,012 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 12 [2022-10-16 13:46:04,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:04,013 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2022-10-16 13:46:04,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:04,014 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2022-10-16 13:46:04,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 13:46:04,015 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:04,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:04,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:46:04,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:04,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:04,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2051013006, now seen corresponding path program 1 times [2022-10-16 13:46:04,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:04,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158558885] [2022-10-16 13:46:04,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:04,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:04,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:04,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:04,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:04,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:04,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158558885] [2022-10-16 13:46:04,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158558885] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:04,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:04,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:46:04,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628959884] [2022-10-16 13:46:04,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:04,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:04,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:04,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:04,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:04,195 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:04,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:04,277 INFO L93 Difference]: Finished difference Result 81 states and 93 transitions. [2022-10-16 13:46:04,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:04,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-10-16 13:46:04,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:04,279 INFO L225 Difference]: With dead ends: 81 [2022-10-16 13:46:04,279 INFO L226 Difference]: Without dead ends: 49 [2022-10-16 13:46:04,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:04,284 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 45 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:04,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 126 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:04,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-16 13:46:04,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2022-10-16 13:46:04,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 43 states have internal predecessors, (49), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:04,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2022-10-16 13:46:04,309 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 13 [2022-10-16 13:46:04,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:04,309 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2022-10-16 13:46:04,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:04,310 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2022-10-16 13:46:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 13:46:04,311 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:04,311 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:04,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:46:04,311 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:04,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:04,313 INFO L85 PathProgramCache]: Analyzing trace with hash 10342017, now seen corresponding path program 1 times [2022-10-16 13:46:04,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:04,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798499153] [2022-10-16 13:46:04,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:04,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:04,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:04,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:04,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:04,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798499153] [2022-10-16 13:46:04,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798499153] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:04,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984556300] [2022-10-16 13:46:04,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:04,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:04,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:04,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:04,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 13:46:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:04,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:04,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:04,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:04,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:04,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984556300] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:04,711 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:04,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-10-16 13:46:04,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002899799] [2022-10-16 13:46:04,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:04,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 13:46:04,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:04,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 13:46:04,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:46:04,715 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 13 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:04,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:04,966 INFO L93 Difference]: Finished difference Result 149 states and 176 transitions. [2022-10-16 13:46:04,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 13:46:04,967 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-10-16 13:46:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:04,969 INFO L225 Difference]: With dead ends: 149 [2022-10-16 13:46:04,969 INFO L226 Difference]: Without dead ends: 148 [2022-10-16 13:46:04,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-10-16 13:46:04,972 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 178 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:04,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 475 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:04,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-10-16 13:46:04,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 58. [2022-10-16 13:46:04,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 54 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:04,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2022-10-16 13:46:04,988 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 16 [2022-10-16 13:46:04,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:04,989 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2022-10-16 13:46:04,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:05,015 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2022-10-16 13:46:05,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 13:46:05,016 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:05,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:05,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:05,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:05,229 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:05,231 INFO L85 PathProgramCache]: Analyzing trace with hash 320551094, now seen corresponding path program 1 times [2022-10-16 13:46:05,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:05,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579613069] [2022-10-16 13:46:05,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:05,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:46:05,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:05,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579613069] [2022-10-16 13:46:05,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579613069] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:05,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:05,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:46:05,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122152951] [2022-10-16 13:46:05,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:05,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:46:05,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:05,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:46:05,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:46:05,345 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:05,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:05,390 INFO L93 Difference]: Finished difference Result 87 states and 104 transitions. [2022-10-16 13:46:05,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:46:05,391 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-10-16 13:46:05,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:05,393 INFO L225 Difference]: With dead ends: 87 [2022-10-16 13:46:05,393 INFO L226 Difference]: Without dead ends: 85 [2022-10-16 13:46:05,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:46:05,395 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 28 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:05,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 124 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:05,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-16 13:46:05,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 64. [2022-10-16 13:46:05,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 50 states have (on average 1.44) internal successors, (72), 59 states have internal predecessors, (72), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:05,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2022-10-16 13:46:05,408 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 17 [2022-10-16 13:46:05,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:05,409 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2022-10-16 13:46:05,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:05,409 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2022-10-16 13:46:05,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 13:46:05,410 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:05,410 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:05,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:46:05,410 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:05,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:05,411 INFO L85 PathProgramCache]: Analyzing trace with hash 320602586, now seen corresponding path program 1 times [2022-10-16 13:46:05,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:05,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579547082] [2022-10-16 13:46:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:05,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:05,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:05,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579547082] [2022-10-16 13:46:05,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579547082] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:05,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856494800] [2022-10-16 13:46:05,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:05,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:05,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:05,511 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:05,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 13:46:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:05,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:05,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:46:05,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856494800] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:05,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:46:05,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-10-16 13:46:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698153097] [2022-10-16 13:46:05,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:05,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:46:05,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:05,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:46:05,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:46:05,620 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:05,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:05,671 INFO L93 Difference]: Finished difference Result 64 states and 78 transitions. [2022-10-16 13:46:05,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:46:05,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-10-16 13:46:05,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:05,673 INFO L225 Difference]: With dead ends: 64 [2022-10-16 13:46:05,673 INFO L226 Difference]: Without dead ends: 63 [2022-10-16 13:46:05,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:46:05,675 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 69 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:05,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 133 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:05,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-16 13:46:05,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-16 13:46:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.38) internal successors, (69), 58 states have internal predecessors, (69), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:05,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2022-10-16 13:46:05,687 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 17 [2022-10-16 13:46:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:05,687 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2022-10-16 13:46:05,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:05,687 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2022-10-16 13:46:05,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 13:46:05,688 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:05,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:05,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:05,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:05,904 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:05,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:05,906 INFO L85 PathProgramCache]: Analyzing trace with hash 753847232, now seen corresponding path program 1 times [2022-10-16 13:46:05,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:05,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163025351] [2022-10-16 13:46:05,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:05,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:46:05,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:05,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163025351] [2022-10-16 13:46:05,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163025351] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:05,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:05,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:46:05,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349999184] [2022-10-16 13:46:05,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:05,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:05,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:05,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:05,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:05,992 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:06,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:06,058 INFO L93 Difference]: Finished difference Result 93 states and 109 transitions. [2022-10-16 13:46:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:46:06,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-10-16 13:46:06,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:06,063 INFO L225 Difference]: With dead ends: 93 [2022-10-16 13:46:06,063 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 13:46:06,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:06,069 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 38 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:06,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 152 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:06,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 13:46:06,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 64. [2022-10-16 13:46:06,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 59 states have internal predecessors, (70), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:06,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2022-10-16 13:46:06,089 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 21 [2022-10-16 13:46:06,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:06,090 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2022-10-16 13:46:06,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:06,090 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2022-10-16 13:46:06,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 13:46:06,091 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:06,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:06,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:46:06,092 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:06,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:06,092 INFO L85 PathProgramCache]: Analyzing trace with hash -570615845, now seen corresponding path program 1 times [2022-10-16 13:46:06,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:06,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243703822] [2022-10-16 13:46:06,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:06,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:46:06,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:06,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243703822] [2022-10-16 13:46:06,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243703822] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:06,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:06,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:06,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012063718] [2022-10-16 13:46:06,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:06,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:06,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:06,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:06,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:06,203 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:06,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:06,243 INFO L93 Difference]: Finished difference Result 72 states and 86 transitions. [2022-10-16 13:46:06,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:06,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-10-16 13:46:06,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:06,245 INFO L225 Difference]: With dead ends: 72 [2022-10-16 13:46:06,245 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 13:46:06,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:06,252 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 6 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:06,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 172 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:06,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 13:46:06,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2022-10-16 13:46:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.3454545454545455) internal successors, (74), 63 states have internal predecessors, (74), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2022-10-16 13:46:06,275 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 24 [2022-10-16 13:46:06,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:06,276 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2022-10-16 13:46:06,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:06,276 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2022-10-16 13:46:06,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 13:46:06,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:06,279 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:06,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 13:46:06,280 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:06,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:06,281 INFO L85 PathProgramCache]: Analyzing trace with hash 536306133, now seen corresponding path program 1 times [2022-10-16 13:46:06,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:06,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84951918] [2022-10-16 13:46:06,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:06,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:46:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,374 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:46:06,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:06,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84951918] [2022-10-16 13:46:06,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84951918] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:06,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:06,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:06,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125295457] [2022-10-16 13:46:06,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:06,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:06,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:06,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:06,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:06,377 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:06,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:06,433 INFO L93 Difference]: Finished difference Result 87 states and 101 transitions. [2022-10-16 13:46:06,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:06,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-10-16 13:46:06,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:06,435 INFO L225 Difference]: With dead ends: 87 [2022-10-16 13:46:06,435 INFO L226 Difference]: Without dead ends: 85 [2022-10-16 13:46:06,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:06,436 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 19 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:06,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 158 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:06,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-16 13:46:06,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 71. [2022-10-16 13:46:06,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 66 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:06,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2022-10-16 13:46:06,447 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 25 [2022-10-16 13:46:06,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:06,448 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2022-10-16 13:46:06,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:06,448 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2022-10-16 13:46:06,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 13:46:06,449 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:06,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:06,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 13:46:06,450 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:06,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:06,450 INFO L85 PathProgramCache]: Analyzing trace with hash -182249965, now seen corresponding path program 1 times [2022-10-16 13:46:06,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:06,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392642112] [2022-10-16 13:46:06,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:06,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:46:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:46:06,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:06,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392642112] [2022-10-16 13:46:06,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392642112] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:06,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576203249] [2022-10-16 13:46:06,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:06,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:06,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:06,598 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:06,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 13:46:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:06,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:46:06,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:06,860 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:46:06,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576203249] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:06,860 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:06,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2022-10-16 13:46:06,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483611973] [2022-10-16 13:46:06,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:06,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:46:06,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:06,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:46:06,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:46:06,864 INFO L87 Difference]: Start difference. First operand 71 states and 83 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 13 states have internal predecessors, (50), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 13:46:07,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:07,103 INFO L93 Difference]: Finished difference Result 160 states and 188 transitions. [2022-10-16 13:46:07,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:46:07,104 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 13 states have internal predecessors, (50), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 28 [2022-10-16 13:46:07,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:07,106 INFO L225 Difference]: With dead ends: 160 [2022-10-16 13:46:07,106 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 13:46:07,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2022-10-16 13:46:07,110 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 149 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:07,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 254 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:07,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 13:46:07,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 76. [2022-10-16 13:46:07,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 70 states have internal predecessors, (81), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 13:46:07,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 89 transitions. [2022-10-16 13:46:07,131 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 89 transitions. Word has length 28 [2022-10-16 13:46:07,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:07,132 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 89 transitions. [2022-10-16 13:46:07,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 13 states have internal predecessors, (50), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 13:46:07,132 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 89 transitions. [2022-10-16 13:46:07,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 13:46:07,136 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:07,136 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:07,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:07,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:07,349 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:07,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:07,350 INFO L85 PathProgramCache]: Analyzing trace with hash -95012299, now seen corresponding path program 2 times [2022-10-16 13:46:07,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:07,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047781230] [2022-10-16 13:46:07,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:07,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:07,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:07,576 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:07,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:07,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047781230] [2022-10-16 13:46:07,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047781230] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:07,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814599357] [2022-10-16 13:46:07,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:46:07,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:07,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:07,587 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:07,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 13:46:07,653 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:46:07,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:46:07,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 13:46:07,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:07,713 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 13:46:07,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:07,779 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 13:46:07,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814599357] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:07,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:07,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4, 4] total 18 [2022-10-16 13:46:07,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866861748] [2022-10-16 13:46:07,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:07,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 13:46:07,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:07,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 13:46:07,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-10-16 13:46:07,781 INFO L87 Difference]: Start difference. First operand 76 states and 89 transitions. Second operand has 19 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:08,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:08,074 INFO L93 Difference]: Finished difference Result 225 states and 283 transitions. [2022-10-16 13:46:08,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 13:46:08,075 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 28 [2022-10-16 13:46:08,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:08,077 INFO L225 Difference]: With dead ends: 225 [2022-10-16 13:46:08,077 INFO L226 Difference]: Without dead ends: 224 [2022-10-16 13:46:08,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2022-10-16 13:46:08,079 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 289 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:08,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 502 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:08,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-10-16 13:46:08,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 69. [2022-10-16 13:46:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 63 states have internal predecessors, (73), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 13:46:08,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2022-10-16 13:46:08,096 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 28 [2022-10-16 13:46:08,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:08,096 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2022-10-16 13:46:08,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:08,097 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2022-10-16 13:46:08,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 13:46:08,097 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:08,097 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:08,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:08,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:08,313 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:08,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:08,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1428402417, now seen corresponding path program 1 times [2022-10-16 13:46:08,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:08,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793004008] [2022-10-16 13:46:08,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:08,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,478 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-16 13:46:08,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:08,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793004008] [2022-10-16 13:46:08,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793004008] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:08,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:08,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:46:08,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592600013] [2022-10-16 13:46:08,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:08,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 13:46:08,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:08,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 13:46:08,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:46:08,481 INFO L87 Difference]: Start difference. First operand 69 states and 81 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:08,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:08,581 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2022-10-16 13:46:08,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:46:08,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-10-16 13:46:08,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:08,583 INFO L225 Difference]: With dead ends: 98 [2022-10-16 13:46:08,583 INFO L226 Difference]: Without dead ends: 83 [2022-10-16 13:46:08,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:46:08,584 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 31 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:08,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 224 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:08,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-10-16 13:46:08,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 69. [2022-10-16 13:46:08,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 63 states have internal predecessors, (72), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 13:46:08,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2022-10-16 13:46:08,597 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 36 [2022-10-16 13:46:08,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:08,597 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2022-10-16 13:46:08,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:08,598 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2022-10-16 13:46:08,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 13:46:08,598 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:08,599 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:08,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 13:46:08,599 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:08,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:08,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1267023664, now seen corresponding path program 1 times [2022-10-16 13:46:08,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:08,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407611756] [2022-10-16 13:46:08,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:08,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 13:46:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,701 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 13:46:08,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:08,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407611756] [2022-10-16 13:46:08,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407611756] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:08,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104571236] [2022-10-16 13:46:08,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:08,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:08,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:08,703 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:08,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 13:46:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 13:46:08,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:46:08,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:09,062 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:46:09,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104571236] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:09,063 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:09,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 22 [2022-10-16 13:46:09,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008305170] [2022-10-16 13:46:09,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:09,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 13:46:09,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:09,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 13:46:09,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:46:09,066 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 21 states have internal predecessors, (68), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 13:46:09,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:09,470 INFO L93 Difference]: Finished difference Result 174 states and 203 transitions. [2022-10-16 13:46:09,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 13:46:09,471 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 21 states have internal predecessors, (68), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 37 [2022-10-16 13:46:09,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:09,472 INFO L225 Difference]: With dead ends: 174 [2022-10-16 13:46:09,473 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 13:46:09,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 13:46:09,475 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 164 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:09,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 457 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:46:09,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 13:46:09,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 86. [2022-10-16 13:46:09,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 73 states have (on average 1.2191780821917808) internal successors, (89), 80 states have internal predecessors, (89), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 13:46:09,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 97 transitions. [2022-10-16 13:46:09,497 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 97 transitions. Word has length 37 [2022-10-16 13:46:09,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:09,497 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 97 transitions. [2022-10-16 13:46:09,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.090909090909091) internal successors, (68), 21 states have internal predecessors, (68), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 13:46:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 97 transitions. [2022-10-16 13:46:09,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 13:46:09,500 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:09,500 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:09,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:09,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 13:46:09,714 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:09,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:09,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1245170693, now seen corresponding path program 1 times [2022-10-16 13:46:09,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:09,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018487324] [2022-10-16 13:46:09,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:09,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:10,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:46:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:46:10,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:10,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018487324] [2022-10-16 13:46:10,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018487324] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:10,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100858557] [2022-10-16 13:46:10,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:10,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:10,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:10,196 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:10,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 13:46:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:10,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 13:46:10,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:10,644 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:46:10,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:10,869 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:46:10,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100858557] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:10,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:10,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 18] total 39 [2022-10-16 13:46:10,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916934115] [2022-10-16 13:46:10,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:10,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-10-16 13:46:10,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:10,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-10-16 13:46:10,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 13:46:10,873 INFO L87 Difference]: Start difference. First operand 86 states and 97 transitions. Second operand has 39 states, 39 states have (on average 2.4358974358974357) internal successors, (95), 38 states have internal predecessors, (95), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-16 13:46:11,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:11,194 INFO L93 Difference]: Finished difference Result 152 states and 178 transitions. [2022-10-16 13:46:11,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 13:46:11,195 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.4358974358974357) internal successors, (95), 38 states have internal predecessors, (95), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2022-10-16 13:46:11,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:11,196 INFO L225 Difference]: With dead ends: 152 [2022-10-16 13:46:11,196 INFO L226 Difference]: Without dead ends: 100 [2022-10-16 13:46:11,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 84 SyntacticMatches, 11 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1318 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=630, Invalid=1820, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 13:46:11,199 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 163 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:11,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 401 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:11,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-16 13:46:11,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2022-10-16 13:46:11,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 85 states have (on average 1.188235294117647) internal successors, (101), 92 states have internal predecessors, (101), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 13:46:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2022-10-16 13:46:11,213 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 56 [2022-10-16 13:46:11,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:11,213 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2022-10-16 13:46:11,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.4358974358974357) internal successors, (95), 38 states have internal predecessors, (95), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-16 13:46:11,213 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2022-10-16 13:46:11,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-16 13:46:11,214 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:11,214 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:11,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:11,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:11,429 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:11,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:11,430 INFO L85 PathProgramCache]: Analyzing trace with hash -24677447, now seen corresponding path program 2 times [2022-10-16 13:46:11,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:11,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218180944] [2022-10-16 13:46:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:11,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:11,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:11,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218180944] [2022-10-16 13:46:11,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218180944] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:11,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179964584] [2022-10-16 13:46:11,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:46:11,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:11,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:11,675 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:11,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 13:46:11,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:46:11,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:46:11,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 13:46:11,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:11,793 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-10-16 13:46:11,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:46:11,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179964584] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:11,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:46:11,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-10-16 13:46:11,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86419643] [2022-10-16 13:46:11,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:11,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:11,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:11,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:11,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:46:11,795 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:11,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:11,860 INFO L93 Difference]: Finished difference Result 98 states and 109 transitions. [2022-10-16 13:46:11,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:11,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2022-10-16 13:46:11,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:11,862 INFO L225 Difference]: With dead ends: 98 [2022-10-16 13:46:11,862 INFO L226 Difference]: Without dead ends: 97 [2022-10-16 13:46:11,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:46:11,863 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 35 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:11,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 117 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:11,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-16 13:46:11,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-10-16 13:46:11,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 85 states have (on average 1.1764705882352942) internal successors, (100), 91 states have internal predecessors, (100), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 13:46:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2022-10-16 13:46:11,876 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 68 [2022-10-16 13:46:11,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:11,877 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2022-10-16 13:46:11,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:11,877 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2022-10-16 13:46:11,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-10-16 13:46:11,878 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:11,878 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:11,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:12,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:12,094 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:12,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:12,095 INFO L85 PathProgramCache]: Analyzing trace with hash -765000752, now seen corresponding path program 1 times [2022-10-16 13:46:12,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:12,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682392922] [2022-10-16 13:46:12,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:12,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-10-16 13:46:12,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:12,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682392922] [2022-10-16 13:46:12,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682392922] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:12,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:12,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:12,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940629159] [2022-10-16 13:46:12,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:12,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:12,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:12,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:12,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:12,233 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:12,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:12,263 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2022-10-16 13:46:12,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:12,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 69 [2022-10-16 13:46:12,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:12,265 INFO L225 Difference]: With dead ends: 99 [2022-10-16 13:46:12,265 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 13:46:12,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:12,268 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 5 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:12,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 161 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:12,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 13:46:12,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2022-10-16 13:46:12,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 90 states have internal predecessors, (99), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 13:46:12,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 107 transitions. [2022-10-16 13:46:12,281 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 107 transitions. Word has length 69 [2022-10-16 13:46:12,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:12,281 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 107 transitions. [2022-10-16 13:46:12,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:12,282 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 107 transitions. [2022-10-16 13:46:12,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 13:46:12,282 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:12,282 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:12,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 13:46:12,283 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:12,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:12,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1533450930, now seen corresponding path program 1 times [2022-10-16 13:46:12,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:12,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760565163] [2022-10-16 13:46:12,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:12,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:46:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 13:46:12,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:12,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760565163] [2022-10-16 13:46:12,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760565163] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:12,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154487096] [2022-10-16 13:46:12,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:12,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:12,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:12,466 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:12,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 13:46:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:12,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 13:46:12,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 13:46:12,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154487096] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:12,741 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:12,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-10-16 13:46:12,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277898331] [2022-10-16 13:46:12,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:12,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 13:46:12,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:12,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 13:46:12,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:46:12,743 INFO L87 Difference]: Start difference. First operand 96 states and 107 transitions. Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:46:12,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:12,931 INFO L93 Difference]: Finished difference Result 184 states and 214 transitions. [2022-10-16 13:46:12,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 13:46:12,931 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 72 [2022-10-16 13:46:12,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:12,933 INFO L225 Difference]: With dead ends: 184 [2022-10-16 13:46:12,933 INFO L226 Difference]: Without dead ends: 182 [2022-10-16 13:46:12,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-10-16 13:46:12,934 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 145 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:12,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 215 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:12,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-10-16 13:46:12,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 113. [2022-10-16 13:46:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 100 states have (on average 1.2) internal successors, (120), 105 states have internal predecessors, (120), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:46:12,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 132 transitions. [2022-10-16 13:46:12,949 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 132 transitions. Word has length 72 [2022-10-16 13:46:12,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:12,949 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 132 transitions. [2022-10-16 13:46:12,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:46:12,949 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 132 transitions. [2022-10-16 13:46:12,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 13:46:12,950 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:12,950 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:12,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:13,164 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,SelfDestructingSolverStorable15 [2022-10-16 13:46:13,164 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:13,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:13,165 INFO L85 PathProgramCache]: Analyzing trace with hash -390615159, now seen corresponding path program 1 times [2022-10-16 13:46:13,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:13,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474877943] [2022-10-16 13:46:13,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:13,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,338 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-10-16 13:46:13,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:13,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474877943] [2022-10-16 13:46:13,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474877943] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:13,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:13,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:46:13,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764483438] [2022-10-16 13:46:13,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:13,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:46:13,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:13,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:46:13,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:13,340 INFO L87 Difference]: Start difference. First operand 113 states and 132 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:13,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:13,393 INFO L93 Difference]: Finished difference Result 206 states and 251 transitions. [2022-10-16 13:46:13,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:46:13,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 71 [2022-10-16 13:46:13,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:13,395 INFO L225 Difference]: With dead ends: 206 [2022-10-16 13:46:13,395 INFO L226 Difference]: Without dead ends: 180 [2022-10-16 13:46:13,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:46:13,396 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 28 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:13,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 220 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:13,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2022-10-16 13:46:13,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 125. [2022-10-16 13:46:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 111 states have (on average 1.1801801801801801) internal successors, (131), 112 states have internal predecessors, (131), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 11 states have call predecessors, (12), 6 states have call successors, (12) [2022-10-16 13:46:13,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 149 transitions. [2022-10-16 13:46:13,412 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 149 transitions. Word has length 71 [2022-10-16 13:46:13,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:13,412 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 149 transitions. [2022-10-16 13:46:13,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:13,412 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 149 transitions. [2022-10-16 13:46:13,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 13:46:13,413 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:13,413 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:13,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 13:46:13,414 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:13,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:13,414 INFO L85 PathProgramCache]: Analyzing trace with hash 962694538, now seen corresponding path program 1 times [2022-10-16 13:46:13,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:13,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467785339] [2022-10-16 13:46:13,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:13,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,559 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:13,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:13,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467785339] [2022-10-16 13:46:13,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467785339] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:13,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777163567] [2022-10-16 13:46:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:13,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:13,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:13,563 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:13,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 13:46:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:13,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:13,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:13,769 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:13,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777163567] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:13,770 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:13,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-10-16 13:46:13,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711581828] [2022-10-16 13:46:13,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:13,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 13:46:13,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:13,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 13:46:13,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:46:13,773 INFO L87 Difference]: Start difference. First operand 125 states and 149 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:13,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:13,890 INFO L93 Difference]: Finished difference Result 141 states and 167 transitions. [2022-10-16 13:46:13,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 13:46:13,890 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 71 [2022-10-16 13:46:13,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:13,892 INFO L225 Difference]: With dead ends: 141 [2022-10-16 13:46:13,892 INFO L226 Difference]: Without dead ends: 140 [2022-10-16 13:46:13,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-10-16 13:46:13,893 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 23 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:13,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 279 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:13,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-10-16 13:46:13,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 136. [2022-10-16 13:46:13,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 122 states have (on average 1.180327868852459) internal successors, (144), 123 states have internal predecessors, (144), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 11 states have call predecessors, (12), 6 states have call successors, (12) [2022-10-16 13:46:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2022-10-16 13:46:13,912 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 71 [2022-10-16 13:46:13,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:13,912 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2022-10-16 13:46:13,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:13,913 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2022-10-16 13:46:13,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 13:46:13,914 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:13,914 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:13,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:14,128 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,SelfDestructingSolverStorable17 [2022-10-16 13:46:14,128 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:14,129 INFO L85 PathProgramCache]: Analyzing trace with hash -292338490, now seen corresponding path program 1 times [2022-10-16 13:46:14,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:14,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108962932] [2022-10-16 13:46:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:14,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:46:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,325 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 13:46:14,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:14,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108962932] [2022-10-16 13:46:14,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108962932] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:14,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688359655] [2022-10-16 13:46:14,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:14,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:14,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:14,327 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:14,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 13:46:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:14,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:14,525 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 13:46:14,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:46:14,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688359655] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:14,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:46:14,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-10-16 13:46:14,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143936041] [2022-10-16 13:46:14,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:14,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:46:14,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:14,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:46:14,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:46:14,527 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:14,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:14,589 INFO L93 Difference]: Finished difference Result 159 states and 187 transitions. [2022-10-16 13:46:14,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:46:14,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 73 [2022-10-16 13:46:14,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:14,592 INFO L225 Difference]: With dead ends: 159 [2022-10-16 13:46:14,592 INFO L226 Difference]: Without dead ends: 157 [2022-10-16 13:46:14,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:46:14,593 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 55 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:14,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 101 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:14,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-10-16 13:46:14,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 132. [2022-10-16 13:46:14,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 120 states have (on average 1.15) internal successors, (138), 119 states have internal predecessors, (138), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 11 states have call predecessors, (12), 6 states have call successors, (12) [2022-10-16 13:46:14,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 156 transitions. [2022-10-16 13:46:14,615 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 156 transitions. Word has length 73 [2022-10-16 13:46:14,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:14,615 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 156 transitions. [2022-10-16 13:46:14,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 156 transitions. [2022-10-16 13:46:14,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 13:46:14,616 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:14,616 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:14,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:14,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:14,832 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:14,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:14,833 INFO L85 PathProgramCache]: Analyzing trace with hash -221240269, now seen corresponding path program 1 times [2022-10-16 13:46:14,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:14,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76968246] [2022-10-16 13:46:14,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:14,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,986 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:14,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:14,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76968246] [2022-10-16 13:46:14,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76968246] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:14,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617798830] [2022-10-16 13:46:14,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:14,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:14,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:14,988 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:14,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 13:46:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:15,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:15,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:46:15,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617798830] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:15,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:46:15,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-10-16 13:46:15,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223358189] [2022-10-16 13:46:15,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:15,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:46:15,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:15,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:46:15,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:46:15,148 INFO L87 Difference]: Start difference. First operand 132 states and 156 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:15,188 INFO L93 Difference]: Finished difference Result 132 states and 156 transitions. [2022-10-16 13:46:15,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:46:15,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 72 [2022-10-16 13:46:15,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:15,189 INFO L225 Difference]: With dead ends: 132 [2022-10-16 13:46:15,190 INFO L226 Difference]: Without dead ends: 131 [2022-10-16 13:46:15,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:46:15,191 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 7 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:15,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 145 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:15,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-10-16 13:46:15,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-10-16 13:46:15,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 120 states have (on average 1.125) internal successors, (135), 118 states have internal predecessors, (135), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 11 states have call predecessors, (12), 6 states have call successors, (12) [2022-10-16 13:46:15,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2022-10-16 13:46:15,214 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 72 [2022-10-16 13:46:15,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:15,215 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2022-10-16 13:46:15,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:15,215 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2022-10-16 13:46:15,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 13:46:15,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:15,216 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:15,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:15,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:15,431 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:15,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:15,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1104218818, now seen corresponding path program 2 times [2022-10-16 13:46:15,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:15,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136753577] [2022-10-16 13:46:15,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:15,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,731 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:15,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:15,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136753577] [2022-10-16 13:46:15,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136753577] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:15,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893416183] [2022-10-16 13:46:15,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:46:15,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:15,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:15,735 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:15,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 13:46:15,844 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:46:15,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:46:15,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:46:15,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:15,967 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-10-16 13:46:15,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:16,101 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-10-16 13:46:16,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893416183] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:16,102 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:16,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 20 [2022-10-16 13:46:16,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126074893] [2022-10-16 13:46:16,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:16,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 13:46:16,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:16,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 13:46:16,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2022-10-16 13:46:16,104 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand has 21 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:16,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:16,329 INFO L93 Difference]: Finished difference Result 137 states and 160 transitions. [2022-10-16 13:46:16,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 13:46:16,329 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 83 [2022-10-16 13:46:16,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:16,331 INFO L225 Difference]: With dead ends: 137 [2022-10-16 13:46:16,331 INFO L226 Difference]: Without dead ends: 100 [2022-10-16 13:46:16,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 13:46:16,333 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 69 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:16,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 243 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:16,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-16 13:46:16,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 92. [2022-10-16 13:46:16,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 82 states have (on average 1.0609756097560976) internal successors, (87), 83 states have internal predecessors, (87), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2022-10-16 13:46:16,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 105 transitions. [2022-10-16 13:46:16,342 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 105 transitions. Word has length 83 [2022-10-16 13:46:16,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:16,343 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 105 transitions. [2022-10-16 13:46:16,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:16,343 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 105 transitions. [2022-10-16 13:46:16,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-10-16 13:46:16,344 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:16,344 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:16,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:16,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-10-16 13:46:16,560 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:16,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:16,561 INFO L85 PathProgramCache]: Analyzing trace with hash -646931238, now seen corresponding path program 2 times [2022-10-16 13:46:16,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:16,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655131821] [2022-10-16 13:46:16,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:16,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:16,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:16,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:16,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:46:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:46:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:16,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 13:46:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:16,690 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2022-10-16 13:46:16,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:16,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655131821] [2022-10-16 13:46:16,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655131821] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:16,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:16,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:16,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626131064] [2022-10-16 13:46:16,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:16,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:16,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:16,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:16,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:16,692 INFO L87 Difference]: Start difference. First operand 92 states and 105 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:16,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:16,724 INFO L93 Difference]: Finished difference Result 92 states and 105 transitions. [2022-10-16 13:46:16,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:16,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 97 [2022-10-16 13:46:16,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:16,725 INFO L225 Difference]: With dead ends: 92 [2022-10-16 13:46:16,725 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 13:46:16,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:16,726 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:16,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 78 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:16,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 13:46:16,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2022-10-16 13:46:16,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 78 states have (on average 1.0384615384615385) internal successors, (81), 78 states have internal predecessors, (81), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:46:16,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 93 transitions. [2022-10-16 13:46:16,735 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 93 transitions. Word has length 97 [2022-10-16 13:46:16,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:16,736 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 93 transitions. [2022-10-16 13:46:16,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:16,736 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 93 transitions. [2022-10-16 13:46:16,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-16 13:46:16,737 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:16,737 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:16,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-16 13:46:16,737 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:16,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:16,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1447584249, now seen corresponding path program 2 times [2022-10-16 13:46:16,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:16,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512627149] [2022-10-16 13:46:16,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:16,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:17,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:17,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:17,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:46:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:17,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:46:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:17,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 13:46:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:17,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 13:46:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:17,098 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-10-16 13:46:17,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:17,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512627149] [2022-10-16 13:46:17,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512627149] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:17,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152692720] [2022-10-16 13:46:17,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:46:17,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:17,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:17,100 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:17,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 13:46:17,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:46:17,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:46:17,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 13:46:17,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:17,373 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-10-16 13:46:17,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:17,584 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-10-16 13:46:17,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152692720] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:17,585 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:17,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2022-10-16 13:46:17,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026167402] [2022-10-16 13:46:17,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:17,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 13:46:17,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:17,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 13:46:17,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2022-10-16 13:46:17,588 INFO L87 Difference]: Start difference. First operand 86 states and 93 transitions. Second operand has 25 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 24 states have internal predecessors, (80), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:46:17,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:17,891 INFO L93 Difference]: Finished difference Result 132 states and 161 transitions. [2022-10-16 13:46:17,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 13:46:17,892 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 24 states have internal predecessors, (80), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 105 [2022-10-16 13:46:17,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:17,893 INFO L225 Difference]: With dead ends: 132 [2022-10-16 13:46:17,893 INFO L226 Difference]: Without dead ends: 131 [2022-10-16 13:46:17,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 13:46:17,895 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 51 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:17,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 278 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:46:17,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-10-16 13:46:17,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2022-10-16 13:46:17,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 114 states have (on average 1.0263157894736843) internal successors, (117), 114 states have internal predecessors, (117), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:46:17,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 141 transitions. [2022-10-16 13:46:17,909 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 141 transitions. Word has length 105 [2022-10-16 13:46:17,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:17,910 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 141 transitions. [2022-10-16 13:46:17,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 24 states have internal predecessors, (80), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:46:17,910 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 141 transitions. [2022-10-16 13:46:17,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-10-16 13:46:17,912 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:17,912 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:17,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:18,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 13:46:18,126 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:18,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:18,127 INFO L85 PathProgramCache]: Analyzing trace with hash -102855527, now seen corresponding path program 3 times [2022-10-16 13:46:18,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:18,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840577530] [2022-10-16 13:46:18,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:18,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:46:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:46:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 13:46:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 13:46:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 13:46:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-16 13:46:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 13:46:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:46:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-10-16 13:46:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-16 13:46:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:19,329 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 311 proven. 64 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2022-10-16 13:46:19,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:19,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840577530] [2022-10-16 13:46:19,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840577530] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:19,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703325364] [2022-10-16 13:46:19,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 13:46:19,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:19,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:19,333 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:19,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 13:46:19,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-10-16 13:46:19,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:46:19,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:46:19,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2022-10-16 13:46:19,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:20,077 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2022-10-16 13:46:20,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703325364] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:20,078 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:20,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 5, 5] total 32 [2022-10-16 13:46:20,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194736392] [2022-10-16 13:46:20,079 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:20,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 13:46:20,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:20,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 13:46:20,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=838, Unknown=0, NotChecked=0, Total=992 [2022-10-16 13:46:20,083 INFO L87 Difference]: Start difference. First operand 128 states and 141 transitions. Second operand has 32 states, 32 states have (on average 3.46875) internal successors, (111), 31 states have internal predecessors, (111), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-16 13:46:20,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:20,903 INFO L93 Difference]: Finished difference Result 136 states and 159 transitions. [2022-10-16 13:46:20,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 13:46:20,904 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.46875) internal successors, (111), 31 states have internal predecessors, (111), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 171 [2022-10-16 13:46:20,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:20,905 INFO L225 Difference]: With dead ends: 136 [2022-10-16 13:46:20,905 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 13:46:20,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=815, Invalid=2845, Unknown=0, NotChecked=0, Total=3660 [2022-10-16 13:46:20,909 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 53 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:20,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 484 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:46:20,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 13:46:20,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 13:46:20,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 13:46:20,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 13:46:20,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2022-10-16 13:46:20,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:20,910 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 13:46:20,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.46875) internal successors, (111), 31 states have internal predecessors, (111), 17 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-16 13:46:20,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 13:46:20,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 13:46:20,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-10-16 13:46:20,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-10-16 13:46:20,914 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-10-16 13:46:20,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-10-16 13:46:20,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-10-16 13:46:20,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-10-16 13:46:20,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-10-16 13:46:20,915 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-10-16 13:46:20,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-10-16 13:46:20,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-10-16 13:46:20,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:21,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:21,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 13:47:30,555 WARN L233 SmtUtils]: Spent 1.16m on a formula simplification. DAG size of input: 137 DAG size of output: 128 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-10-16 13:47:40,506 WARN L233 SmtUtils]: Spent 9.62s on a formula simplification. DAG size of input: 78 DAG size of output: 70 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-10-16 13:47:41,843 INFO L895 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 525 531) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-10-16 13:47:41,843 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 530) no Hoare annotation was computed. [2022-10-16 13:47:41,843 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 525 531) no Hoare annotation was computed. [2022-10-16 13:47:41,844 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed. [2022-10-16 13:47:41,844 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 764) no Hoare annotation was computed. [2022-10-16 13:47:41,844 INFO L899 garLoopResultBuilder]: For program point L770-3(lines 770 772) no Hoare annotation was computed. [2022-10-16 13:47:41,844 INFO L899 garLoopResultBuilder]: For program point L766(line 766) no Hoare annotation was computed. [2022-10-16 13:47:41,844 INFO L899 garLoopResultBuilder]: For program point L770-4(line 770) no Hoare annotation was computed. [2022-10-16 13:47:41,844 INFO L899 garLoopResultBuilder]: For program point L770-5(line 770) no Hoare annotation was computed. [2022-10-16 13:47:41,844 INFO L895 garLoopResultBuilder]: At program point L770-6(lines 770 772) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_entry_point_~i~2#1|)) (.cse1 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse2 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse3 (< |ULTIMATE.start_entry_point_~i~2#1| 2147483647))) (or (and .cse0 (<= (+ |ULTIMATE.start_alloc_unsafe_17_~j~0#1| 1) 0) .cse1 (= |ULTIMATE.start_alloc_unsafe_17_~len#1| |ULTIMATE.start_entry_point_~len~0#1|) .cse2 (= |ULTIMATE.start_alloc_unsafe_17_~i~0#1| 0) .cse3) (and .cse0 (<= |ULTIMATE.start_alloc_unsafe_17_~j~0#1| 2147483647) (<= 1 |ULTIMATE.start_alloc_unsafe_17_~i~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_alloc_unsafe_17_~i~0#1| 2147483648) .cse3))) [2022-10-16 13:47:41,845 INFO L899 garLoopResultBuilder]: For program point L770-7(lines 770 772) no Hoare annotation was computed. [2022-10-16 13:47:41,845 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 770) no Hoare annotation was computed. [2022-10-16 13:47:41,845 INFO L899 garLoopResultBuilder]: For program point L775(lines 775 780) no Hoare annotation was computed. [2022-10-16 13:47:41,845 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 13:47:41,845 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 786) no Hoare annotation was computed. [2022-10-16 13:47:41,846 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 13:47:41,846 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 770) no Hoare annotation was computed. [2022-10-16 13:47:41,846 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 13:47:41,846 INFO L895 garLoopResultBuilder]: At program point L784(line 784) the Hoare annotation is: (and (<= |ULTIMATE.start_entry_point_~len~0#1| 10) (<= 10 |ULTIMATE.start_entry_point_~len~0#1|)) [2022-10-16 13:47:41,846 INFO L899 garLoopResultBuilder]: For program point L784-1(line 784) no Hoare annotation was computed. [2022-10-16 13:47:41,846 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 777) no Hoare annotation was computed. [2022-10-16 13:47:41,846 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 786) no Hoare annotation was computed. [2022-10-16 13:47:41,846 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 13:47:41,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 770) no Hoare annotation was computed. [2022-10-16 13:47:41,847 INFO L899 garLoopResultBuilder]: For program point L764-2(lines 764 768) no Hoare annotation was computed. [2022-10-16 13:47:41,847 INFO L899 garLoopResultBuilder]: For program point L764-3(line 764) no Hoare annotation was computed. [2022-10-16 13:47:41,847 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 795) no Hoare annotation was computed. [2022-10-16 13:47:41,848 INFO L899 garLoopResultBuilder]: For program point L764-4(line 764) no Hoare annotation was computed. [2022-10-16 13:47:41,848 INFO L895 garLoopResultBuilder]: At program point L764-5(lines 764 768) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_entry_point_~i~2#1|)) (.cse1 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse2 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse3 (< |ULTIMATE.start_entry_point_~i~2#1| 2147483647))) (or (and .cse0 .cse1 (= |ULTIMATE.start_alloc_unsafe_17_~len#1| |ULTIMATE.start_entry_point_~len~0#1|) .cse2 (= |ULTIMATE.start_alloc_unsafe_17_~i~0#1| 0) .cse3) (and .cse0 (< |ULTIMATE.start_alloc_unsafe_17_~i~0#1| 2147483647) (<= |ULTIMATE.start_alloc_unsafe_17_~len#1| 10) (<= 1 |ULTIMATE.start_alloc_unsafe_17_~i~0#1|) .cse1 .cse2 .cse3))) [2022-10-16 13:47:41,848 INFO L899 garLoopResultBuilder]: For program point L785(line 785) no Hoare annotation was computed. [2022-10-16 13:47:41,848 INFO L902 garLoopResultBuilder]: At program point L781(lines 781 792) the Hoare annotation is: true [2022-10-16 13:47:41,849 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 777) no Hoare annotation was computed. [2022-10-16 13:47:41,849 INFO L899 garLoopResultBuilder]: For program point L777-2(lines 777 779) no Hoare annotation was computed. [2022-10-16 13:47:41,849 INFO L899 garLoopResultBuilder]: For program point L777-3(line 777) no Hoare annotation was computed. [2022-10-16 13:47:41,849 INFO L895 garLoopResultBuilder]: At program point L773(lines 760 774) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_entry_point_~i~2#1|) (<= 0 |ULTIMATE.start_alloc_unsafe_17_~i~0#1|) (<= (+ |ULTIMATE.start_alloc_unsafe_17_~j~0#1| 1) 0) (<= |ULTIMATE.start_entry_point_~len~0#1| 10) (<= 10 |ULTIMATE.start_entry_point_~len~0#1|) (<= |ULTIMATE.start_alloc_unsafe_17_~i~0#1| 2147483648) (< |ULTIMATE.start_entry_point_~i~2#1| 2147483647)) [2022-10-16 13:47:41,849 INFO L899 garLoopResultBuilder]: For program point L777-4(line 777) no Hoare annotation was computed. [2022-10-16 13:47:41,850 INFO L895 garLoopResultBuilder]: At program point L777-5(lines 777 779) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_free_17_~len#1| 10)) (.cse1 (<= 1 |ULTIMATE.start_entry_point_~i~2#1|)) (.cse2 (<= 0 |ULTIMATE.start_alloc_unsafe_17_~i~0#1|)) (.cse3 (<= (+ |ULTIMATE.start_alloc_unsafe_17_~j~0#1| 1) 0)) (.cse4 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse5 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse6 (<= |ULTIMATE.start_alloc_unsafe_17_~i~0#1| 2147483648)) (.cse7 (< |ULTIMATE.start_entry_point_~i~2#1| 2147483647))) (or (and .cse0 .cse1 (<= 1 |ULTIMATE.start_free_17_~i~1#1|) .cse2 .cse3 (< |ULTIMATE.start_free_17_~i~1#1| 2147483647) .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= |ULTIMATE.start_free_17_~i~1#1| 0)))) [2022-10-16 13:47:41,851 INFO L895 garLoopResultBuilder]: At program point L769(lines 760 774) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_entry_point_~i~2#1|)) (.cse1 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse2 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse3 (< |ULTIMATE.start_entry_point_~i~2#1| 2147483647))) (or (and .cse0 .cse1 (= |ULTIMATE.start_alloc_unsafe_17_~len#1| |ULTIMATE.start_entry_point_~len~0#1|) .cse2 (= |ULTIMATE.start_alloc_unsafe_17_~i~0#1| 0) .cse3) (and .cse0 (<= |ULTIMATE.start_alloc_unsafe_17_~i~0#1| 2147483647) (<= 1 |ULTIMATE.start_alloc_unsafe_17_~i~0#1|) .cse1 .cse2 .cse3))) [2022-10-16 13:47:41,851 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 764) no Hoare annotation was computed. [2022-10-16 13:47:41,851 INFO L895 garLoopResultBuilder]: At program point L765(line 765) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_entry_point_~i~2#1|)) (.cse1 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse2 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|)) (.cse3 (< |ULTIMATE.start_entry_point_~i~2#1| 2147483647))) (or (and .cse0 .cse1 (= |ULTIMATE.start_alloc_unsafe_17_~len#1| |ULTIMATE.start_entry_point_~len~0#1|) .cse2 (= |ULTIMATE.start_alloc_unsafe_17_~i~0#1| 0) .cse3) (and .cse0 (<= |ULTIMATE.start_alloc_unsafe_17_~len#1| 10) (<= 1 |ULTIMATE.start_alloc_unsafe_17_~i~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_alloc_unsafe_17_~i~0#1| 9) .cse3))) [2022-10-16 13:47:41,852 INFO L899 garLoopResultBuilder]: For program point L765-1(line 765) no Hoare annotation was computed. [2022-10-16 13:47:41,852 INFO L899 garLoopResultBuilder]: For program point L786-2(lines 786 788) no Hoare annotation was computed. [2022-10-16 13:47:41,852 INFO L899 garLoopResultBuilder]: For program point L786-3(line 786) no Hoare annotation was computed. [2022-10-16 13:47:41,852 INFO L899 garLoopResultBuilder]: For program point L786-4(line 786) no Hoare annotation was computed. [2022-10-16 13:47:41,852 INFO L895 garLoopResultBuilder]: At program point L786-5(lines 786 788) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse1 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and (<= 1 |ULTIMATE.start_entry_point_~i~2#1|) .cse0 .cse1 (< |ULTIMATE.start_entry_point_~i~2#1| 2147483647)) (and (= |ULTIMATE.start_entry_point_~i~2#1| 0) .cse0 .cse1))) [2022-10-16 13:47:41,852 INFO L899 garLoopResultBuilder]: For program point L786-6(lines 786 788) no Hoare annotation was computed. [2022-10-16 13:47:41,852 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 770) no Hoare annotation was computed. [2022-10-16 13:47:41,852 INFO L899 garLoopResultBuilder]: For program point L770(line 770) no Hoare annotation was computed. [2022-10-16 13:47:41,856 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:47:41,860 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 13:47:41,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:47:41 BoogieIcfgContainer [2022-10-16 13:47:41,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 13:47:41,903 INFO L158 Benchmark]: Toolchain (without parser) took 99960.90ms. Allocated memory was 155.2MB in the beginning and 414.2MB in the end (delta: 259.0MB). Free memory was 128.1MB in the beginning and 156.7MB in the end (delta: -28.5MB). Peak memory consumption was 253.6MB. Max. memory is 8.0GB. [2022-10-16 13:47:41,904 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory was 122.3MB in the beginning and 122.3MB in the end (delta: 76.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 13:47:41,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 641.40ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 127.9MB in the beginning and 167.2MB in the end (delta: -39.3MB). Peak memory consumption was 27.6MB. Max. memory is 8.0GB. [2022-10-16 13:47:41,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.36ms. Allocated memory is still 186.6MB. Free memory was 167.2MB in the beginning and 165.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 13:47:41,905 INFO L158 Benchmark]: Boogie Preprocessor took 34.50ms. Allocated memory is still 186.6MB. Free memory was 165.0MB in the beginning and 163.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 13:47:41,905 INFO L158 Benchmark]: RCFGBuilder took 555.78ms. Allocated memory is still 186.6MB. Free memory was 163.4MB in the beginning and 149.3MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 13:47:41,906 INFO L158 Benchmark]: TraceAbstraction took 98658.46ms. Allocated memory was 186.6MB in the beginning and 414.2MB in the end (delta: 227.5MB). Free memory was 148.2MB in the beginning and 156.7MB in the end (delta: -8.4MB). Peak memory consumption was 241.7MB. Max. memory is 8.0GB. [2022-10-16 13:47:41,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory was 122.3MB in the beginning and 122.3MB in the end (delta: 76.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 641.40ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 127.9MB in the beginning and 167.2MB in the end (delta: -39.3MB). Peak memory consumption was 27.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.36ms. Allocated memory is still 186.6MB. Free memory was 167.2MB in the beginning and 165.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.50ms. Allocated memory is still 186.6MB. Free memory was 165.0MB in the beginning and 163.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 555.78ms. Allocated memory is still 186.6MB. Free memory was 163.4MB in the beginning and 149.3MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 98658.46ms. Allocated memory was 186.6MB in the beginning and 414.2MB in the end (delta: 227.5MB). Free memory was 148.2MB in the beginning and 156.7MB in the end (delta: -8.4MB). Peak memory consumption was 241.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 786]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 98.5s, OverallIterations: 24, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 80.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1718 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1702 mSDsluCounter, 5730 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4653 mSDsCounter, 228 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2447 IncrementalHoareTripleChecker+Invalid, 2675 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 228 mSolverCounterUnsat, 1077 mSDtfsCounter, 2447 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1945 GetRequests, 1550 SyntacticMatches, 11 SemanticMatches, 384 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3052 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=18, InterpolantAutomatonStates: 271, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 24 MinimizatonAttempts, 590 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 31 PreInvPairs, 81 NumberOfFragments, 297 HoareAnnotationTreeSize, 31 FomulaSimplifications, 2367896 FormulaSimplificationTreeSizeReduction, 79.5s HoareSimplificationTime, 10 FomulaSimplificationsInter, 819427 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 2179 NumberOfCodeBlocks, 1930 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 2798 ConstructedInterpolants, 0 QuantifiedInterpolants, 5874 SizeOfPredicates, 49 NumberOfNonLiveVariables, 3280 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 48 InterpolantComputations, 14 PerfectInterpolantSequences, 6904/7729 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 777]: Loop Invariant Derived loop invariant: (((((((((len <= 10 && 1 <= i) && 1 <= i) && 0 <= i) && j + 1 <= 0) && i < 2147483647) && len <= 10) && 10 <= len) && i <= 2147483648) && i < 2147483647) || ((((((((len <= 10 && 1 <= i) && 0 <= i) && j + 1 <= 0) && len <= 10) && 10 <= len) && i <= 2147483648) && i < 2147483647) && i == 0) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: ((((((1 <= i && j + 1 <= 0) && len <= 10) && len == len) && 10 <= len) && i == 0) && i < 2147483647) || ((((((1 <= i && j <= 2147483647) && 1 <= i) && len <= 10) && 10 <= len) && i <= 2147483648) && i < 2147483647) - InvariantResult [Line: 781]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: (((((1 <= i && len <= 10) && len == len) && 10 <= len) && i == 0) && i < 2147483647) || (((((1 <= i && i <= 2147483647) && 1 <= i) && len <= 10) && 10 <= len) && i < 2147483647) - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: (((((1 <= i && 0 <= i) && j + 1 <= 0) && len <= 10) && 10 <= len) && i <= 2147483648) && i < 2147483647 - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: (((((1 <= i && len <= 10) && len == len) && 10 <= len) && i == 0) && i < 2147483647) || ((((((1 <= i && i < 2147483647) && len <= 10) && 1 <= i) && len <= 10) && 10 <= len) && i < 2147483647) - InvariantResult [Line: 786]: Loop Invariant Derived loop invariant: (((1 <= i && len <= 10) && 10 <= len) && i < 2147483647) || ((i == 0 && len <= 10) && 10 <= len) RESULT: Ultimate proved your program to be correct! [2022-10-16 13:47:41,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...