/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-patterns/array1_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:16:46,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:16:46,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:16:46,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:16:46,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:16:46,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:16:46,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:16:46,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:16:46,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:16:46,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:16:46,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:16:46,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-10-16 11:16:46,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:16:46,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:16:46,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:16:46,525 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 11:16:46,576 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:16:46,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:16:46,577 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:16:46,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:16:46,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:16:46,578 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:16:46,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:16:46,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:16:46,581 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:16:46,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:16:46,582 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:16:46,583 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:16:46,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:16:46,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:16:46,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:16:46,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:16:46,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:16:46,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:16:46,584 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:16:46,584 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:16:46,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:16:46,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:16:46,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:16:46,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:16:46,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:16:46,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:16:46,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:16:46,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:16:46,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:16:46,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:16:46,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:16:46,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:16:46,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:16:46,587 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:16:46,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:16:46,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:16:46,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:16:46,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:16:46,977 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:16:46,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array1_pattern.c [2022-10-16 11:16:47,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0b5ebd0/e257d4957b1a460da4c4226df134b416/FLAG2c3a3ccf7 [2022-10-16 11:16:47,717 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:16:47,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array1_pattern.c [2022-10-16 11:16:47,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0b5ebd0/e257d4957b1a460da4c4226df134b416/FLAG2c3a3ccf7 [2022-10-16 11:16:47,755 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc0b5ebd0/e257d4957b1a460da4c4226df134b416 [2022-10-16 11:16:47,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:16:47,767 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:16:47,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:16:47,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:16:47,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:16:47,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:16:47" (1/1) ... [2022-10-16 11:16:47,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a9f99b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:47, skipping insertion in model container [2022-10-16 11:16:47,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:16:47" (1/1) ... [2022-10-16 11:16:47,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:16:47,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:16:48,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array1_pattern.c[1307,1320] [2022-10-16 11:16:48,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:16:48,094 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:16:48,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array1_pattern.c[1307,1320] [2022-10-16 11:16:48,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:16:48,160 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:16:48,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48 WrapperNode [2022-10-16 11:16:48,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:16:48,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:16:48,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:16:48,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:16:48,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (1/1) ... [2022-10-16 11:16:48,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (1/1) ... [2022-10-16 11:16:48,227 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2022-10-16 11:16:48,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:16:48,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:16:48,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:16:48,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:16:48,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (1/1) ... [2022-10-16 11:16:48,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (1/1) ... [2022-10-16 11:16:48,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (1/1) ... [2022-10-16 11:16:48,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (1/1) ... [2022-10-16 11:16:48,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (1/1) ... [2022-10-16 11:16:48,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (1/1) ... [2022-10-16 11:16:48,281 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (1/1) ... [2022-10-16 11:16:48,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (1/1) ... [2022-10-16 11:16:48,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:16:48,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:16:48,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:16:48,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:16:48,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (1/1) ... [2022-10-16 11:16:48,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:16:48,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:48,339 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 11:16:48,360 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 11:16:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:16:48,402 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 11:16:48,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 11:16:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:16:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:16:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:16:48,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:16:48,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:16:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:16:48,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:16:48,493 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:16:48,495 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:16:48,755 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:16:48,763 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:16:48,763 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 11:16:48,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:16:48 BoogieIcfgContainer [2022-10-16 11:16:48,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:16:48,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:16:48,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:16:48,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:16:48,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:16:47" (1/3) ... [2022-10-16 11:16:48,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76383549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:16:48, skipping insertion in model container [2022-10-16 11:16:48,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:16:48" (2/3) ... [2022-10-16 11:16:48,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76383549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:16:48, skipping insertion in model container [2022-10-16 11:16:48,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:16:48" (3/3) ... [2022-10-16 11:16:48,776 INFO L112 eAbstractionObserver]: Analyzing ICFG array1_pattern.c [2022-10-16 11:16:48,812 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:16:48,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-10-16 11:16:48,952 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:16:48,968 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;@7c5c7db4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:16:48,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-10-16 11:16:48,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 55 states have internal predecessors, (64), 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 11:16:48,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 11:16:48,998 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:48,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:49,001 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:49,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:49,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1330268043, now seen corresponding path program 1 times [2022-10-16 11:16:49,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:49,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003678570] [2022-10-16 11:16:49,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:49,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:49,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:16:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:49,341 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 11:16:49,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:49,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003678570] [2022-10-16 11:16:49,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003678570] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:16:49,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:16:49,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:16:49,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842665611] [2022-10-16 11:16:49,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:16:49,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 11:16:49,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:49,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 11:16:49,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:16:49,402 INFO L87 Difference]: Start difference. First operand has 59 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 55 states have internal predecessors, (64), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 11:16:49,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:49,443 INFO L93 Difference]: Finished difference Result 115 states and 134 transitions. [2022-10-16 11:16:49,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 11:16:49,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 11 [2022-10-16 11:16:49,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:49,457 INFO L225 Difference]: With dead ends: 115 [2022-10-16 11:16:49,457 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 11:16:49,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:16:49,467 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:49,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:16:49,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 11:16:49,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-10-16 11:16:49,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 48 states have internal predecessors, (51), 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 11:16:49,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2022-10-16 11:16:49,526 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 11 [2022-10-16 11:16:49,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:49,527 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-10-16 11:16:49,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 11:16:49,529 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2022-10-16 11:16:49,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 11:16:49,532 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:49,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:49,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:16:49,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:49,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:49,536 INFO L85 PathProgramCache]: Analyzing trace with hash 444739319, now seen corresponding path program 1 times [2022-10-16 11:16:49,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:49,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712237675] [2022-10-16 11:16:49,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:49,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:49,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:16:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:49,809 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 11:16:49,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:49,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712237675] [2022-10-16 11:16:49,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712237675] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:16:49,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:16:49,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:16:49,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165213309] [2022-10-16 11:16:49,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:16:49,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:16:49,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:49,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:16:49,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:16:49,813 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11:16:49,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:49,877 INFO L93 Difference]: Finished difference Result 96 states and 102 transitions. [2022-10-16 11:16:49,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:16:49,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2022-10-16 11:16:49,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:49,880 INFO L225 Difference]: With dead ends: 96 [2022-10-16 11:16:49,880 INFO L226 Difference]: Without dead ends: 94 [2022-10-16 11:16:49,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:16:49,882 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 40 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:49,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 137 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:16:49,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-16 11:16:49,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 56. [2022-10-16 11:16:49,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 35 states have (on average 1.6) internal successors, (56), 52 states have internal predecessors, (56), 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 11:16:49,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2022-10-16 11:16:49,896 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 11 [2022-10-16 11:16:49,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:49,896 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2022-10-16 11:16:49,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11:16:49,897 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2022-10-16 11:16:49,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:16:49,898 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:49,898 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:49,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:16:49,898 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:49,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:49,899 INFO L85 PathProgramCache]: Analyzing trace with hash 959106387, now seen corresponding path program 1 times [2022-10-16 11:16:49,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:49,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620757901] [2022-10-16 11:16:49,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:49,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:49,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:16:49,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654907995] [2022-10-16 11:16:49,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:49,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:49,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:49,922 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 11:16:49,944 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 11:16:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:49,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 11:16:49,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:50,078 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 11:16:50,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:16:50,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:50,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620757901] [2022-10-16 11:16:50,079 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:16:50,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654907995] [2022-10-16 11:16:50,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654907995] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:16:50,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:16:50,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 11:16:50,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940814469] [2022-10-16 11:16:50,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:16:50,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:16:50,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:50,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:16:50,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:16:50,083 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:50,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:50,199 INFO L93 Difference]: Finished difference Result 115 states and 120 transitions. [2022-10-16 11:16:50,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 11:16:50,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2022-10-16 11:16:50,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:50,202 INFO L225 Difference]: With dead ends: 115 [2022-10-16 11:16:50,202 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 11:16:50,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 11:16:50,204 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 85 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:50,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 134 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:16:50,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 11:16:50,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 59. [2022-10-16 11:16:50,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.5) internal successors, (57), 54 states have internal predecessors, (57), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2022-10-16 11:16:50,214 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 16 [2022-10-16 11:16:50,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:50,215 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2022-10-16 11:16:50,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:50,216 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2022-10-16 11:16:50,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 11:16:50,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:50,217 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:50,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 11:16:50,430 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 11:16:50,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:50,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:50,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1620422541, now seen corresponding path program 1 times [2022-10-16 11:16:50,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:50,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301412963] [2022-10-16 11:16:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:50,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:50,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:16:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:50,572 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 11:16:50,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:50,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301412963] [2022-10-16 11:16:50,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301412963] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:16:50,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684622936] [2022-10-16 11:16:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:50,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:50,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:50,575 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 11:16:50,588 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 11:16:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:50,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:16:50,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:50,690 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 11:16:50,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:16:50,755 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 11:16:50,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684622936] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:16:50,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:16:50,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:16:50,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434428373] [2022-10-16 11:16:50,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:16:50,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:16:50,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:50,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:16:50,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:16:50,768 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 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 11:16:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:50,930 INFO L93 Difference]: Finished difference Result 158 states and 171 transitions. [2022-10-16 11:16:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:16:50,931 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 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 15 [2022-10-16 11:16:50,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:50,933 INFO L225 Difference]: With dead ends: 158 [2022-10-16 11:16:50,933 INFO L226 Difference]: Without dead ends: 157 [2022-10-16 11:16:50,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:16:50,951 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 124 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:50,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 327 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:16:50,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-10-16 11:16:50,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 70. [2022-10-16 11:16:50,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 49 states have (on average 1.489795918367347) internal successors, (73), 65 states have internal predecessors, (73), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:50,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2022-10-16 11:16:50,965 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 15 [2022-10-16 11:16:50,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:50,965 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2022-10-16 11:16:50,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 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 11:16:50,966 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2022-10-16 11:16:50,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:16:50,966 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:50,966 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:50,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 11:16:51,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 11:16:51,181 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:51,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:51,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1306508829, now seen corresponding path program 1 times [2022-10-16 11:16:51,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:51,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662310365] [2022-10-16 11:16:51,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:51,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:51,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:16:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:51,297 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 11:16:51,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:51,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662310365] [2022-10-16 11:16:51,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662310365] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:16:51,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651364193] [2022-10-16 11:16:51,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:51,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:51,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:51,299 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 11:16:51,309 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 11:16:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:51,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:16:51,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:51,402 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 11:16:51,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:16:51,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651364193] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:16:51,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:16:51,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:16:51,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104321741] [2022-10-16 11:16:51,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:16:51,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:16:51,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:51,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:16:51,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:16:51,405 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 11:16:51,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:51,465 INFO L93 Difference]: Finished difference Result 84 states and 91 transitions. [2022-10-16 11:16:51,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:16:51,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 16 [2022-10-16 11:16:51,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:51,467 INFO L225 Difference]: With dead ends: 84 [2022-10-16 11:16:51,467 INFO L226 Difference]: Without dead ends: 83 [2022-10-16 11:16:51,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:16:51,469 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 43 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:51,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 121 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:16:51,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-10-16 11:16:51,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 69. [2022-10-16 11:16:51,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 64 states have internal predecessors, (70), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:51,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2022-10-16 11:16:51,479 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 16 [2022-10-16 11:16:51,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:51,479 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2022-10-16 11:16:51,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 11:16:51,480 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2022-10-16 11:16:51,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 11:16:51,481 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:51,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:51,517 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 11:16:51,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:51,696 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:51,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:51,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1463273129, now seen corresponding path program 1 times [2022-10-16 11:16:51,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:51,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31036054] [2022-10-16 11:16:51,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:51,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:51,715 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:16:51,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [557738778] [2022-10-16 11:16:51,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:51,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:51,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:51,717 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 11:16:51,739 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 11:16:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:51,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:16:51,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:51,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:16:51,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:16:51,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:51,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31036054] [2022-10-16 11:16:51,843 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:16:51,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557738778] [2022-10-16 11:16:51,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557738778] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:16:51,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:16:51,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 11:16:51,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918681914] [2022-10-16 11:16:51,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:16:51,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:16:51,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:51,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:16:51,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:16:51,845 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:51,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:51,901 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2022-10-16 11:16:51,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:16:51,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2022-10-16 11:16:51,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:51,903 INFO L225 Difference]: With dead ends: 70 [2022-10-16 11:16:51,903 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 11:16:51,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 11:16:51,905 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 36 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:51,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 112 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:16:51,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 11:16:51,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2022-10-16 11:16:51,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 61 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:51,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2022-10-16 11:16:51,914 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 20 [2022-10-16 11:16:51,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:51,915 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2022-10-16 11:16:51,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:51,915 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2022-10-16 11:16:51,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 11:16:51,916 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:51,916 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:51,950 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 11:16:52,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:52,131 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:52,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:52,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1883173321, now seen corresponding path program 1 times [2022-10-16 11:16:52,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:52,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363098115] [2022-10-16 11:16:52,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:52,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:52,148 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:16:52,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [509844444] [2022-10-16 11:16:52,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:52,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:52,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:52,150 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 11:16:52,172 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 11:16:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:52,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:16:52,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:52,254 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 11:16:52,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:16:52,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:52,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363098115] [2022-10-16 11:16:52,255 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:16:52,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509844444] [2022-10-16 11:16:52,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509844444] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:16:52,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:16:52,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:16:52,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385107371] [2022-10-16 11:16:52,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:16:52,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:16:52,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:52,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:16:52,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:16:52,258 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 11:16:52,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:52,285 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2022-10-16 11:16:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:16:52,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 21 [2022-10-16 11:16:52,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:52,287 INFO L225 Difference]: With dead ends: 67 [2022-10-16 11:16:52,287 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 11:16:52,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:16:52,288 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 32 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:52,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 56 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:16:52,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 11:16:52,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2022-10-16 11:16:52,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 58 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:52,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2022-10-16 11:16:52,296 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 21 [2022-10-16 11:16:52,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:52,297 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2022-10-16 11:16:52,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 11:16:52,297 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2022-10-16 11:16:52,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:16:52,298 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:52,298 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] [2022-10-16 11:16:52,334 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 11:16:52,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:52,514 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:52,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:52,515 INFO L85 PathProgramCache]: Analyzing trace with hash 753651163, now seen corresponding path program 1 times [2022-10-16 11:16:52,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:52,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340016641] [2022-10-16 11:16:52,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:52,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:52,531 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:16:52,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1462253054] [2022-10-16 11:16:52,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:52,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:52,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:52,532 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 11:16:52,534 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 11:16:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:52,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:16:52,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:52,647 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 11:16:52,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:16:52,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:52,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340016641] [2022-10-16 11:16:52,647 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:16:52,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462253054] [2022-10-16 11:16:52,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462253054] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:16:52,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:16:52,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:16:52,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759830802] [2022-10-16 11:16:52,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:16:52,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:16:52,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:52,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:16:52,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:16:52,650 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 11:16:52,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:52,668 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2022-10-16 11:16:52,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:16:52,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 24 [2022-10-16 11:16:52,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:52,670 INFO L225 Difference]: With dead ends: 63 [2022-10-16 11:16:52,670 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 11:16:52,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:16:52,671 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:52,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 35 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:16:52,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 11:16:52,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-16 11:16:52,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 57 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2022-10-16 11:16:52,685 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 24 [2022-10-16 11:16:52,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:52,685 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2022-10-16 11:16:52,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 11:16:52,686 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2022-10-16 11:16:52,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:16:52,688 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:52,688 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] [2022-10-16 11:16:52,722 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 11:16:52,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:52,904 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:52,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:52,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1590703075, now seen corresponding path program 1 times [2022-10-16 11:16:52,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:52,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235573255] [2022-10-16 11:16:52,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:52,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:52,921 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:16:52,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1456874673] [2022-10-16 11:16:52,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:52,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:52,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:52,922 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 11:16:52,924 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 11:16:52,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:52,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:16:52,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:53,040 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 11:16:53,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:16:53,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:53,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235573255] [2022-10-16 11:16:53,041 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:16:53,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456874673] [2022-10-16 11:16:53,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456874673] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:16:53,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:16:53,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:16:53,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804122304] [2022-10-16 11:16:53,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:16:53,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:16:53,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:53,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:16:53,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:16:53,044 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 11:16:53,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:53,076 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2022-10-16 11:16:53,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:16:53,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 26 [2022-10-16 11:16:53,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:53,078 INFO L225 Difference]: With dead ends: 63 [2022-10-16 11:16:53,078 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 11:16:53,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:16:53,079 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 31 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 37 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 11:16:53,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 37 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:16:53,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 11:16:53,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2022-10-16 11:16:53,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.2653061224489797) internal successors, (62), 56 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:53,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 66 transitions. [2022-10-16 11:16:53,087 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 66 transitions. Word has length 26 [2022-10-16 11:16:53,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:53,087 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 66 transitions. [2022-10-16 11:16:53,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 11:16:53,088 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 66 transitions. [2022-10-16 11:16:53,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 11:16:53,089 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:53,089 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] [2022-10-16 11:16:53,128 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 11:16:53,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:53,303 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:53,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:53,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2067154993, now seen corresponding path program 1 times [2022-10-16 11:16:53,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:53,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207821340] [2022-10-16 11:16:53,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:53,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:53,337 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:16:53,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1791756425] [2022-10-16 11:16:53,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:53,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:53,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:53,339 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 11:16:53,348 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 11:16:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:53,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:16:53,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:16:53,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:16:53,507 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 11:16:53,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:53,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207821340] [2022-10-16 11:16:53,508 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:16:53,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791756425] [2022-10-16 11:16:53,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791756425] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:16:53,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:16:53,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 11:16:53,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154710717] [2022-10-16 11:16:53,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:16:53,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:16:53,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:53,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:16:53,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:16:53,510 INFO L87 Difference]: Start difference. First operand 61 states and 66 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:16:53,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:53,605 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2022-10-16 11:16:53,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 11:16:53,605 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 27 [2022-10-16 11:16:53,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:53,606 INFO L225 Difference]: With dead ends: 76 [2022-10-16 11:16:53,607 INFO L226 Difference]: Without dead ends: 75 [2022-10-16 11:16:53,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-10-16 11:16:53,608 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 127 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:53,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 72 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:16:53,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-10-16 11:16:53,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 60. [2022-10-16 11:16:53,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 55 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:53,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2022-10-16 11:16:53,616 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 27 [2022-10-16 11:16:53,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:53,616 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2022-10-16 11:16:53,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:16:53,617 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2022-10-16 11:16:53,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 11:16:53,618 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:53,618 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:53,654 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 11:16:53,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 11:16:53,832 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:53,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:53,833 INFO L85 PathProgramCache]: Analyzing trace with hash -591396633, now seen corresponding path program 2 times [2022-10-16 11:16:53,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:53,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616867720] [2022-10-16 11:16:53,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:53,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:54,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 11:16:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:54,114 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 11:16:54,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:54,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616867720] [2022-10-16 11:16:54,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616867720] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:16:54,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185768063] [2022-10-16 11:16:54,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:16:54,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:54,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:54,117 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 11:16:54,138 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 11:16:54,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:16:54,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:16:54,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:16:54,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:54,237 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 11:16:54,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:16:54,295 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 11:16:54,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185768063] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:16:54,296 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:16:54,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-16 11:16:54,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816643395] [2022-10-16 11:16:54,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:16:54,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 11:16:54,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:54,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 11:16:54,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:16:54,298 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:16:54,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:54,588 INFO L93 Difference]: Finished difference Result 150 states and 168 transitions. [2022-10-16 11:16:54,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:16:54,589 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 27 [2022-10-16 11:16:54,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:54,590 INFO L225 Difference]: With dead ends: 150 [2022-10-16 11:16:54,590 INFO L226 Difference]: Without dead ends: 149 [2022-10-16 11:16:54,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-16 11:16:54,592 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 314 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:54,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 206 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:16:54,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-10-16 11:16:54,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 45. [2022-10-16 11:16:54,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 40 states have internal predecessors, (43), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:54,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions. [2022-10-16 11:16:54,601 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 27 [2022-10-16 11:16:54,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:54,601 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions. [2022-10-16 11:16:54,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 18 states have internal predecessors, (46), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:16:54,602 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions. [2022-10-16 11:16:54,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 11:16:54,602 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:54,603 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, 1, 1, 1, 1, 1] [2022-10-16 11:16:54,638 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 11:16:54,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:54,816 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:54,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:54,817 INFO L85 PathProgramCache]: Analyzing trace with hash -298398119, now seen corresponding path program 1 times [2022-10-16 11:16:54,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:54,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547300666] [2022-10-16 11:16:54,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:54,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:54,832 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:16:54,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427969829] [2022-10-16 11:16:54,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:54,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:54,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:54,834 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 11:16:54,841 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 11:16:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:54,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 11:16:54,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:54,971 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:16:55,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:16:55,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-10-16 11:16:55,519 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 11:16:55,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 13 [2022-10-16 11:16:55,554 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:16:55,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:16:55,624 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_326 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_326) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808)) is different from false [2022-10-16 11:16:55,701 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:16:55,701 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2022-10-16 11:16:55,717 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:16:55,717 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 39 [2022-10-16 11:16:55,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-10-16 11:16:58,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:58,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547300666] [2022-10-16 11:16:58,084 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:16:58,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427969829] [2022-10-16 11:16:58,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427969829] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:16:58,085 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:16:58,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2022-10-16 11:16:58,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292074544] [2022-10-16 11:16:58,085 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:16:58,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 11:16:58,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:58,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 11:16:58,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=294, Unknown=1, NotChecked=34, Total=380 [2022-10-16 11:16:58,087 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand has 14 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:58,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:58,318 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2022-10-16 11:16:58,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:16:58,318 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2022-10-16 11:16:58,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:58,319 INFO L225 Difference]: With dead ends: 79 [2022-10-16 11:16:58,320 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 11:16:58,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=89, Invalid=466, Unknown=1, NotChecked=44, Total=600 [2022-10-16 11:16:58,321 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 37 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 97 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:58,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 262 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 115 Invalid, 0 Unknown, 97 Unchecked, 0.1s Time] [2022-10-16 11:16:58,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 11:16:58,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2022-10-16 11:16:58,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 62 states have internal predecessors, (67), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:16:58,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 73 transitions. [2022-10-16 11:16:58,332 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 73 transitions. Word has length 33 [2022-10-16 11:16:58,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:58,332 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 73 transitions. [2022-10-16 11:16:58,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:58,333 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 73 transitions. [2022-10-16 11:16:58,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 11:16:58,339 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:58,339 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, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:58,375 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 11:16:58,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 11:16:58,555 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:58,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:58,556 INFO L85 PathProgramCache]: Analyzing trace with hash -660406996, now seen corresponding path program 1 times [2022-10-16 11:16:58,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:58,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969072868] [2022-10-16 11:16:58,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:58,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:16:58,570 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:16:58,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526144579] [2022-10-16 11:16:58,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:58,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:16:58,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:16:58,572 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 11:16:58,593 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 11:16:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:16:58,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 11:16:58,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:16:58,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:16:58,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:16:58,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2022-10-16 11:16:59,060 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 11:16:59,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 13 [2022-10-16 11:16:59,113 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:16:59,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:16:59,176 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_361 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_361) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1|))) is different from false [2022-10-16 11:16:59,237 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:16:59,237 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26 [2022-10-16 11:16:59,248 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:16:59,248 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 41 [2022-10-16 11:16:59,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2022-10-16 11:16:59,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:16:59,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969072868] [2022-10-16 11:16:59,538 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:16:59,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526144579] [2022-10-16 11:16:59,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526144579] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:16:59,538 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:16:59,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2022-10-16 11:16:59,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724407301] [2022-10-16 11:16:59,539 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:16:59,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 11:16:59,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:16:59,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 11:16:59,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=294, Unknown=1, NotChecked=34, Total=380 [2022-10-16 11:16:59,540 INFO L87 Difference]: Start difference. First operand 69 states and 73 transitions. Second operand has 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:59,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:16:59,762 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2022-10-16 11:16:59,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:16:59,762 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2022-10-16 11:16:59,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:16:59,763 INFO L225 Difference]: With dead ends: 80 [2022-10-16 11:16:59,763 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 11:16:59,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=466, Unknown=1, NotChecked=44, Total=600 [2022-10-16 11:16:59,765 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 31 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:16:59,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 328 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 159 Invalid, 0 Unknown, 88 Unchecked, 0.1s Time] [2022-10-16 11:16:59,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 11:16:59,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 70. [2022-10-16 11:16:59,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 63 states have internal predecessors, (68), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 11:16:59,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2022-10-16 11:16:59,776 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 34 [2022-10-16 11:16:59,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:16:59,776 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2022-10-16 11:16:59,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:16:59,777 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2022-10-16 11:16:59,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 11:16:59,777 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:16:59,778 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:59,814 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 11:16:59,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 11:16:59,992 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:16:59,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:16:59,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1002219707, now seen corresponding path program 1 times [2022-10-16 11:16:59,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:16:59,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861927446] [2022-10-16 11:16:59,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:16:59,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:17:00,008 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:17:00,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1445076552] [2022-10-16 11:17:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:00,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:00,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:17:00,010 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 11:17:00,028 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 11:17:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:17:00,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 11:17:00,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:17:00,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:17:00,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:00,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-10-16 11:17:00,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 11:17:00,415 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:17:00,618 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 87 [2022-10-16 11:17:00,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:17:00,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:00,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 146 [2022-10-16 11:17:00,677 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-16 11:17:01,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:17:01,066 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 11:17:01,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 21 [2022-10-16 11:17:01,121 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:17:01,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:17:03,732 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse10 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |c_ULTIMATE.start_main_~index~0#1|)) 4294967296))) (let ((.cse0 (* |c_ULTIMATE.start_main_~index~0#1| |c_ULTIMATE.start_main_~num~0#1|)) (.cse4 (* 4 .cse10)) (.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|)) (.cse6 (* |c_ULTIMATE.start_main_~index~0#1| 4)) (.cse1 (* |c_ULTIMATE.start_main_~index~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|)) (.cse7 (<= .cse10 2147483647))) (and (or (forall ((v_ArrVal_401 Int) (v_ArrVal_398 Int) (|ULTIMATE.start_main_~#array1~0#1.offset| Int)) (or (not (<= v_ArrVal_401 .cse0)) (not (<= v_ArrVal_398 .cse1)) (< (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse5 (+ |ULTIMATE.start_main_~#array1~0#1.offset| .cse6) v_ArrVal_398)))) (let ((.cse2 (store (select .cse3 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse4 |c_ULTIMATE.start_main_~#array2~0#1.offset|) v_ArrVal_401))) (+ (select .cse2 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select (select (store .cse3 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse2) |c_ULTIMATE.start_main_~#array1~0#1.base|) |ULTIMATE.start_main_~#array1~0#1.offset|)))) 9223372036854775808))) (not .cse7)) (or (forall ((v_ArrVal_401 Int) (v_ArrVal_398 Int) (|ULTIMATE.start_main_~#array1~0#1.offset| Int)) (or (not (<= v_ArrVal_401 .cse0)) (< (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse5 (+ |ULTIMATE.start_main_~#array1~0#1.offset| .cse6) v_ArrVal_398)))) (let ((.cse8 (store (select .cse9 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) .cse4 |c_ULTIMATE.start_main_~#array2~0#1.offset|) v_ArrVal_401))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse8 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select (select (store .cse9 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse8) |c_ULTIMATE.start_main_~#array1~0#1.base|) |ULTIMATE.start_main_~#array1~0#1.offset|)))) 9223372036854775808) (not (<= v_ArrVal_398 .cse1)))) .cse7)))) is different from false [2022-10-16 11:17:15,990 WARN L233 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 11:17:18,358 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse12 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |c_ULTIMATE.start_main_~index~0#1|)) 4294967296))) (let ((.cse7 (<= .cse12 2147483647)) (.cse4 (* 4 .cse12)) (.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|)) (.cse6 (* |c_ULTIMATE.start_main_~index~0#1| 4))) (and (or (forall ((|ULTIMATE.start_main_~num~0#1| Int) (v_ArrVal_401 Int) (v_ArrVal_398 Int) (|ULTIMATE.start_main_~#array1~0#1.offset| Int)) (let ((.cse0 (* |c_ULTIMATE.start_main_~index~0#1| |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~num~0#1|)) (.cse1 (* |c_ULTIMATE.start_main_~index~0#1| |ULTIMATE.start_main_~num~0#1|))) (or (not (<= .cse0 2147483647)) (not (<= v_ArrVal_401 .cse1)) (< (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse5 (+ |ULTIMATE.start_main_~#array1~0#1.offset| .cse6) v_ArrVal_398)))) (let ((.cse2 (store (select .cse3 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) .cse4 |c_ULTIMATE.start_main_~#array2~0#1.offset|) v_ArrVal_401))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse2 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select (select (store .cse3 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse2) |c_ULTIMATE.start_main_~#array1~0#1.base|) |ULTIMATE.start_main_~#array1~0#1.offset|)))) 9223372036854775808) (not (<= v_ArrVal_398 .cse0)) (not (<= .cse1 2147483647))))) .cse7) (or (not .cse7) (forall ((|ULTIMATE.start_main_~num~0#1| Int) (v_ArrVal_401 Int) (v_ArrVal_398 Int) (|ULTIMATE.start_main_~#array1~0#1.offset| Int)) (let ((.cse8 (* |c_ULTIMATE.start_main_~index~0#1| |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~num~0#1|)) (.cse9 (* |c_ULTIMATE.start_main_~index~0#1| |ULTIMATE.start_main_~num~0#1|))) (or (not (<= .cse8 2147483647)) (not (<= v_ArrVal_401 .cse9)) (< (let ((.cse11 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse5 (+ |ULTIMATE.start_main_~#array1~0#1.offset| .cse6) v_ArrVal_398)))) (let ((.cse10 (store (select .cse11 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ .cse4 |c_ULTIMATE.start_main_~#array2~0#1.offset|) v_ArrVal_401))) (+ (select .cse10 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select (select (store .cse11 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse10) |c_ULTIMATE.start_main_~#array1~0#1.base|) |ULTIMATE.start_main_~#array1~0#1.offset|)))) 9223372036854775808) (not (<= v_ArrVal_398 .cse8)) (not (<= .cse9 2147483647))))))))) is different from false [2022-10-16 11:17:28,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:17:28,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861927446] [2022-10-16 11:17:28,131 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:17:28,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445076552] [2022-10-16 11:17:28,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445076552] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:17:28,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:17:28,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2022-10-16 11:17:28,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955511605] [2022-10-16 11:17:28,132 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:17:28,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:17:28,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:17:28,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:17:28,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=436, Unknown=4, NotChecked=86, Total=600 [2022-10-16 11:17:28,133 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:17:28,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:17:28,759 INFO L93 Difference]: Finished difference Result 96 states and 103 transitions. [2022-10-16 11:17:28,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:17:28,760 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2022-10-16 11:17:28,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:17:28,761 INFO L225 Difference]: With dead ends: 96 [2022-10-16 11:17:28,761 INFO L226 Difference]: Without dead ends: 95 [2022-10-16 11:17:28,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 26.4s TimeCoverageRelationStatistics Valid=112, Invalid=594, Unknown=4, NotChecked=102, Total=812 [2022-10-16 11:17:28,764 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 45 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 146 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:17:28,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 219 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 146 Unchecked, 0.1s Time] [2022-10-16 11:17:28,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-10-16 11:17:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2022-10-16 11:17:28,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 78 states have (on average 1.1666666666666667) internal successors, (91), 83 states have internal predecessors, (91), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 11:17:28,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 99 transitions. [2022-10-16 11:17:28,779 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 99 transitions. Word has length 35 [2022-10-16 11:17:28,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:17:28,780 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 99 transitions. [2022-10-16 11:17:28,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:17:28,780 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 99 transitions. [2022-10-16 11:17:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 11:17:28,780 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:17:28,781 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:17:28,820 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 11:17:28,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 11:17:28,995 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:17:28,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:17:28,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1004039950, now seen corresponding path program 1 times [2022-10-16 11:17:28,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:17:28,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305281837] [2022-10-16 11:17:28,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:28,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:17:29,010 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:17:29,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097964090] [2022-10-16 11:17:29,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:29,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:29,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:17:29,011 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 11:17:29,023 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 11:17:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:17:29,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 11:17:29,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:17:29,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:17:29,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:29,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-10-16 11:17:29,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2022-10-16 11:17:29,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 11:17:29,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 11:17:29,393 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-10-16 11:17:29,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 38 [2022-10-16 11:17:30,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 98 [2022-10-16 11:17:30,748 INFO L356 Elim1Store]: treesize reduction 37, result has 2.6 percent of original size [2022-10-16 11:17:30,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 135 [2022-10-16 11:17:30,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:30,940 INFO L356 Elim1Store]: treesize reduction 27, result has 35.7 percent of original size [2022-10-16 11:17:30,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 37 [2022-10-16 11:17:35,762 INFO L356 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-10-16 11:17:35,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 90 [2022-10-16 11:17:39,361 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:17:39,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:17:41,636 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse3 (* |c_ULTIMATE.start_main_~index~0#1| |c_ULTIMATE.start_main_~num~0#1|))) (and (forall ((v_ArrVal_441 Int)) (or (forall ((aux_mod_~ARR_SIZE~0_91 Int)) (let ((.cse1 (store .cse2 (+ (* (mod aux_mod_~ARR_SIZE~0_91 4294967296) 4) |c_ULTIMATE.start_main_~#array2~0#1.offset|) v_ArrVal_441))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (or (< 2147483647 aux_mod_~ARR_SIZE~0_91) (< aux_mod_~ARR_SIZE~0_91 0) (< 0 (+ .cse0 1)) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array2~0#1.base| .cse1) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) .cse0)))))) (not (<= .cse3 v_ArrVal_441)))) (forall ((v_ArrVal_441 Int)) (or (forall ((aux_mod_~ARR_SIZE~0_91 Int)) (let ((.cse5 (store .cse2 (+ (- 17179869184) (* (mod aux_mod_~ARR_SIZE~0_91 4294967296) 4) |c_ULTIMATE.start_main_~#array2~0#1.offset|) v_ArrVal_441))) (let ((.cse4 (select .cse5 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (or (< 0 (+ .cse4 1)) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array2~0#1.base| .cse5) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| .cse4)) (<= aux_mod_~ARR_SIZE~0_91 2147483647) (<= 4294967296 aux_mod_~ARR_SIZE~0_91))))) (not (<= .cse3 v_ArrVal_441)))))) is different from false [2022-10-16 11:17:52,681 WARN L233 SmtUtils]: Spent 10.13s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 11:17:55,028 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((|ULTIMATE.start_main_~num~0#1| Int) (|ULTIMATE.start_main_~index~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~index~0#1|)) (.cse5 (* |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~index~0#1|))) (or (forall ((v_ArrVal_440 Int)) (or (forall ((v_ArrVal_441 Int)) (or (not (<= .cse0 v_ArrVal_441)) (forall ((aux_mod_~ARR_SIZE~0_91 Int)) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse4 (+ (* 4 |ULTIMATE.start_main_~index~0#1|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) v_ArrVal_440)))) (let ((.cse3 (store (select .cse2 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (- 17179869184) (* (mod aux_mod_~ARR_SIZE~0_91 4294967296) 4) |c_ULTIMATE.start_main_~#array2~0#1.offset|) v_ArrVal_441))) (let ((.cse1 (select .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (or (< 0 (+ .cse1 1)) (<= aux_mod_~ARR_SIZE~0_91 2147483647) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| .cse1 (select (select (store .cse2 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse3) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (<= 4294967296 aux_mod_~ARR_SIZE~0_91)))))))) (not (<= .cse5 v_ArrVal_440)))) (not (<= 0 (+ .cse0 2147483648))) (not (<= 0 (+ .cse5 2147483648)))))) (forall ((|ULTIMATE.start_main_~num~0#1| Int) (|ULTIMATE.start_main_~index~0#1| Int)) (let ((.cse7 (* |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~index~0#1|)) (.cse6 (* |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~index~0#1|))) (or (forall ((v_ArrVal_440 Int)) (or (not (<= .cse6 v_ArrVal_440)) (forall ((v_ArrVal_441 Int)) (or (not (<= .cse7 v_ArrVal_441)) (forall ((aux_mod_~ARR_SIZE~0_91 Int)) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse4 (+ (* 4 |ULTIMATE.start_main_~index~0#1|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) v_ArrVal_440)))) (let ((.cse10 (store (select .cse9 |c_ULTIMATE.start_main_~#array2~0#1.base|) (+ (* (mod aux_mod_~ARR_SIZE~0_91 4294967296) 4) |c_ULTIMATE.start_main_~#array2~0#1.offset|) v_ArrVal_441))) (let ((.cse8 (select .cse10 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (or (< 0 (+ .cse8 1)) (< 2147483647 aux_mod_~ARR_SIZE~0_91) (< aux_mod_~ARR_SIZE~0_91 0) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (select (store .cse9 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse10) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) .cse8))))))))))) (not (<= 0 (+ .cse7 2147483648))) (not (<= 0 (+ .cse6 2147483648)))))))) is different from false [2022-10-16 11:17:55,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:17:55,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305281837] [2022-10-16 11:17:55,548 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:17:55,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097964090] [2022-10-16 11:17:55,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097964090] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:17:55,549 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:17:55,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2022-10-16 11:17:55,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791413356] [2022-10-16 11:17:55,549 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:17:55,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 11:17:55,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:17:55,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 11:17:55,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=192, Unknown=5, NotChecked=58, Total=306 [2022-10-16 11:17:55,551 INFO L87 Difference]: Start difference. First operand 92 states and 99 transitions. Second operand has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:17:55,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:17:55,912 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2022-10-16 11:17:55,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 11:17:55,912 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2022-10-16 11:17:55,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:17:55,913 INFO L225 Difference]: With dead ends: 101 [2022-10-16 11:17:55,913 INFO L226 Difference]: Without dead ends: 100 [2022-10-16 11:17:55,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=61, Invalid=214, Unknown=5, NotChecked=62, Total=342 [2022-10-16 11:17:55,914 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 34 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:17:55,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 179 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 82 Unchecked, 0.1s Time] [2022-10-16 11:17:55,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-16 11:17:55,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 94. [2022-10-16 11:17:55,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 80 states have (on average 1.1625) internal successors, (93), 85 states have internal predecessors, (93), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 11:17:55,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 101 transitions. [2022-10-16 11:17:55,931 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 101 transitions. Word has length 36 [2022-10-16 11:17:55,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:17:55,931 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 101 transitions. [2022-10-16 11:17:55,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:17:55,932 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 101 transitions. [2022-10-16 11:17:55,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 11:17:55,934 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:17:55,934 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1] [2022-10-16 11:17:55,965 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 11:17:56,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 11:17:56,148 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:17:56,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:17:56,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1444517163, now seen corresponding path program 2 times [2022-10-16 11:17:56,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:17:56,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988516883] [2022-10-16 11:17:56,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:56,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:17:56,163 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:17:56,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186058558] [2022-10-16 11:17:56,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:17:56,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:56,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:17:56,165 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 11:17:56,182 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 11:17:56,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:17:56,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:17:56,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 11:17:56,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:17:56,248 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:17:56,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-10-16 11:17:56,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-10-16 11:17:56,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:56,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-10-16 11:17:56,353 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 11:17:56,579 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-10-16 11:17:56,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 28 [2022-10-16 11:17:56,647 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 11:17:56,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 11:17:56,718 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:17:56,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:17:56,779 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_495 (Array Int Int))) (< (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_495) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808)) is different from false [2022-10-16 11:17:56,809 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_493 Int) (v_ArrVal_495 (Array Int Int))) (or (not (<= v_ArrVal_493 (* |c_ULTIMATE.start_main_~index~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|) (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* |c_ULTIMATE.start_main_~index~0#1| 4)) v_ArrVal_493)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_495) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 9223372036854775808))) is different from false [2022-10-16 11:17:56,850 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~num~0#1| Int)) (let ((.cse0 (* |c_ULTIMATE.start_main_~index~0#1| |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~num~0#1|))) (or (not (<= .cse0 2147483647)) (forall ((v_ArrVal_493 Int) (v_ArrVal_495 (Array Int Int))) (or (not (<= v_ArrVal_493 .cse0)) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|) (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* |c_ULTIMATE.start_main_~index~0#1| 4)) v_ArrVal_493)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_495) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 9223372036854775808)))))) is different from false [2022-10-16 11:17:56,929 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~num~0#1| Int) (v_ArrVal_493 Int) (v_ArrVal_495 (Array Int Int)) (|ULTIMATE.start_main_~index~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~index~0#1|))) (or (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|) (+ (* 4 |ULTIMATE.start_main_~index~0#1|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) v_ArrVal_493)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_495) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)) 9223372036854775808) (not (<= .cse0 2147483647)) (not (<= v_ArrVal_493 .cse0)) (< |ULTIMATE.start_main_~index~0#1| 0)))) is different from false [2022-10-16 11:17:56,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:17:56,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988516883] [2022-10-16 11:17:56,931 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:17:56,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186058558] [2022-10-16 11:17:56,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186058558] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:17:56,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:17:56,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2022-10-16 11:17:56,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086140752] [2022-10-16 11:17:56,932 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:17:56,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:17:56,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:17:56,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:17:56,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=269, Unknown=4, NotChecked=148, Total=506 [2022-10-16 11:17:56,933 INFO L87 Difference]: Start difference. First operand 94 states and 101 transitions. Second operand has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:17:57,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:17:57,238 INFO L93 Difference]: Finished difference Result 105 states and 113 transitions. [2022-10-16 11:17:57,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:17:57,239 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2022-10-16 11:17:57,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:17:57,241 INFO L225 Difference]: With dead ends: 105 [2022-10-16 11:17:57,241 INFO L226 Difference]: Without dead ends: 104 [2022-10-16 11:17:57,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=383, Unknown=4, NotChecked=180, Total=702 [2022-10-16 11:17:57,242 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 53 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:17:57,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 186 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 231 Invalid, 0 Unknown, 59 Unchecked, 0.2s Time] [2022-10-16 11:17:57,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-10-16 11:17:57,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2022-10-16 11:17:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 82 states have (on average 1.146341463414634) internal successors, (94), 87 states have internal predecessors, (94), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 11:17:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 102 transitions. [2022-10-16 11:17:57,257 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 102 transitions. Word has length 37 [2022-10-16 11:17:57,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:17:57,257 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 102 transitions. [2022-10-16 11:17:57,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:17:57,257 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 102 transitions. [2022-10-16 11:17:57,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 11:17:57,258 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:17:57,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:17:57,291 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 11:17:57,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:57,472 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:17:57,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:17:57,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1485246224, now seen corresponding path program 1 times [2022-10-16 11:17:57,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:17:57,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876038132] [2022-10-16 11:17:57,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:57,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:17:57,485 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:17:57,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304200625] [2022-10-16 11:17:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:57,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:57,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:17:57,487 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:17:57,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 11:17:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:17:57,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:17:57,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:17:57,575 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 11:17:57,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:17:57,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:17:57,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876038132] [2022-10-16 11:17:57,576 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:17:57,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304200625] [2022-10-16 11:17:57,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304200625] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:17:57,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:17:57,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:17:57,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697138998] [2022-10-16 11:17:57,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:17:57,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:17:57,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:17:57,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:17:57,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:17:57,581 INFO L87 Difference]: Start difference. First operand 96 states and 102 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 11:17:57,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:17:57,619 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2022-10-16 11:17:57,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:17:57,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 38 [2022-10-16 11:17:57,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:17:57,621 INFO L225 Difference]: With dead ends: 107 [2022-10-16 11:17:57,621 INFO L226 Difference]: Without dead ends: 106 [2022-10-16 11:17:57,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:17:57,622 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 11 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 100 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 11:17:57,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 100 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:17:57,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-16 11:17:57,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 101. [2022-10-16 11:17:57,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 87 states have (on average 1.1724137931034482) internal successors, (102), 92 states have internal predecessors, (102), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 11:17:57,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 110 transitions. [2022-10-16 11:17:57,636 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 110 transitions. Word has length 38 [2022-10-16 11:17:57,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:17:57,636 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 110 transitions. [2022-10-16 11:17:57,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 11:17:57,637 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 110 transitions. [2022-10-16 11:17:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 11:17:57,637 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:17:57,637 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1] [2022-10-16 11:17:57,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-10-16 11:17:57,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 11:17:57,838 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:17:57,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:17:57,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1830358992, now seen corresponding path program 2 times [2022-10-16 11:17:57,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:17:57,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333122928] [2022-10-16 11:17:57,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:57,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:17:57,869 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:17:57,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1188077144] [2022-10-16 11:17:57,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:17:57,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:57,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:17:57,871 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:17:57,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 11:17:57,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:17:57,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:17:57,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 11:17:57,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:17:57,957 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:17:57,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2022-10-16 11:17:57,982 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-10-16 11:17:58,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:58,062 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-10-16 11:17:58,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 11:17:58,213 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-10-16 11:17:58,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 28 [2022-10-16 11:17:58,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 11:17:58,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 11:17:58,386 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:17:58,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:17:58,439 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_578 (Array Int Int))) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_578) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) is different from false [2022-10-16 11:17:58,476 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~num~0#1| Int) (|ULTIMATE.start_main_~index~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~num~0#1| |ULTIMATE.start_main_~index~0#1|))) (or (forall ((v_ArrVal_576 Int) (v_ArrVal_578 (Array Int Int))) (or (not (<= .cse0 v_ArrVal_576)) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|) (+ (* 4 |ULTIMATE.start_main_~index~0#1|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) v_ArrVal_576)) |c_ULTIMATE.start_main_~#array2~0#1.base| v_ArrVal_578) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))))) (not (<= 0 (+ .cse0 2147483648)))))) is different from false [2022-10-16 11:17:58,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:17:58,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333122928] [2022-10-16 11:17:58,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:17:58,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188077144] [2022-10-16 11:17:58,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188077144] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:17:58,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:17:58,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2022-10-16 11:17:58,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710366327] [2022-10-16 11:17:58,564 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-10-16 11:17:58,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 11:17:58,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:17:58,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 11:17:58,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=134, Unknown=2, NotChecked=50, Total=240 [2022-10-16 11:17:58,565 INFO L87 Difference]: Start difference. First operand 101 states and 110 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:17:58,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:17:58,747 INFO L93 Difference]: Finished difference Result 106 states and 113 transitions. [2022-10-16 11:17:58,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 11:17:58,747 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-10-16 11:17:58,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:17:58,749 INFO L225 Difference]: With dead ends: 106 [2022-10-16 11:17:58,749 INFO L226 Difference]: Without dead ends: 105 [2022-10-16 11:17:58,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=193, Unknown=2, NotChecked=62, Total=342 [2022-10-16 11:17:58,750 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 60 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:17:58,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 161 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 121 Invalid, 0 Unknown, 9 Unchecked, 0.1s Time] [2022-10-16 11:17:58,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-10-16 11:17:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 101. [2022-10-16 11:17:58,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 87 states have (on average 1.1494252873563218) internal successors, (100), 92 states have internal predecessors, (100), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 11:17:58,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions. [2022-10-16 11:17:58,766 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 38 [2022-10-16 11:17:58,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:17:58,766 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions. [2022-10-16 11:17:58,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 11:17:58,767 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions. [2022-10-16 11:17:58,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 11:17:58,767 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:17:58,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:17:58,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 11:17:58,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 11:17:58,983 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:17:58,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:17:58,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1202007423, now seen corresponding path program 1 times [2022-10-16 11:17:58,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:17:58,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367689089] [2022-10-16 11:17:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:58,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:17:58,996 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:17:58,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1790858380] [2022-10-16 11:17:58,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:58,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:58,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:17:58,998 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:17:59,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 11:17:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:17:59,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:17:59,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:17:59,089 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 11:17:59,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:17:59,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:17:59,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367689089] [2022-10-16 11:17:59,089 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:17:59,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790858380] [2022-10-16 11:17:59,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790858380] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:17:59,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:17:59,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:17:59,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964660553] [2022-10-16 11:17:59,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:17:59,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:17:59,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:17:59,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:17:59,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:17:59,091 INFO L87 Difference]: Start difference. First operand 101 states and 108 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 11:17:59,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:17:59,129 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2022-10-16 11:17:59,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:17:59,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 39 [2022-10-16 11:17:59,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:17:59,130 INFO L225 Difference]: With dead ends: 101 [2022-10-16 11:17:59,130 INFO L226 Difference]: Without dead ends: 100 [2022-10-16 11:17:59,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:17:59,131 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 11 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:17:59,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 89 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:17:59,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-10-16 11:17:59,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-10-16 11:17:59,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 87 states have (on average 1.1379310344827587) internal successors, (99), 91 states have internal predecessors, (99), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-16 11:17:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2022-10-16 11:17:59,146 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 39 [2022-10-16 11:17:59,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:17:59,147 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2022-10-16 11:17:59,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 11:17:59,147 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2022-10-16 11:17:59,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 11:17:59,147 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:17:59,148 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1] [2022-10-16 11:17:59,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 11:17:59,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:59,362 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 11:17:59,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:17:59,363 INFO L85 PathProgramCache]: Analyzing trace with hash -906553801, now seen corresponding path program 2 times [2022-10-16 11:17:59,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:17:59,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904197814] [2022-10-16 11:17:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:17:59,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:17:59,375 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:17:59,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497541756] [2022-10-16 11:17:59,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:17:59,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:17:59,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:17:59,377 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:17:59,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 11:17:59,450 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:17:59,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:17:59,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 40 conjunts are in the unsatisfiable core [2022-10-16 11:17:59,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:17:59,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:17:59,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:59,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-10-16 11:17:59,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 28 [2022-10-16 11:17:59,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 11:17:59,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 11:17:59,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:59,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:17:59,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 43 [2022-10-16 11:18:03,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:18:03,279 INFO L356 Elim1Store]: treesize reduction 34, result has 49.3 percent of original size [2022-10-16 11:18:03,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-10-16 11:18:03,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 109 [2022-10-16 11:18:03,742 INFO L356 Elim1Store]: treesize reduction 37, result has 2.6 percent of original size [2022-10-16 11:18:03,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 135 [2022-10-16 11:18:03,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 20 [2022-10-16 11:18:59,546 WARN L233 SmtUtils]: Spent 48.82s on a formula simplification. DAG size of input: 78 DAG size of output: 74 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 11:19:36,584 WARN L233 SmtUtils]: Spent 32.62s on a formula simplification that was a NOOP. DAG size: 75 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 11:19:49,143 WARN L233 SmtUtils]: Spent 10.19s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 11:20:13,645 WARN L233 SmtUtils]: Spent 20.16s on a formula simplification. DAG size of input: 79 DAG size of output: 76 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 11:20:13,847 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:20:13,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 271 treesize of output 281 [2022-10-16 11:20:14,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:20:14,105 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-10-16 11:20:15,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:20:15,282 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:20:15,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2022-10-16 11:20:15,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:20:15,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-10-16 11:20:15,961 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:20:15,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 364 treesize of output 381 [2022-10-16 11:20:21,194 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:20:21,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 497 treesize of output 1353