/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-crafted/zero_sum_m5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:04:42,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:04:42,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:04:42,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:04:42,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:04:42,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:04:42,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:04:42,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:04:42,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:04:42,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:04:42,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:04:42,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:04:42,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:04:42,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:04:42,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:04:42,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:04:42,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:04:42,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:04:42,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:04:42,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:04:42,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:04:42,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:04:42,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:04:42,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:04:42,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:04:42,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:04:42,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:04:42,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:04:42,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:04:42,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:04:42,749 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:04:42,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:04:42,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:04:42,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:04:42,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:04:42,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:04:42,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:04:42,812 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:04:42,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:04:42,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:04:42,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:04:42,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:04:42,815 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:04:42,818 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:04:42,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:04:42,819 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:04:42,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:04:42,820 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:04:42,821 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:04:42,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:04:42,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:04:42,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:04:42,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:04:42,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:04:42,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:04:42,822 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:04:42,822 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:04:42,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:04:42,823 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:04:42,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:04:42,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:04:42,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:04:42,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:04:42,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:04:42,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:04:42,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:04:42,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:04:42,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:04:42,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:04:42,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:04:42,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:04:43,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:04:43,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:04:43,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:04:43,313 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:04:43,314 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:04:43,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/zero_sum_m5.c [2022-10-16 10:04:43,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cdc19202/6cbf98adaa664ab6b48da5b2abfb9c3e/FLAG2e03302ac [2022-10-16 10:04:44,067 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:04:44,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_m5.c [2022-10-16 10:04:44,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cdc19202/6cbf98adaa664ab6b48da5b2abfb9c3e/FLAG2e03302ac [2022-10-16 10:04:44,392 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cdc19202/6cbf98adaa664ab6b48da5b2abfb9c3e [2022-10-16 10:04:44,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:04:44,401 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:04:44,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:04:44,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:04:44,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:04:44,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,414 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a87f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44, skipping insertion in model container [2022-10-16 10:04:44,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:04:44,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:04:44,616 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-crafted/zero_sum_m5.c[402,415] [2022-10-16 10:04:44,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:04:44,656 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:04:44,674 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-crafted/zero_sum_m5.c[402,415] [2022-10-16 10:04:44,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:04:44,742 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:04:44,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44 WrapperNode [2022-10-16 10:04:44,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:04:44,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:04:44,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:04:44,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:04:44,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,847 INFO L138 Inliner]: procedures = 15, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 191 [2022-10-16 10:04:44,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:04:44,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:04:44,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:04:44,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:04:44,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,922 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:04:44,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:04:44,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:04:44,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:04:44,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (1/1) ... [2022-10-16 10:04:44,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:04:44,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:44,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:04:45,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:04:45,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:04:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:04:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:04:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:04:45,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:04:45,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:04:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:04:45,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:04:45,142 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:04:45,145 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:04:45,522 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:04:45,533 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:04:45,533 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-10-16 10:04:45,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:04:45 BoogieIcfgContainer [2022-10-16 10:04:45,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:04:45,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:04:45,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:04:45,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:04:45,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:04:44" (1/3) ... [2022-10-16 10:04:45,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df69448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:04:45, skipping insertion in model container [2022-10-16 10:04:45,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:04:44" (2/3) ... [2022-10-16 10:04:45,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df69448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:04:45, skipping insertion in model container [2022-10-16 10:04:45,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:04:45" (3/3) ... [2022-10-16 10:04:45,549 INFO L112 eAbstractionObserver]: Analyzing ICFG zero_sum_m5.c [2022-10-16 10:04:45,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:04:45,574 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-10-16 10:04:45,646 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:04:45,659 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;@6cbf3fae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:04:45,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-10-16 10:04:45,674 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 84 states have (on average 1.7857142857142858) internal successors, (150), 126 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:45,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 10:04:45,693 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:45,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 10:04:45,695 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:45,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:45,705 INFO L85 PathProgramCache]: Analyzing trace with hash 889512652, now seen corresponding path program 1 times [2022-10-16 10:04:45,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:45,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492961815] [2022-10-16 10:04:45,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:45,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:46,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:46,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:46,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492961815] [2022-10-16 10:04:46,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492961815] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:04:46,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:04:46,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:04:46,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83126460] [2022-10-16 10:04:46,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:04:46,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:04:46,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:46,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:04:46,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:04:46,173 INFO L87 Difference]: Start difference. First operand has 127 states, 84 states have (on average 1.7857142857142858) internal successors, (150), 126 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:46,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:46,352 INFO L93 Difference]: Finished difference Result 369 states and 434 transitions. [2022-10-16 10:04:46,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:04:46,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 10:04:46,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:46,369 INFO L225 Difference]: With dead ends: 369 [2022-10-16 10:04:46,369 INFO L226 Difference]: Without dead ends: 233 [2022-10-16 10:04:46,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:04:46,379 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 131 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:46,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 401 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:46,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-10-16 10:04:46,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 123. [2022-10-16 10:04:46,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 81 states have (on average 1.654320987654321) internal successors, (134), 122 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:46,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 134 transitions. [2022-10-16 10:04:46,438 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 134 transitions. Word has length 6 [2022-10-16 10:04:46,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:46,439 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 134 transitions. [2022-10-16 10:04:46,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:46,440 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 134 transitions. [2022-10-16 10:04:46,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:04:46,440 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:46,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:46,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:04:46,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:46,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:46,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1805037039, now seen corresponding path program 1 times [2022-10-16 10:04:46,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:46,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026072806] [2022-10-16 10:04:46,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:46,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:46,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:46,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026072806] [2022-10-16 10:04:46,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026072806] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:04:46,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:04:46,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:04:46,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510209451] [2022-10-16 10:04:46,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:04:46,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:04:46,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:46,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:04:46,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:04:46,543 INFO L87 Difference]: Start difference. First operand 123 states and 134 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:46,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:46,616 INFO L93 Difference]: Finished difference Result 233 states and 253 transitions. [2022-10-16 10:04:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:04:46,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 10:04:46,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:46,618 INFO L225 Difference]: With dead ends: 233 [2022-10-16 10:04:46,619 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 10:04:46,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 10:04:46,625 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:46,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 230 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:46,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 10:04:46,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2022-10-16 10:04:46,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 81 states have (on average 1.6419753086419753) internal successors, (133), 122 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:46,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2022-10-16 10:04:46,643 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 7 [2022-10-16 10:04:46,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:46,644 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2022-10-16 10:04:46,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:46,644 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2022-10-16 10:04:46,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:04:46,645 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:46,645 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:46,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:04:46,646 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:46,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:46,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1894413816, now seen corresponding path program 1 times [2022-10-16 10:04:46,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:46,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71279799] [2022-10-16 10:04:46,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:46,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:46,913 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 10:04:46,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:46,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71279799] [2022-10-16 10:04:46,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71279799] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:46,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249603753] [2022-10-16 10:04:46,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:46,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:46,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:46,918 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:46,944 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 10:04:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:46,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:04:47,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:47,066 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 10:04:47,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:47,121 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 10:04:47,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249603753] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:47,122 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:47,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:04:47,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768643249] [2022-10-16 10:04:47,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:47,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:04:47,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:47,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:04:47,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:04:47,125 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:47,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:47,276 INFO L93 Difference]: Finished difference Result 469 states and 511 transitions. [2022-10-16 10:04:47,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:04:47,277 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 10:04:47,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:47,281 INFO L225 Difference]: With dead ends: 469 [2022-10-16 10:04:47,281 INFO L226 Difference]: Without dead ends: 468 [2022-10-16 10:04:47,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 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 10:04:47,284 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 626 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:47,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 844 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:47,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-10-16 10:04:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 134. [2022-10-16 10:04:47,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 92 states have (on average 1.6195652173913044) internal successors, (149), 133 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:47,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2022-10-16 10:04:47,313 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 10 [2022-10-16 10:04:47,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:47,315 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2022-10-16 10:04:47,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:47,316 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2022-10-16 10:04:47,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:04:47,317 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:47,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:47,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:47,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:47,534 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:47,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:47,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1402662451, now seen corresponding path program 1 times [2022-10-16 10:04:47,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:47,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338050962] [2022-10-16 10:04:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:47,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:47,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:47,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:47,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338050962] [2022-10-16 10:04:47,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338050962] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:47,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27764165] [2022-10-16 10:04:47,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:47,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:47,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:47,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:47,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:04:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:47,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:04:47,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:47,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:47,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:47,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:47,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27764165] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:47,972 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:47,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:04:47,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247730796] [2022-10-16 10:04:47,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:47,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:04:47,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:47,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:04:47,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:04:47,985 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:48,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:48,120 INFO L93 Difference]: Finished difference Result 245 states and 268 transitions. [2022-10-16 10:04:48,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:04:48,121 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 10:04:48,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:48,122 INFO L225 Difference]: With dead ends: 245 [2022-10-16 10:04:48,122 INFO L226 Difference]: Without dead ends: 135 [2022-10-16 10:04:48,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:04:48,125 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 24 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:48,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 531 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:48,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-10-16 10:04:48,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 134. [2022-10-16 10:04:48,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 92 states have (on average 1.608695652173913) internal successors, (148), 133 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:48,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 148 transitions. [2022-10-16 10:04:48,135 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 148 transitions. Word has length 11 [2022-10-16 10:04:48,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:48,135 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 148 transitions. [2022-10-16 10:04:48,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:48,136 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 148 transitions. [2022-10-16 10:04:48,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:04:48,137 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:48,137 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:04:48,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:48,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 10:04:48,352 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:48,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:48,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1402713897, now seen corresponding path program 1 times [2022-10-16 10:04:48,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:48,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752982753] [2022-10-16 10:04:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:48,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:48,485 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:48,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:48,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752982753] [2022-10-16 10:04:48,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752982753] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:48,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577537166] [2022-10-16 10:04:48,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:48,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:48,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:48,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:48,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:04:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:48,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:04:48,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:48,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:48,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:04:48,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577537166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:04:48,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:04:48,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:04:48,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824957704] [2022-10-16 10:04:48,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:04:48,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:04:48,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:48,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:04:48,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:04:48,587 INFO L87 Difference]: Start difference. First operand 134 states and 148 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:48,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:48,632 INFO L93 Difference]: Finished difference Result 134 states and 148 transitions. [2022-10-16 10:04:48,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:04:48,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 10:04:48,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:48,634 INFO L225 Difference]: With dead ends: 134 [2022-10-16 10:04:48,634 INFO L226 Difference]: Without dead ends: 133 [2022-10-16 10:04:48,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 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 10:04:48,636 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 247 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:48,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 365 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:04:48,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-10-16 10:04:48,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-10-16 10:04:48,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 92 states have (on average 1.576086956521739) internal successors, (145), 132 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 145 transitions. [2022-10-16 10:04:48,645 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 145 transitions. Word has length 11 [2022-10-16 10:04:48,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:48,645 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 145 transitions. [2022-10-16 10:04:48,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:48,646 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 145 transitions. [2022-10-16 10:04:48,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:04:48,646 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:48,647 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:48,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:48,862 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 10:04:48,864 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:48,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:48,865 INFO L85 PathProgramCache]: Analyzing trace with hash 591228023, now seen corresponding path program 2 times [2022-10-16 10:04:48,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:48,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74041988] [2022-10-16 10:04:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:48,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:49,479 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:49,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:49,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74041988] [2022-10-16 10:04:49,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74041988] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:49,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106781500] [2022-10-16 10:04:49,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:04:49,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:49,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:49,482 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:49,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:04:49,533 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:04:49,533 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:04:49,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 10:04:49,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:49,609 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:04:49,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:49,718 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 10:04:49,812 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 10:04:49,829 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:49,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:54,276 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_12| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post5#1| 1) |v_ULTIMATE.start_main_~i~1#1_12|)) (forall ((v_ArrVal_54 Int)) (< (+ (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_12| 2)) v_ArrVal_54) |c_ULTIMATE.start_main_~#a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808)))) is different from false [2022-10-16 10:04:58,280 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 23 treesize of output 21 [2022-10-16 10:04:58,290 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 142 treesize of output 138 [2022-10-16 10:04:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-10-16 10:04:58,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106781500] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:58,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:58,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-10-16 10:04:58,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640654031] [2022-10-16 10:04:58,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:58,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 10:04:58,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:58,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 10:04:58,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=376, Unknown=5, NotChecked=40, Total=506 [2022-10-16 10:04:58,428 INFO L87 Difference]: Start difference. First operand 133 states and 145 transitions. Second operand has 23 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 23 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:00,466 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|))) (and (<= (select .cse0 (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |c_ULTIMATE.start_main_~i~1#1| 2))) 32767) (<= (select .cse0 0) 32767) (= |c_ULTIMATE.start_main_~i~1#1| 0) (= |c_ULTIMATE.start_main_~#a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~1#1_12| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post5#1| 1) |v_ULTIMATE.start_main_~i~1#1_12|)) (forall ((v_ArrVal_54 Int)) (< (+ (select (store .cse0 (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_12| 2)) v_ArrVal_54) |c_ULTIMATE.start_main_~#a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808)))) (= |c_ULTIMATE.start_main_#t~post5#1| 0))) is different from false [2022-10-16 10:05:02,473 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|))) (and (<= (select .cse0 0) 32767) (= |c_ULTIMATE.start_main_~#a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~1#1_12| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post5#1| 1) |v_ULTIMATE.start_main_~i~1#1_12|)) (forall ((v_ArrVal_54 Int)) (< (+ (select (store .cse0 (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_12| 2)) v_ArrVal_54) |c_ULTIMATE.start_main_~#a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808)))) (= |c_ULTIMATE.start_main_#t~post5#1| 0))) is different from false [2022-10-16 10:05:04,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:04,779 INFO L93 Difference]: Finished difference Result 256 states and 286 transitions. [2022-10-16 10:05:04,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:05:04,779 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 23 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 10:05:04,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:04,781 INFO L225 Difference]: With dead ends: 256 [2022-10-16 10:05:04,781 INFO L226 Difference]: Without dead ends: 255 [2022-10-16 10:05:04,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=137, Invalid=622, Unknown=9, NotChecked=162, Total=930 [2022-10-16 10:05:04,783 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 442 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 402 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:04,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 496 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 722 Invalid, 0 Unknown, 402 Unchecked, 0.7s Time] [2022-10-16 10:05:04,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-10-16 10:05:04,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 135. [2022-10-16 10:05:04,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 94 states have (on average 1.574468085106383) internal successors, (148), 134 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:04,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 148 transitions. [2022-10-16 10:05:04,795 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 148 transitions. Word has length 15 [2022-10-16 10:05:04,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:04,795 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 148 transitions. [2022-10-16 10:05:04,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 23 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:04,796 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 148 transitions. [2022-10-16 10:05:04,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 10:05:04,796 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:04,797 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:04,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:05:04,997 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 10:05:04,998 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:04,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:04,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1148199594, now seen corresponding path program 1 times [2022-10-16 10:05:04,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:04,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931066174] [2022-10-16 10:05:04,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:05,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:05,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:05,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:05,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931066174] [2022-10-16 10:05:05,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931066174] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:05,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310528172] [2022-10-16 10:05:05,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:05,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:05,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:05,422 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:05:05,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:05:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:05,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 10:05:05,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:05,541 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:05:05,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:05,638 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 25 treesize of output 24 [2022-10-16 10:05:05,715 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 17 treesize of output 9 [2022-10-16 10:05:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:05,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:07,867 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_15| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post5#1| 1) |v_ULTIMATE.start_main_~i~1#1_15|)) (forall ((v_ArrVal_70 Int)) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~1#1_15| 2) |c_ULTIMATE.start_main_~#a~0#1.offset|) v_ArrVal_70) |c_ULTIMATE.start_main_~#a~0#1.offset|)))))) is different from false [2022-10-16 10:05:13,398 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 24 treesize of output 22 [2022-10-16 10:05:13,405 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 68 treesize of output 66 [2022-10-16 10:05:13,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-10-16 10:05:13,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310528172] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:13,471 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:13,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-10-16 10:05:13,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823549053] [2022-10-16 10:05:13,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:13,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 10:05:13,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:13,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 10:05:13,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=378, Unknown=3, NotChecked=40, Total=506 [2022-10-16 10:05:13,474 INFO L87 Difference]: Start difference. First operand 135 states and 148 transitions. Second operand has 23 states, 22 states have (on average 2.0) internal successors, (44), 23 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:15,506 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~1#1_15| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post5#1| 1) |v_ULTIMATE.start_main_~i~1#1_15|)) (forall ((v_ArrVal_70 Int)) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~1#1_15| 2) |c_ULTIMATE.start_main_~#a~0#1.offset|) v_ArrVal_70) |c_ULTIMATE.start_main_~#a~0#1.offset|)))))) (<= 0 (+ (select .cse0 (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |c_ULTIMATE.start_main_~i~1#1| 2))) 32768)) (<= 0 (+ (select .cse0 0) 32768)) (= |c_ULTIMATE.start_main_~i~1#1| 0) (= |c_ULTIMATE.start_main_~#a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (= |c_ULTIMATE.start_main_#t~post5#1| 0))) is different from false [2022-10-16 10:05:17,512 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|))) (and (forall ((|v_ULTIMATE.start_main_~i~1#1_15| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post5#1| 1) |v_ULTIMATE.start_main_~i~1#1_15|)) (forall ((v_ArrVal_70 Int)) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~1#1_15| 2) |c_ULTIMATE.start_main_~#a~0#1.offset|) v_ArrVal_70) |c_ULTIMATE.start_main_~#a~0#1.offset|)))))) (<= 0 (+ (select .cse0 0) 32768)) (= |c_ULTIMATE.start_main_~#a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (= |c_ULTIMATE.start_main_#t~post5#1| 0))) is different from false [2022-10-16 10:05:19,566 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|))) (and (<= 0 |c_ULTIMATE.start_main_#t~post5#1|) (forall ((|v_ULTIMATE.start_main_~i~1#1_15| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post5#1| 1) |v_ULTIMATE.start_main_~i~1#1_15|)) (forall ((v_ArrVal_70 Int)) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~1#1_15| 2) |c_ULTIMATE.start_main_~#a~0#1.offset|) v_ArrVal_70) |c_ULTIMATE.start_main_~#a~0#1.offset|)))))) (<= 1 |c_ULTIMATE.start_main_~i~1#1|) (<= 0 (+ (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.offset|) 32768)) (<= 0 (+ (select .cse0 0) 32768)) (<= 0 |c_ULTIMATE.start_main_~sum~0#1|) (not (= (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |c_ULTIMATE.start_main_~i~1#1| 2)) 0)) (= |c_ULTIMATE.start_main_~#a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:05:21,570 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|))) (and (<= 0 |c_ULTIMATE.start_main_#t~post5#1|) (forall ((|v_ULTIMATE.start_main_~i~1#1_15| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post5#1| 1) |v_ULTIMATE.start_main_~i~1#1_15|)) (forall ((v_ArrVal_70 Int)) (< 0 (+ 9223372036854775809 |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~1#1_15| 2) |c_ULTIMATE.start_main_~#a~0#1.offset|) v_ArrVal_70) |c_ULTIMATE.start_main_~#a~0#1.offset|)))))) (<= 0 (+ (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.offset|) 32768)) (<= 0 (+ (select .cse0 0) 32768)) (<= 0 |c_ULTIMATE.start_main_~sum~0#1|) (= |c_ULTIMATE.start_main_~#a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:05:23,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:23,229 INFO L93 Difference]: Finished difference Result 255 states and 285 transitions. [2022-10-16 10:05:23,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:05:23,230 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 23 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 10:05:23,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:23,231 INFO L225 Difference]: With dead ends: 255 [2022-10-16 10:05:23,232 INFO L226 Difference]: Without dead ends: 254 [2022-10-16 10:05:23,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=144, Invalid=570, Unknown=8, NotChecked=270, Total=992 [2022-10-16 10:05:23,234 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 373 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 303 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:23,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 772 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 913 Invalid, 0 Unknown, 303 Unchecked, 0.7s Time] [2022-10-16 10:05:23,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-10-16 10:05:23,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 136. [2022-10-16 10:05:23,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 95 states have (on average 1.568421052631579) internal successors, (149), 135 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:23,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 149 transitions. [2022-10-16 10:05:23,249 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 149 transitions. Word has length 16 [2022-10-16 10:05:23,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:23,249 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 149 transitions. [2022-10-16 10:05:23,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.0) internal successors, (44), 23 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:23,250 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 149 transitions. [2022-10-16 10:05:23,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 10:05:23,252 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:23,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:23,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:05:23,468 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 10:05:23,469 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:23,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1234401639, now seen corresponding path program 1 times [2022-10-16 10:05:23,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:23,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337440147] [2022-10-16 10:05:23,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:23,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:05:23,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:23,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337440147] [2022-10-16 10:05:23,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337440147] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:05:23,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:05:23,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:05:23,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153844321] [2022-10-16 10:05:23,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:05:23,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:05:23,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:23,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:05:23,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:05:23,540 INFO L87 Difference]: Start difference. First operand 136 states and 149 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:23,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:23,641 INFO L93 Difference]: Finished difference Result 330 states and 359 transitions. [2022-10-16 10:05:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:05:23,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 10:05:23,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:23,644 INFO L225 Difference]: With dead ends: 330 [2022-10-16 10:05:23,644 INFO L226 Difference]: Without dead ends: 231 [2022-10-16 10:05:23,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 10:05:23,645 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 306 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:23,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 171 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:05:23,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-10-16 10:05:23,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 144. [2022-10-16 10:05:23,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 143 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:23,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 156 transitions. [2022-10-16 10:05:23,660 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 156 transitions. Word has length 17 [2022-10-16 10:05:23,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:23,660 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 156 transitions. [2022-10-16 10:05:23,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:23,661 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 156 transitions. [2022-10-16 10:05:23,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 10:05:23,661 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:23,661 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:23,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 10:05:23,662 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:23,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:23,662 INFO L85 PathProgramCache]: Analyzing trace with hash -386783092, now seen corresponding path program 1 times [2022-10-16 10:05:23,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:23,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941341080] [2022-10-16 10:05:23,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:23,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:23,701 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:05:23,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:23,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941341080] [2022-10-16 10:05:23,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941341080] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:05:23,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:05:23,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:05:23,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951461324] [2022-10-16 10:05:23,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:05:23,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:05:23,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:23,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:05:23,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:05:23,704 INFO L87 Difference]: Start difference. First operand 144 states and 156 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:23,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:23,808 INFO L93 Difference]: Finished difference Result 231 states and 243 transitions. [2022-10-16 10:05:23,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:05:23,809 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 10:05:23,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:23,810 INFO L225 Difference]: With dead ends: 231 [2022-10-16 10:05:23,810 INFO L226 Difference]: Without dead ends: 229 [2022-10-16 10:05:23,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:05:23,812 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 84 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:23,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 286 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:05:23,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-10-16 10:05:23,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 147. [2022-10-16 10:05:23,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 106 states have (on average 1.5) internal successors, (159), 146 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:23,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 159 transitions. [2022-10-16 10:05:23,827 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 159 transitions. Word has length 18 [2022-10-16 10:05:23,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:23,828 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 159 transitions. [2022-10-16 10:05:23,828 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:23,828 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 159 transitions. [2022-10-16 10:05:23,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 10:05:23,829 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:23,829 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:23,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 10:05:23,830 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:23,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:23,830 INFO L85 PathProgramCache]: Analyzing trace with hash 742231581, now seen corresponding path program 1 times [2022-10-16 10:05:23,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:23,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886437107] [2022-10-16 10:05:23,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:23,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:24,448 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:24,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:24,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886437107] [2022-10-16 10:05:24,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886437107] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:24,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669046644] [2022-10-16 10:05:24,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:24,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:24,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:24,450 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:05:24,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:05:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:24,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 10:05:24,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:24,545 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:05:24,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:24,661 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 20 [2022-10-16 10:05:25,005 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:25,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:05:25,031 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:25,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:25,542 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 46 treesize of output 42 [2022-10-16 10:05:25,561 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:25,562 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 748 treesize of output 700 [2022-10-16 10:05:25,800 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:25,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669046644] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:25,801 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:25,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2022-10-16 10:05:25,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446876669] [2022-10-16 10:05:25,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:25,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:05:25,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:25,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:05:25,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1113, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:05:25,804 INFO L87 Difference]: Start difference. First operand 147 states and 159 transitions. Second operand has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:27,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:27,048 INFO L93 Difference]: Finished difference Result 187 states and 202 transitions. [2022-10-16 10:05:27,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 10:05:27,049 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 10:05:27,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:27,050 INFO L225 Difference]: With dead ends: 187 [2022-10-16 10:05:27,051 INFO L226 Difference]: Without dead ends: 186 [2022-10-16 10:05:27,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=275, Invalid=1887, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 10:05:27,053 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 123 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 173 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:27,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1186 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1168 Invalid, 0 Unknown, 173 Unchecked, 0.8s Time] [2022-10-16 10:05:27,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-10-16 10:05:27,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 156. [2022-10-16 10:05:27,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 115 states have (on average 1.4695652173913043) internal successors, (169), 155 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:27,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 169 transitions. [2022-10-16 10:05:27,069 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 169 transitions. Word has length 21 [2022-10-16 10:05:27,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:27,069 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 169 transitions. [2022-10-16 10:05:27,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 169 transitions. [2022-10-16 10:05:27,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:05:27,071 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:27,071 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:27,099 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 10:05:27,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:27,285 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:27,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:27,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1534342596, now seen corresponding path program 1 times [2022-10-16 10:05:27,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:27,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887904741] [2022-10-16 10:05:27,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:27,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:27,903 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:27,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:27,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887904741] [2022-10-16 10:05:27,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887904741] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:27,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518238739] [2022-10-16 10:05:27,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:27,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:27,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:27,905 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:05:27,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:05:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:27,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 10:05:27,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:28,006 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:05:28,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:28,118 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 10:05:28,468 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:28,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 33 treesize of output 17 [2022-10-16 10:05:28,501 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:28,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:29,005 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 47 treesize of output 43 [2022-10-16 10:05:29,014 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:29,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 780 treesize of output 732 [2022-10-16 10:05:29,197 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:29,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518238739] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:29,198 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:29,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2022-10-16 10:05:29,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780551142] [2022-10-16 10:05:29,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:29,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:05:29,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:29,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:05:29,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1113, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:05:29,201 INFO L87 Difference]: Start difference. First operand 156 states and 169 transitions. Second operand has 36 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 36 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:30,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:30,512 INFO L93 Difference]: Finished difference Result 180 states and 195 transitions. [2022-10-16 10:05:30,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 10:05:30,513 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 36 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 10:05:30,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:30,514 INFO L225 Difference]: With dead ends: 180 [2022-10-16 10:05:30,514 INFO L226 Difference]: Without dead ends: 179 [2022-10-16 10:05:30,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=272, Invalid=1890, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 10:05:30,516 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 75 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 1101 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 215 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:30,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 1101 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1105 Invalid, 0 Unknown, 215 Unchecked, 0.8s Time] [2022-10-16 10:05:30,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-10-16 10:05:30,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 157. [2022-10-16 10:05:30,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 116 states have (on average 1.4655172413793103) internal successors, (170), 156 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:30,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 170 transitions. [2022-10-16 10:05:30,533 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 170 transitions. Word has length 22 [2022-10-16 10:05:30,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:30,534 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 170 transitions. [2022-10-16 10:05:30,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.7714285714285714) internal successors, (62), 36 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:30,534 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 170 transitions. [2022-10-16 10:05:30,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:05:30,535 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:30,535 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 10:05:30,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:05:30,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:30,748 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:30,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:30,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1716489148, now seen corresponding path program 2 times [2022-10-16 10:05:30,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:30,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499504055] [2022-10-16 10:05:30,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:30,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:30,882 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 10:05:30,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:30,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499504055] [2022-10-16 10:05:30,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499504055] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:30,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843558131] [2022-10-16 10:05:30,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:05:30,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:30,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:30,884 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:05:30,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:05:30,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:05:30,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:05:30,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:05:30,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:31,002 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 10:05:31,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:31,064 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 10:05:31,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843558131] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:31,065 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:31,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-16 10:05:31,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068530231] [2022-10-16 10:05:31,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:31,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:05:31,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:31,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:05:31,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:05:31,067 INFO L87 Difference]: Start difference. First operand 157 states and 170 transitions. Second operand has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:31,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:31,477 INFO L93 Difference]: Finished difference Result 655 states and 708 transitions. [2022-10-16 10:05:31,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:05:31,479 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 10:05:31,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:31,483 INFO L225 Difference]: With dead ends: 655 [2022-10-16 10:05:31,483 INFO L226 Difference]: Without dead ends: 654 [2022-10-16 10:05:31,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 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 10:05:31,485 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 2304 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:31,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2304 Valid, 1009 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:05:31,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2022-10-16 10:05:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 154. [2022-10-16 10:05:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 114 states have (on average 1.4649122807017543) internal successors, (167), 153 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:31,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 167 transitions. [2022-10-16 10:05:31,507 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 167 transitions. Word has length 22 [2022-10-16 10:05:31,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:31,507 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 167 transitions. [2022-10-16 10:05:31,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:31,508 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 167 transitions. [2022-10-16 10:05:31,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:05:31,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:31,509 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:31,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:05:31,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 10:05:31,723 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:31,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:31,724 INFO L85 PathProgramCache]: Analyzing trace with hash 319932813, now seen corresponding path program 1 times [2022-10-16 10:05:31,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:31,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16509898] [2022-10-16 10:05:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:31,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:31,803 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:05:31,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:31,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16509898] [2022-10-16 10:05:31,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16509898] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:31,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591707717] [2022-10-16 10:05:31,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:31,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:31,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:31,808 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:05:31,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:05:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:31,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:05:31,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:31,925 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:05:31,925 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:05:31,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591707717] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:31,972 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:31,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 10:05:31,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676794780] [2022-10-16 10:05:31,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:31,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 10:05:31,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:31,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 10:05:31,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:05:31,974 INFO L87 Difference]: Start difference. First operand 154 states and 167 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:32,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:32,233 INFO L93 Difference]: Finished difference Result 353 states and 375 transitions. [2022-10-16 10:05:32,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 10:05:32,233 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 10:05:32,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:32,235 INFO L225 Difference]: With dead ends: 353 [2022-10-16 10:05:32,235 INFO L226 Difference]: Without dead ends: 246 [2022-10-16 10:05:32,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:05:32,236 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 397 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:32,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 413 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:05:32,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-10-16 10:05:32,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 155. [2022-10-16 10:05:32,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 115 states have (on average 1.4521739130434783) internal successors, (167), 154 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:32,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 167 transitions. [2022-10-16 10:05:32,254 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 167 transitions. Word has length 23 [2022-10-16 10:05:32,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:32,254 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 167 transitions. [2022-10-16 10:05:32,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:32,255 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 167 transitions. [2022-10-16 10:05:32,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:05:32,255 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:32,256 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:32,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:05:32,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 10:05:32,471 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:32,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:32,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1329454374, now seen corresponding path program 1 times [2022-10-16 10:05:32,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:32,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547434447] [2022-10-16 10:05:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:32,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:05:32,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:32,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547434447] [2022-10-16 10:05:32,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547434447] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:32,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156718793] [2022-10-16 10:05:32,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:32,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:32,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:32,531 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:05:32,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:05:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:32,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:05:32,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:32,631 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:05:32,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:05:32,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156718793] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:32,668 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:32,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:05:32,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080792484] [2022-10-16 10:05:32,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:32,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:05:32,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:32,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:05:32,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:05:32,670 INFO L87 Difference]: Start difference. First operand 155 states and 167 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:32,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:32,867 INFO L93 Difference]: Finished difference Result 266 states and 282 transitions. [2022-10-16 10:05:32,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:05:32,867 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 10:05:32,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:32,869 INFO L225 Difference]: With dead ends: 266 [2022-10-16 10:05:32,869 INFO L226 Difference]: Without dead ends: 265 [2022-10-16 10:05:32,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 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 10:05:32,870 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 196 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:32,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 373 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:05:32,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-10-16 10:05:32,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 171. [2022-10-16 10:05:32,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 131 states have (on average 1.4732824427480915) internal successors, (193), 170 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:32,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 193 transitions. [2022-10-16 10:05:32,889 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 193 transitions. Word has length 24 [2022-10-16 10:05:32,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:32,890 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 193 transitions. [2022-10-16 10:05:32,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:32,890 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 193 transitions. [2022-10-16 10:05:32,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:05:32,891 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:32,891 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:32,929 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 10:05:33,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 10:05:33,105 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:33,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:33,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1736587295, now seen corresponding path program 1 times [2022-10-16 10:05:33,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:33,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821401404] [2022-10-16 10:05:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:33,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:33,189 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:05:33,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:33,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821401404] [2022-10-16 10:05:33,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821401404] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:33,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389765211] [2022-10-16 10:05:33,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:33,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:33,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:33,196 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 10:05:33,224 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 10:05:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:33,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:05:33,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:33,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:05:33,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:05:33,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389765211] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:05:33,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:05:33,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:05:33,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030438121] [2022-10-16 10:05:33,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:05:33,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:05:33,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:33,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:05:33,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:05:33,286 INFO L87 Difference]: Start difference. First operand 171 states and 193 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:33,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:33,405 INFO L93 Difference]: Finished difference Result 253 states and 275 transitions. [2022-10-16 10:05:33,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:05:33,405 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 10:05:33,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:33,409 INFO L225 Difference]: With dead ends: 253 [2022-10-16 10:05:33,409 INFO L226 Difference]: Without dead ends: 252 [2022-10-16 10:05:33,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 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 10:05:33,413 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 95 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:33,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 341 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:05:33,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-10-16 10:05:33,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 170. [2022-10-16 10:05:33,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 131 states have (on average 1.450381679389313) internal successors, (190), 169 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:33,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 190 transitions. [2022-10-16 10:05:33,440 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 190 transitions. Word has length 25 [2022-10-16 10:05:33,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:33,440 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 190 transitions. [2022-10-16 10:05:33,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:33,440 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 190 transitions. [2022-10-16 10:05:33,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:05:33,445 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:33,445 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:33,488 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 10:05:33,659 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,SelfDestructingSolverStorable14 [2022-10-16 10:05:33,660 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:33,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:33,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1881889603, now seen corresponding path program 2 times [2022-10-16 10:05:33,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:33,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713953929] [2022-10-16 10:05:33,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:33,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:33,826 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:33,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:33,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713953929] [2022-10-16 10:05:33,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713953929] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:33,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716781092] [2022-10-16 10:05:33,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:05:33,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:33,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:33,830 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 10:05:33,838 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 10:05:33,884 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:05:33,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:05:33,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:05:33,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:34,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:34,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716781092] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:34,163 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:34,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:05:34,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845936651] [2022-10-16 10:05:34,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:34,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:05:34,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:34,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:05:34,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:05:34,165 INFO L87 Difference]: Start difference. First operand 170 states and 190 transitions. Second operand has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:34,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:34,670 INFO L93 Difference]: Finished difference Result 499 states and 542 transitions. [2022-10-16 10:05:34,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:05:34,670 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 10:05:34,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:34,672 INFO L225 Difference]: With dead ends: 499 [2022-10-16 10:05:34,672 INFO L226 Difference]: Without dead ends: 373 [2022-10-16 10:05:34,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 36 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2022-10-16 10:05:34,674 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 426 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:34,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1355 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:05:34,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-10-16 10:05:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 184. [2022-10-16 10:05:34,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 145 states have (on average 1.4068965517241379) internal successors, (204), 183 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:34,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 204 transitions. [2022-10-16 10:05:34,695 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 204 transitions. Word has length 27 [2022-10-16 10:05:34,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:34,695 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 204 transitions. [2022-10-16 10:05:34,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:34,696 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 204 transitions. [2022-10-16 10:05:34,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:05:34,696 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:34,696 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:34,723 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 10:05:34,910 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,SelfDestructingSolverStorable15 [2022-10-16 10:05:34,911 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:34,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:34,912 INFO L85 PathProgramCache]: Analyzing trace with hash 314631475, now seen corresponding path program 2 times [2022-10-16 10:05:34,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:34,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160635484] [2022-10-16 10:05:34,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:34,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:35,814 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:35,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:35,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160635484] [2022-10-16 10:05:35,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160635484] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:35,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449992411] [2022-10-16 10:05:35,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:05:35,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:35,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:35,821 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 10:05:35,831 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 10:05:35,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:05:35,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:05:35,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 10:05:35,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:35,911 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:05:36,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:36,050 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 20 [2022-10-16 10:05:36,619 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:36,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 35 treesize of output 15 [2022-10-16 10:05:36,653 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:36,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:37,325 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 48 treesize of output 44 [2022-10-16 10:05:37,333 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:37,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 792 treesize of output 744 [2022-10-16 10:05:37,541 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:37,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449992411] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:37,541 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:37,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 44 [2022-10-16 10:05:37,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924930609] [2022-10-16 10:05:37,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:37,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-10-16 10:05:37,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:37,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-10-16 10:05:37,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1750, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 10:05:37,544 INFO L87 Difference]: Start difference. First operand 184 states and 204 transitions. Second operand has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:39,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:39,722 INFO L93 Difference]: Finished difference Result 227 states and 251 transitions. [2022-10-16 10:05:39,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 10:05:39,723 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 10:05:39,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:39,724 INFO L225 Difference]: With dead ends: 227 [2022-10-16 10:05:39,725 INFO L226 Difference]: Without dead ends: 226 [2022-10-16 10:05:39,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1183 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=554, Invalid=3868, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:05:39,728 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 202 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 236 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:39,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1347 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1552 Invalid, 0 Unknown, 236 Unchecked, 1.1s Time] [2022-10-16 10:05:39,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-10-16 10:05:39,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 191. [2022-10-16 10:05:39,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 152 states have (on average 1.394736842105263) internal successors, (212), 190 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:39,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 212 transitions. [2022-10-16 10:05:39,753 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 212 transitions. Word has length 29 [2022-10-16 10:05:39,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:39,754 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 212 transitions. [2022-10-16 10:05:39,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:39,754 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 212 transitions. [2022-10-16 10:05:39,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:05:39,755 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:39,755 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:39,784 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 10:05:39,968 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,SelfDestructingSolverStorable16 [2022-10-16 10:05:39,969 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:39,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:39,970 INFO L85 PathProgramCache]: Analyzing trace with hash 516964005, now seen corresponding path program 3 times [2022-10-16 10:05:39,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:39,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335776822] [2022-10-16 10:05:39,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:39,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:40,936 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:40,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:40,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335776822] [2022-10-16 10:05:40,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335776822] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:40,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247058930] [2022-10-16 10:05:40,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:05:40,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:40,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:40,939 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 10:05:40,965 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 10:05:41,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-10-16 10:05:41,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:05:41,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 39 conjunts are in the unsatisfiable core [2022-10-16 10:05:41,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:41,071 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 10:05:41,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:41,233 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 10:05:41,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:41,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:41,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:41,418 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:41,419 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 1 case distinctions, treesize of input 32 treesize of output 34 [2022-10-16 10:05:41,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:41,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:41,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:41,581 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:41,582 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 1 case distinctions, treesize of input 32 treesize of output 34 [2022-10-16 10:05:42,060 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:42,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:05:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:42,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:06:07,809 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_39| Int) (v_ArrVal_229 Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_39| (+ |c_ULTIMATE.start_main_~i~1#1| 1)) (< (+ |v_ULTIMATE.start_main_~i~1#1_39| 1) c_~SIZE~0) (< (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_39| 2)) v_ArrVal_229))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 2)))) 9223372036854775808))) is different from false [2022-10-16 10:06:08,881 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_39| Int) (v_ArrVal_229 Int) (v_ArrVal_227 Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_39| (+ |c_ULTIMATE.start_main_~i~1#1| 1)) (< (+ |v_ULTIMATE.start_main_~i~1#1_39| 1) c_~SIZE~0) (< (let ((.cse0 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |c_ULTIMATE.start_main_~i~1#1| 2)) v_ArrVal_227) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_39| 2)) v_ArrVal_229))) (+ (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 2)))) 9223372036854775808))) is different from false [2022-10-16 10:06:10,909 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_40| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post5#1| 1) |v_ULTIMATE.start_main_~i~1#1_40|)) (forall ((|v_ULTIMATE.start_main_~i~1#1_39| Int) (v_ArrVal_229 Int) (v_ArrVal_227 Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_39| (+ |v_ULTIMATE.start_main_~i~1#1_40| 1)) (< (let ((.cse0 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_40| 2)) v_ArrVal_227) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_39| 2)) v_ArrVal_229))) (+ (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 2)))) 9223372036854775808) (< (+ |v_ULTIMATE.start_main_~i~1#1_39| 1) c_~SIZE~0))))) is different from false [2022-10-16 10:06:12,964 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_39| Int) (|v_ULTIMATE.start_main_~i~1#1_40| Int) (v_ArrVal_229 Int) (v_ArrVal_227 Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_39| (+ |v_ULTIMATE.start_main_~i~1#1_40| 1)) (< (let ((.cse0 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_40| 2)) v_ArrVal_227) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_39| 2)) v_ArrVal_229))) (+ (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 2)))) 9223372036854775808) (< (+ |v_ULTIMATE.start_main_~i~1#1_39| 1) c_~SIZE~0) (< |v_ULTIMATE.start_main_~i~1#1_40| (+ |c_ULTIMATE.start_main_~i~1#1| 1)))) is different from false [2022-10-16 10:06:15,010 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~1#1_39| Int) (|v_ULTIMATE.start_main_~i~1#1_40| Int) (v_ArrVal_229 Int) (v_ArrVal_227 Int) (v_ArrVal_226 Int)) (or (< |v_ULTIMATE.start_main_~i~1#1_39| (+ |v_ULTIMATE.start_main_~i~1#1_40| 1)) (< 32767 v_ArrVal_226) (< (+ |v_ULTIMATE.start_main_~i~1#1_39| 1) c_~SIZE~0) (< (let ((.cse0 (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0#1.base|) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |c_ULTIMATE.start_main_~i~1#1| 2)) v_ArrVal_226) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_40| 2)) v_ArrVal_227) (+ |c_ULTIMATE.start_main_~#a~0#1.offset| (* |v_ULTIMATE.start_main_~i~1#1_39| 2)) v_ArrVal_229))) (+ (select .cse0 |c_ULTIMATE.start_main_~#a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 (+ |c_ULTIMATE.start_main_~#a~0#1.offset| 2)))) 9223372036854775808) (< |v_ULTIMATE.start_main_~i~1#1_40| (+ |c_ULTIMATE.start_main_~i~1#1| 1)))) is different from false [2022-10-16 10:07:57,102 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 74 treesize of output 70 [2022-10-16 10:07:57,133 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:07:57,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 44442 treesize of output 43674