/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/xor2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 09:59:31,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 09:59:31,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 09:59:31,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 09:59:31,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 09:59:31,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 09:59:31,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 09:59:31,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 09:59:31,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 09:59:31,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 09:59:31,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 09:59:31,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 09:59:31,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 09:59:31,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 09:59:31,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 09:59:31,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 09:59:31,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 09:59:31,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 09:59:31,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 09:59:31,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 09:59:31,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 09:59:31,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 09:59:31,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 09:59:31,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 09:59:31,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 09:59:31,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 09:59:31,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 09:59:31,728 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 09:59:31,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 09:59:31,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 09:59:31,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 09:59:31,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 09:59:31,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 09:59:31,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 09:59:31,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 09:59:31,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 09:59:31,735 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 09:59:31,763 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 09:59:31,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 09:59:31,764 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 09:59:31,764 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 09:59:31,765 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 09:59:31,765 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 09:59:31,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 09:59:31,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 09:59:31,766 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 09:59:31,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 09:59:31,767 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 09:59:31,767 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 09:59:31,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 09:59:31,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 09:59:31,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 09:59:31,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 09:59:31,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 09:59:31,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 09:59:31,769 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 09:59:31,769 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 09:59:31,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 09:59:31,769 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 09:59:31,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 09:59:31,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 09:59:31,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 09:59:31,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 09:59:31,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 09:59:31,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 09:59:31,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 09:59:31,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 09:59:31,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 09:59:31,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 09:59:31,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 09:59:31,772 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 09:59:32,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 09:59:32,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 09:59:32,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 09:59:32,150 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 09:59:32,151 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 09:59:32,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/xor2.i [2022-10-16 09:59:32,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dff37f817/5b9d2b972a6649ccb280fa802f20b438/FLAG93dd998f6 [2022-10-16 09:59:32,902 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 09:59:32,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/xor2.i [2022-10-16 09:59:32,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dff37f817/5b9d2b972a6649ccb280fa802f20b438/FLAG93dd998f6 [2022-10-16 09:59:33,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dff37f817/5b9d2b972a6649ccb280fa802f20b438 [2022-10-16 09:59:33,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 09:59:33,282 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 09:59:33,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 09:59:33,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 09:59:33,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 09:59:33,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a21e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33, skipping insertion in model container [2022-10-16 09:59:33,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 09:59:33,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 09:59:33,485 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/xor2.i[1291,1304] [2022-10-16 09:59:33,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 09:59:33,495 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 09:59:33,520 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/xor2.i[1291,1304] [2022-10-16 09:59:33,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 09:59:33,537 INFO L208 MainTranslator]: Completed translation [2022-10-16 09:59:33,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33 WrapperNode [2022-10-16 09:59:33,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 09:59:33,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 09:59:33,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 09:59:33,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 09:59:33,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,581 INFO L138 Inliner]: procedures = 16, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-10-16 09:59:33,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 09:59:33,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 09:59:33,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 09:59:33,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 09:59:33,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,611 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 09:59:33,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 09:59:33,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 09:59:33,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 09:59:33,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (1/1) ... [2022-10-16 09:59:33,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 09:59:33,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:59:33,663 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 09:59:33,669 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 09:59:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 09:59:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 09:59:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 09:59:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 09:59:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 09:59:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 09:59:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 09:59:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure xor [2022-10-16 09:59:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure xor [2022-10-16 09:59:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 09:59:33,807 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 09:59:33,809 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 09:59:34,018 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 09:59:34,028 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 09:59:34,028 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 09:59:34,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:59:34 BoogieIcfgContainer [2022-10-16 09:59:34,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 09:59:34,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 09:59:34,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 09:59:34,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 09:59:34,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 09:59:33" (1/3) ... [2022-10-16 09:59:34,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1823e378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:59:34, skipping insertion in model container [2022-10-16 09:59:34,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:59:33" (2/3) ... [2022-10-16 09:59:34,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1823e378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:59:34, skipping insertion in model container [2022-10-16 09:59:34,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:59:34" (3/3) ... [2022-10-16 09:59:34,044 INFO L112 eAbstractionObserver]: Analyzing ICFG xor2.i [2022-10-16 09:59:34,064 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 09:59:34,065 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-10-16 09:59:34,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 09:59:34,194 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;@52cd9550, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 09:59:34,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-10-16 09:59:34,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 35 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 09:59:34,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 09:59:34,208 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:34,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 09:59:34,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:34,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:34,216 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 09:59:34,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:34,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736267569] [2022-10-16 09:59:34,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:34,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:34,680 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 09:59:34,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:34,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736267569] [2022-10-16 09:59:34,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736267569] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:34,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:59:34,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:59:34,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139040774] [2022-10-16 09:59:34,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:34,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:59:34,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:34,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:59:34,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:59:34,794 INFO L87 Difference]: Start difference. First operand has 40 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 35 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:34,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:34,920 INFO L93 Difference]: Finished difference Result 78 states and 97 transitions. [2022-10-16 09:59:34,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:59:34,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 09:59:34,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:34,936 INFO L225 Difference]: With dead ends: 78 [2022-10-16 09:59:34,937 INFO L226 Difference]: Without dead ends: 38 [2022-10-16 09:59:34,941 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 09:59:34,946 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 3 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:34,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 116 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:59:34,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-16 09:59:34,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-10-16 09:59:34,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 34 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-10-16 09:59:34,994 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 5 [2022-10-16 09:59:34,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:34,995 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-10-16 09:59:34,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-10-16 09:59:34,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 09:59:34,996 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:34,996 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 09:59:34,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 09:59:34,997 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:34,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:34,998 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 09:59:34,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:34,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983808868] [2022-10-16 09:59:34,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:34,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:35,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 09:59:35,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:35,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983808868] [2022-10-16 09:59:35,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983808868] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:35,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:59:35,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:59:35,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865450953] [2022-10-16 09:59:35,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:35,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:59:35,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:35,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:59:35,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:59:35,088 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:35,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:35,117 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2022-10-16 09:59:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:59:35,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 09:59:35,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:35,119 INFO L225 Difference]: With dead ends: 38 [2022-10-16 09:59:35,119 INFO L226 Difference]: Without dead ends: 37 [2022-10-16 09:59:35,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 09:59:35,122 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 5 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:35,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 93 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:35,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-16 09:59:35,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-10-16 09:59:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 33 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:35,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-10-16 09:59:35,132 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 9 [2022-10-16 09:59:35,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:35,132 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-10-16 09:59:35,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:35,133 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-10-16 09:59:35,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 09:59:35,133 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:35,134 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 09:59:35,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 09:59:35,134 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:35,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:35,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 09:59:35,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:35,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618526412] [2022-10-16 09:59:35,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:35,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:35,358 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 09:59:35,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:35,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618526412] [2022-10-16 09:59:35,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618526412] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:59:35,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388823264] [2022-10-16 09:59:35,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:35,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:35,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:59:35,364 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 09:59:35,367 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 09:59:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:35,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 09:59:35,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:59:35,530 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 09:59:35,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:59:35,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388823264] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:35,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 09:59:35,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 09:59:35,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071981261] [2022-10-16 09:59:35,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:35,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 09:59:35,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:35,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 09:59:35,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 09:59:35,534 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:35,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:35,583 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-10-16 09:59:35,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 09:59:35,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 09:59:35,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:35,585 INFO L225 Difference]: With dead ends: 37 [2022-10-16 09:59:35,585 INFO L226 Difference]: Without dead ends: 36 [2022-10-16 09:59:35,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 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 09:59:35,588 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:35,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 105 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:35,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-16 09:59:35,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2022-10-16 09:59:35,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:35,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-10-16 09:59:35,597 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 10 [2022-10-16 09:59:35,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:35,597 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-10-16 09:59:35,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:35,598 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-10-16 09:59:35,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 09:59:35,598 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:35,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:35,639 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 09:59:35,812 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 09:59:35,813 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:35,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:35,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1524531306, now seen corresponding path program 1 times [2022-10-16 09:59:35,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:35,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267200587] [2022-10-16 09:59:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:35,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:35,911 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 09:59:35,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:35,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267200587] [2022-10-16 09:59:35,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267200587] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:59:35,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754637054] [2022-10-16 09:59:35,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:35,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:35,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:59:35,914 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 09:59:35,931 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 09:59:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:35,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 09:59:35,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:59:36,001 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 09:59:36,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:59:36,039 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 09:59:36,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754637054] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:59:36,040 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:59:36,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 09:59:36,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750767421] [2022-10-16 09:59:36,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:59:36,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 09:59:36,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:36,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 09:59:36,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 09:59:36,043 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:36,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:36,093 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2022-10-16 09:59:36,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 09:59:36,094 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 09:59:36,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:36,095 INFO L225 Difference]: With dead ends: 67 [2022-10-16 09:59:36,095 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 09:59:36,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 09:59:36,098 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 13 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:36,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 125 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:36,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 09:59:36,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-10-16 09:59:36,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 37 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:36,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-10-16 09:59:36,107 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 12 [2022-10-16 09:59:36,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:36,108 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-10-16 09:59:36,108 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:36,108 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-10-16 09:59:36,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 09:59:36,109 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:36,109 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:36,148 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 09:59:36,325 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 09:59:36,326 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:36,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1491940766, now seen corresponding path program 2 times [2022-10-16 09:59:36,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:36,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420325888] [2022-10-16 09:59:36,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:36,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:36,411 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 09:59:36,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:36,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420325888] [2022-10-16 09:59:36,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420325888] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:36,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:59:36,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:59:36,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20145644] [2022-10-16 09:59:36,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:36,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:59:36,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:36,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:59:36,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:59:36,415 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:36,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:36,443 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2022-10-16 09:59:36,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:59:36,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 09:59:36,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:36,445 INFO L225 Difference]: With dead ends: 70 [2022-10-16 09:59:36,445 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 09:59:36,445 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 09:59:36,447 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:36,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 93 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:36,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 09:59:36,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-10-16 09:59:36,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 41 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:36,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-10-16 09:59:36,461 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 20 [2022-10-16 09:59:36,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:36,461 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-10-16 09:59:36,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-10-16 09:59:36,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 09:59:36,465 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:36,466 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:36,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 09:59:36,466 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:36,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:36,467 INFO L85 PathProgramCache]: Analyzing trace with hash 237832474, now seen corresponding path program 1 times [2022-10-16 09:59:36,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:36,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46297396] [2022-10-16 09:59:36,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:36,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 09:59:36,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:36,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46297396] [2022-10-16 09:59:36,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46297396] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:36,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:59:36,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:59:36,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069660952] [2022-10-16 09:59:36,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:36,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:59:36,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:59:36,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:59:36,608 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:36,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:36,638 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-10-16 09:59:36,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:59:36,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 09:59:36,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:36,641 INFO L225 Difference]: With dead ends: 45 [2022-10-16 09:59:36,641 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 09:59:36,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 09:59:36,642 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 5 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:36,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 88 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:36,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 09:59:36,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-10-16 09:59:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 40 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:36,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-10-16 09:59:36,659 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 24 [2022-10-16 09:59:36,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:36,659 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-10-16 09:59:36,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:36,663 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-10-16 09:59:36,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 09:59:36,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:36,664 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:36,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 09:59:36,665 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:36,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:36,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1217127796, now seen corresponding path program 1 times [2022-10-16 09:59:36,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:36,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304012515] [2022-10-16 09:59:36,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:36,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:36,900 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 09:59:36,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:36,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304012515] [2022-10-16 09:59:36,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304012515] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:59:36,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882136906] [2022-10-16 09:59:36,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:36,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:36,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:59:36,905 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 09:59:36,912 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 09:59:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:36,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 09:59:36,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:59:37,051 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 09:59:37,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:59:37,149 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 09:59:37,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882136906] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:59:37,150 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:59:37,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-16 09:59:37,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827987365] [2022-10-16 09:59:37,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:59:37,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 09:59:37,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:37,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 09:59:37,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-16 09:59:37,152 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:37,280 INFO L93 Difference]: Finished difference Result 89 states and 100 transitions. [2022-10-16 09:59:37,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 09:59:37,280 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 09:59:37,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:37,281 INFO L225 Difference]: With dead ends: 89 [2022-10-16 09:59:37,282 INFO L226 Difference]: Without dead ends: 60 [2022-10-16 09:59:37,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-10-16 09:59:37,283 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 37 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:37,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 150 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:59:37,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-16 09:59:37,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-10-16 09:59:37,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 56 states have internal predecessors, (59), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:37,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2022-10-16 09:59:37,294 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 25 [2022-10-16 09:59:37,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:37,294 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2022-10-16 09:59:37,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:37,295 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2022-10-16 09:59:37,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 09:59:37,296 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:37,296 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:37,339 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 09:59:37,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:37,511 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:37,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:37,512 INFO L85 PathProgramCache]: Analyzing trace with hash -239185796, now seen corresponding path program 2 times [2022-10-16 09:59:37,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:37,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094200440] [2022-10-16 09:59:37,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:37,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:37,832 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 09:59:37,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:37,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094200440] [2022-10-16 09:59:37,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094200440] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:59:37,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840877649] [2022-10-16 09:59:37,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 09:59:37,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:37,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:59:37,835 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 09:59:37,854 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 09:59:37,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 09:59:37,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:59:37,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 09:59:37,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:59:38,031 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 09:59:38,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:59:38,332 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 09:59:38,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840877649] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:59:38,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:59:38,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-16 09:59:38,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073523202] [2022-10-16 09:59:38,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:59:38,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 09:59:38,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:38,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 09:59:38,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 09:59:38,335 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:38,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:38,669 INFO L93 Difference]: Finished difference Result 121 states and 136 transitions. [2022-10-16 09:59:38,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 09:59:38,670 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 09:59:38,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:38,671 INFO L225 Difference]: With dead ends: 121 [2022-10-16 09:59:38,671 INFO L226 Difference]: Without dead ends: 92 [2022-10-16 09:59:38,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 09:59:38,674 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 85 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:38,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 268 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 09:59:38,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-10-16 09:59:38,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-10-16 09:59:38,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 83 states have (on average 1.0963855421686748) internal successors, (91), 88 states have internal predecessors, (91), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 96 transitions. [2022-10-16 09:59:38,684 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 96 transitions. Word has length 41 [2022-10-16 09:59:38,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:38,685 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 96 transitions. [2022-10-16 09:59:38,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:38,685 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2022-10-16 09:59:38,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 09:59:38,687 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:38,688 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:38,721 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 09:59:38,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:38,904 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:38,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:38,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1488264284, now seen corresponding path program 3 times [2022-10-16 09:59:38,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:38,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968290431] [2022-10-16 09:59:38,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:38,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:39,926 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 09:59:39,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:39,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968290431] [2022-10-16 09:59:39,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968290431] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:59:39,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397939037] [2022-10-16 09:59:39,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 09:59:39,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:39,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:59:39,929 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 09:59:39,930 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 09:59:40,003 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 09:59:40,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 09:59:40,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 09:59:40,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:59:40,110 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 09:59:40,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:59:40,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397939037] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:40,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 09:59:40,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2022-10-16 09:59:40,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967597298] [2022-10-16 09:59:40,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:40,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 09:59:40,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:40,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 09:59:40,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 09:59:40,117 INFO L87 Difference]: Start difference. First operand 92 states and 96 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:40,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:40,182 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2022-10-16 09:59:40,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 09:59:40,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-10-16 09:59:40,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:40,184 INFO L225 Difference]: With dead ends: 92 [2022-10-16 09:59:40,184 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 09:59:40,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=309, Invalid=1173, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 09:59:40,189 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:40,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 139 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:40,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 09:59:40,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2022-10-16 09:59:40,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.0759493670886076) internal successors, (85), 82 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:40,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 89 transitions. [2022-10-16 09:59:40,208 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 89 transitions. Word has length 73 [2022-10-16 09:59:40,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:40,209 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 89 transitions. [2022-10-16 09:59:40,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:40,209 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 89 transitions. [2022-10-16 09:59:40,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-16 09:59:40,215 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:40,215 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:40,248 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 09:59:40,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:40,435 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:40,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:40,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1324965036, now seen corresponding path program 1 times [2022-10-16 09:59:40,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:40,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974596230] [2022-10-16 09:59:40,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:40,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:40,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 09:59:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:40,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 09:59:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-10-16 09:59:40,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:40,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974596230] [2022-10-16 09:59:40,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974596230] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:59:40,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887267020] [2022-10-16 09:59:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:40,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:40,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:59:40,636 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 09:59:40,660 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 09:59:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:40,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 09:59:40,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:59:40,758 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2022-10-16 09:59:40,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:59:40,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887267020] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:40,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 09:59:40,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 09:59:40,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124929839] [2022-10-16 09:59:40,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:40,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 09:59:40,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:40,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 09:59:40,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 09:59:40,761 INFO L87 Difference]: Start difference. First operand 86 states and 89 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:40,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:40,779 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2022-10-16 09:59:40,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 09:59:40,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2022-10-16 09:59:40,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:40,781 INFO L225 Difference]: With dead ends: 95 [2022-10-16 09:59:40,781 INFO L226 Difference]: Without dead ends: 94 [2022-10-16 09:59:40,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 09:59:40,783 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 7 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:40,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 48 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:40,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-16 09:59:40,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2022-10-16 09:59:40,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.0740740740740742) internal successors, (87), 84 states have internal predecessors, (87), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:40,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 91 transitions. [2022-10-16 09:59:40,793 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 91 transitions. Word has length 87 [2022-10-16 09:59:40,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:40,798 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 91 transitions. [2022-10-16 09:59:40,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:40,798 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 91 transitions. [2022-10-16 09:59:40,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-10-16 09:59:40,803 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:40,803 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:40,843 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 09:59:41,017 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 09:59:41,018 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:41,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:41,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1875756779, now seen corresponding path program 1 times [2022-10-16 09:59:41,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:41,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022263036] [2022-10-16 09:59:41,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:41,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:41,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 09:59:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:41,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 09:59:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-10-16 09:59:41,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:41,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022263036] [2022-10-16 09:59:41,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022263036] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:59:41,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048488723] [2022-10-16 09:59:41,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:41,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:41,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:59:41,183 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 09:59:41,203 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 09:59:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:41,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 09:59:41,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:59:41,312 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2022-10-16 09:59:41,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 09:59:41,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048488723] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:41,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 09:59:41,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 09:59:41,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22984579] [2022-10-16 09:59:41,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:41,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 09:59:41,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:41,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 09:59:41,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 09:59:41,315 INFO L87 Difference]: Start difference. First operand 88 states and 91 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:41,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:41,331 INFO L93 Difference]: Finished difference Result 95 states and 98 transitions. [2022-10-16 09:59:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 09:59:41,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2022-10-16 09:59:41,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:41,333 INFO L225 Difference]: With dead ends: 95 [2022-10-16 09:59:41,334 INFO L226 Difference]: Without dead ends: 94 [2022-10-16 09:59:41,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 09:59:41,335 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:41,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 49 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:41,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-16 09:59:41,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 89. [2022-10-16 09:59:41,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 82 states have (on average 1.0731707317073171) internal successors, (88), 85 states have internal predecessors, (88), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:41,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2022-10-16 09:59:41,344 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 88 [2022-10-16 09:59:41,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:41,345 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2022-10-16 09:59:41,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:41,346 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2022-10-16 09:59:41,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 09:59:41,347 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:41,347 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:41,388 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 09:59:41,561 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 09:59:41,561 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:41,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:41,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1284001847, now seen corresponding path program 1 times [2022-10-16 09:59:41,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:41,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436340369] [2022-10-16 09:59:41,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:41,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:41,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 09:59:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:41,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 09:59:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:41,764 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2022-10-16 09:59:41,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:41,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436340369] [2022-10-16 09:59:41,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436340369] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:59:41,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658258268] [2022-10-16 09:59:41,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:41,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:41,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:59:41,767 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 09:59:41,786 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 09:59:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:41,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 09:59:41,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:59:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 09:59:42,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:59:43,513 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-16 09:59:43,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658258268] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:59:43,514 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:59:43,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2022-10-16 09:59:43,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132263692] [2022-10-16 09:59:43,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:59:43,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 09:59:43,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:43,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 09:59:43,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 09:59:43,523 INFO L87 Difference]: Start difference. First operand 89 states and 92 transitions. Second operand has 67 states, 67 states have (on average 2.388059701492537) internal successors, (160), 67 states have internal predecessors, (160), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 09:59:44,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:44,575 INFO L93 Difference]: Finished difference Result 186 states and 210 transitions. [2022-10-16 09:59:44,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-10-16 09:59:44,576 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.388059701492537) internal successors, (160), 67 states have internal predecessors, (160), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 90 [2022-10-16 09:59:44,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:44,578 INFO L225 Difference]: With dead ends: 186 [2022-10-16 09:59:44,578 INFO L226 Difference]: Without dead ends: 160 [2022-10-16 09:59:44,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2022-10-16 09:59:44,585 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 207 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:44,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 306 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 09:59:44,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-10-16 09:59:44,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2022-10-16 09:59:44,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 150 states have (on average 1.04) internal successors, (156), 153 states have internal predecessors, (156), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:44,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 160 transitions. [2022-10-16 09:59:44,616 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 160 transitions. Word has length 90 [2022-10-16 09:59:44,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:44,617 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 160 transitions. [2022-10-16 09:59:44,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.388059701492537) internal successors, (160), 67 states have internal predecessors, (160), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 09:59:44,618 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 160 transitions. [2022-10-16 09:59:44,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-10-16 09:59:44,628 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:44,628 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:44,667 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 09:59:44,829 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 09:59:44,830 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:44,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:44,831 INFO L85 PathProgramCache]: Analyzing trace with hash 700493431, now seen corresponding path program 2 times [2022-10-16 09:59:44,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:44,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930562629] [2022-10-16 09:59:44,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:44,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:45,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-16 09:59:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-16 09:59:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1928 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1928 trivial. 0 not checked. [2022-10-16 09:59:45,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:45,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930562629] [2022-10-16 09:59:45,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930562629] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:45,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:59:45,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:59:45,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089545180] [2022-10-16 09:59:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:45,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:59:45,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:45,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:59:45,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:59:45,101 INFO L87 Difference]: Start difference. First operand 157 states and 160 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:45,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:45,132 INFO L93 Difference]: Finished difference Result 162 states and 165 transitions. [2022-10-16 09:59:45,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:59:45,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 162 [2022-10-16 09:59:45,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:45,134 INFO L225 Difference]: With dead ends: 162 [2022-10-16 09:59:45,134 INFO L226 Difference]: Without dead ends: 160 [2022-10-16 09:59:45,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 09:59:45,136 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:45,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 69 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:45,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-10-16 09:59:45,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-10-16 09:59:45,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 153 states have (on average 1.0392156862745099) internal successors, (159), 156 states have internal predecessors, (159), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:45,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 163 transitions. [2022-10-16 09:59:45,147 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 163 transitions. Word has length 162 [2022-10-16 09:59:45,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:45,147 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 163 transitions. [2022-10-16 09:59:45,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:45,148 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 163 transitions. [2022-10-16 09:59:45,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-10-16 09:59:45,150 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:45,150 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:45,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 09:59:45,150 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:45,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:45,151 INFO L85 PathProgramCache]: Analyzing trace with hash -846218158, now seen corresponding path program 1 times [2022-10-16 09:59:45,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:45,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155058349] [2022-10-16 09:59:45,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:45,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:45,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-16 09:59:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:45,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-16 09:59:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:45,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1930 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1929 trivial. 0 not checked. [2022-10-16 09:59:45,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:45,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155058349] [2022-10-16 09:59:45,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155058349] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:45,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:59:45,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 09:59:45,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382133626] [2022-10-16 09:59:45,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:45,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 09:59:45,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:45,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 09:59:45,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 09:59:45,336 INFO L87 Difference]: Start difference. First operand 160 states and 163 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:45,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:45,350 INFO L93 Difference]: Finished difference Result 160 states and 163 transitions. [2022-10-16 09:59:45,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 09:59:45,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 165 [2022-10-16 09:59:45,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:45,352 INFO L225 Difference]: With dead ends: 160 [2022-10-16 09:59:45,352 INFO L226 Difference]: Without dead ends: 159 [2022-10-16 09:59:45,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 09:59:45,354 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 7 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:45,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 44 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:45,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-10-16 09:59:45,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2022-10-16 09:59:45,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 153 states have (on average 1.0326797385620916) internal successors, (158), 155 states have internal predecessors, (158), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:45,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 162 transitions. [2022-10-16 09:59:45,363 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 162 transitions. Word has length 165 [2022-10-16 09:59:45,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:45,363 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 162 transitions. [2022-10-16 09:59:45,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:45,363 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 162 transitions. [2022-10-16 09:59:45,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 09:59:45,366 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:45,366 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:45,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 09:59:45,366 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:45,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:45,367 INFO L85 PathProgramCache]: Analyzing trace with hash -462959057, now seen corresponding path program 1 times [2022-10-16 09:59:45,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:45,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976149068] [2022-10-16 09:59:45,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:45,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:45,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-16 09:59:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:45,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-16 09:59:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:45,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1931 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1928 trivial. 0 not checked. [2022-10-16 09:59:45,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:45,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976149068] [2022-10-16 09:59:45,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976149068] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 09:59:45,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912122441] [2022-10-16 09:59:45,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:45,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 09:59:45,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 09:59:45,652 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 09:59:45,674 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 09:59:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:45,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 09:59:45,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 09:59:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1931 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 09:59:47,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 09:59:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 1931 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-16 09:59:51,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912122441] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 09:59:51,365 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 09:59:51,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 65, 65] total 131 [2022-10-16 09:59:51,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102499268] [2022-10-16 09:59:51,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 09:59:51,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2022-10-16 09:59:51,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:51,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2022-10-16 09:59:51,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4166, Invalid=12864, Unknown=0, NotChecked=0, Total=17030 [2022-10-16 09:59:51,374 INFO L87 Difference]: Start difference. First operand 159 states and 162 transitions. Second operand has 131 states, 131 states have (on average 2.2519083969465647) internal successors, (295), 131 states have internal predecessors, (295), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 09:59:54,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:54,825 INFO L93 Difference]: Finished difference Result 327 states and 365 transitions. [2022-10-16 09:59:54,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-10-16 09:59:54,825 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 131 states have (on average 2.2519083969465647) internal successors, (295), 131 states have internal predecessors, (295), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 166 [2022-10-16 09:59:54,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:54,828 INFO L225 Difference]: With dead ends: 327 [2022-10-16 09:59:54,828 INFO L226 Difference]: Without dead ends: 295 [2022-10-16 09:59:54,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7657 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=10185, Invalid=27257, Unknown=0, NotChecked=0, Total=37442 [2022-10-16 09:59:54,838 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 556 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:54,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 198 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 09:59:54,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-10-16 09:59:54,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 290. [2022-10-16 09:59:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 284 states have (on average 1.017605633802817) internal successors, (289), 286 states have internal predecessors, (289), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 293 transitions. [2022-10-16 09:59:54,851 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 293 transitions. Word has length 166 [2022-10-16 09:59:54,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:54,851 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 293 transitions. [2022-10-16 09:59:54,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 131 states have (on average 2.2519083969465647) internal successors, (295), 131 states have internal predecessors, (295), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 09:59:54,852 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 293 transitions. [2022-10-16 09:59:54,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-10-16 09:59:54,856 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:54,856 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:54,892 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 09:59:55,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 09:59:55,073 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:55,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:55,074 INFO L85 PathProgramCache]: Analyzing trace with hash -2014124207, now seen corresponding path program 1 times [2022-10-16 09:59:55,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:55,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712328745] [2022-10-16 09:59:55,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:55,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:55,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 09:59:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:55,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-16 09:59:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 7917 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7913 trivial. 0 not checked. [2022-10-16 09:59:55,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:55,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712328745] [2022-10-16 09:59:55,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712328745] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:55,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:59:55,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:59:55,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054386100] [2022-10-16 09:59:55,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:55,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:59:55,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:55,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:59:55,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:59:55,476 INFO L87 Difference]: Start difference. First operand 290 states and 293 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:55,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:55,508 INFO L93 Difference]: Finished difference Result 290 states and 293 transitions. [2022-10-16 09:59:55,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:59:55,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 296 [2022-10-16 09:59:55,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:55,511 INFO L225 Difference]: With dead ends: 290 [2022-10-16 09:59:55,511 INFO L226 Difference]: Without dead ends: 289 [2022-10-16 09:59:55,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 09:59:55,513 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:55,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 60 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:55,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-10-16 09:59:55,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2022-10-16 09:59:55,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 284 states have (on average 1.0140845070422535) internal successors, (288), 285 states have internal predecessors, (288), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 09:59:55,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 292 transitions. [2022-10-16 09:59:55,534 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 292 transitions. Word has length 296 [2022-10-16 09:59:55,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:55,535 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 292 transitions. [2022-10-16 09:59:55,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:55,536 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 292 transitions. [2022-10-16 09:59:55,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-10-16 09:59:55,546 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 09:59:55,547 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:55,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 09:59:55,549 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-10-16 09:59:55,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 09:59:55,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1986659094, now seen corresponding path program 1 times [2022-10-16 09:59:55,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 09:59:55,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267891129] [2022-10-16 09:59:55,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 09:59:55,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 09:59:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:55,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-10-16 09:59:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:56,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-10-16 09:59:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 09:59:56,014 INFO L134 CoverageAnalysis]: Checked inductivity of 7918 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7915 trivial. 0 not checked. [2022-10-16 09:59:56,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 09:59:56,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267891129] [2022-10-16 09:59:56,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267891129] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 09:59:56,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 09:59:56,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 09:59:56,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493157145] [2022-10-16 09:59:56,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 09:59:56,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 09:59:56,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 09:59:56,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 09:59:56,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 09:59:56,017 INFO L87 Difference]: Start difference. First operand 289 states and 292 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:56,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 09:59:56,039 INFO L93 Difference]: Finished difference Result 289 states and 292 transitions. [2022-10-16 09:59:56,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 09:59:56,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 297 [2022-10-16 09:59:56,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 09:59:56,040 INFO L225 Difference]: With dead ends: 289 [2022-10-16 09:59:56,040 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 09:59:56,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 09:59:56,044 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 09:59:56,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 60 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 09:59:56,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 09:59:56,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 09:59:56,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 09:59:56,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 09:59:56,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 297 [2022-10-16 09:59:56,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 09:59:56,046 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 09:59:56,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 09:59:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 09:59:56,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 09:59:56,049 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-10-16 09:59:56,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-10-16 09:59:56,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-10-16 09:59:56,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-10-16 09:59:56,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-10-16 09:59:56,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-10-16 09:59:56,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-10-16 09:59:56,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-10-16 09:59:56,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 09:59:56,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 09:59:56,149 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-10-16 09:59:56,150 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 54) no Hoare annotation was computed. [2022-10-16 09:59:56,150 INFO L899 garLoopResultBuilder]: For program point L52-2(lines 52 54) no Hoare annotation was computed. [2022-10-16 09:59:56,150 INFO L895 garLoopResultBuilder]: At program point L44(line 44) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~1#1|) [2022-10-16 09:59:56,150 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-10-16 09:59:56,151 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 09:59:56,151 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-10-16 09:59:56,151 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 09:59:56,151 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-10-16 09:59:56,151 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 09:59:56,151 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-10-16 09:59:56,152 INFO L899 garLoopResultBuilder]: For program point L37-2(lines 37 39) no Hoare annotation was computed. [2022-10-16 09:59:56,152 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2022-10-16 09:59:56,152 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2022-10-16 09:59:56,152 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-10-16 09:59:56,152 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 09:59:56,152 INFO L895 garLoopResultBuilder]: At program point L37-5(lines 37 39) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~1#1| 0) (<= 1 |ULTIMATE.start_main_~i~1#1|)) [2022-10-16 09:59:56,154 INFO L895 garLoopResultBuilder]: At program point L37-6(lines 37 39) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~1#1|) [2022-10-16 09:59:56,154 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-10-16 09:59:56,154 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~1#1|) [2022-10-16 09:59:56,154 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-10-16 09:59:56,155 INFO L899 garLoopResultBuilder]: For program point L46-2(lines 46 48) no Hoare annotation was computed. [2022-10-16 09:59:56,155 INFO L899 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2022-10-16 09:59:56,155 INFO L899 garLoopResultBuilder]: For program point L46-4(line 46) no Hoare annotation was computed. [2022-10-16 09:59:56,155 INFO L895 garLoopResultBuilder]: At program point L46-5(lines 46 48) the Hoare annotation is: (and (<= 0 (+ 2147483649 |ULTIMATE.start_main_~i~2#1|)) (<= 1 |ULTIMATE.start_main_~i~1#1|)) [2022-10-16 09:59:56,155 INFO L899 garLoopResultBuilder]: For program point L46-6(lines 46 48) no Hoare annotation was computed. [2022-10-16 09:59:56,156 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-10-16 09:59:56,157 INFO L902 garLoopResultBuilder]: At program point L55(lines 29 56) the Hoare annotation is: true [2022-10-16 09:59:56,157 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-10-16 09:59:56,157 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2022-10-16 09:59:56,157 INFO L899 garLoopResultBuilder]: For program point xorFINAL(lines 18 27) no Hoare annotation was computed. [2022-10-16 09:59:56,157 INFO L899 garLoopResultBuilder]: For program point L23-2(lines 23 25) no Hoare annotation was computed. [2022-10-16 09:59:56,158 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-10-16 09:59:56,158 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-10-16 09:59:56,160 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 25) the Hoare annotation is: (or (= xor_~i~0 1) (<= 2 xor_~i~0)) [2022-10-16 09:59:56,161 INFO L899 garLoopResultBuilder]: For program point L23-6(lines 23 25) no Hoare annotation was computed. [2022-10-16 09:59:56,161 INFO L902 garLoopResultBuilder]: At program point xorENTRY(lines 18 27) the Hoare annotation is: true [2022-10-16 09:59:56,161 INFO L899 garLoopResultBuilder]: For program point xorErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-10-16 09:59:56,161 INFO L899 garLoopResultBuilder]: For program point xorErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-10-16 09:59:56,161 INFO L899 garLoopResultBuilder]: For program point xorEXIT(lines 18 27) no Hoare annotation was computed. [2022-10-16 09:59:56,167 INFO L444 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 09:59:56,171 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 09:59:56,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 09:59:56 BoogieIcfgContainer [2022-10-16 09:59:56,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 09:59:56,191 INFO L158 Benchmark]: Toolchain (without parser) took 22911.93ms. Allocated memory was 157.3MB in the beginning and 327.2MB in the end (delta: 169.9MB). Free memory was 133.1MB in the beginning and 170.7MB in the end (delta: -37.6MB). Peak memory consumption was 134.6MB. Max. memory is 8.0GB. [2022-10-16 09:59:56,192 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 09:59:56,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.58ms. Allocated memory is still 157.3MB. Free memory was 132.9MB in the beginning and 122.5MB in the end (delta: 10.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-16 09:59:56,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.08ms. Allocated memory is still 157.3MB. Free memory was 122.5MB in the beginning and 120.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 09:59:56,194 INFO L158 Benchmark]: Boogie Preprocessor took 32.93ms. Allocated memory is still 157.3MB. Free memory was 120.8MB in the beginning and 119.6MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 09:59:56,194 INFO L158 Benchmark]: RCFGBuilder took 414.87ms. Allocated memory is still 157.3MB. Free memory was 119.4MB in the beginning and 106.4MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 09:59:56,195 INFO L158 Benchmark]: TraceAbstraction took 22152.80ms. Allocated memory was 157.3MB in the beginning and 327.2MB in the end (delta: 169.9MB). Free memory was 105.7MB in the beginning and 170.7MB in the end (delta: -64.9MB). Peak memory consumption was 106.3MB. Max. memory is 8.0GB. [2022-10-16 09:59:56,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 127.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 251.58ms. Allocated memory is still 157.3MB. Free memory was 132.9MB in the beginning and 122.5MB in the end (delta: 10.4MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.08ms. Allocated memory is still 157.3MB. Free memory was 122.5MB in the beginning and 120.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.93ms. Allocated memory is still 157.3MB. Free memory was 120.8MB in the beginning and 119.6MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 414.87ms. Allocated memory is still 157.3MB. Free memory was 119.4MB in the beginning and 106.4MB in the end (delta: 13.0MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 22152.80ms. Allocated memory was 157.3MB in the beginning and 327.2MB in the end (delta: 169.9MB). Free memory was 105.7MB in the beginning and 170.7MB in the end (delta: -64.9MB). Peak memory consumption was 106.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 22.0s, OverallIterations: 17, TraceHistogramMax: 63, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 989 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 987 mSDsluCounter, 2011 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1533 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1145 IncrementalHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 478 mSDtfsCounter, 1145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1185 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 441 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10435 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=15, InterpolantAutomatonStates: 298, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 25 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 48 PreInvPairs, 123 NumberOfFragments, 34 HoareAnnotationTreeSize, 48 FomulaSimplifications, 582 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 2162 NumberOfCodeBlocks, 2106 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2465 ConstructedInterpolants, 0 QuantifiedInterpolants, 3771 SizeOfPredicates, 61 NumberOfNonLiveVariables, 2088 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 31 InterpolantComputations, 12 PerfectInterpolantSequences, 24441/29889 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 0 <= 2147483649 + i && 1 <= i - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: i == 1 || 2 <= i - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-16 09:59:56,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...