/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-examples/standard_strcpy_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:13:21,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:13:21,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:13:21,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:13:21,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:13:21,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:13:21,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:13:21,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:13:21,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:13:21,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:13:21,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:13:21,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-10-15 20:13:21,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:13:21,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:13:21,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:13:21,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 20:13:21,798 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:13:21,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:13:21,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:13:21,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:13:21,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:13:21,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:13:21,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:13:21,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:13:21,803 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:13:21,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:13:21,804 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:13:21,805 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:13:21,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:13:21,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:13:21,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:13:21,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:13:21,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:13:21,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:13:21,806 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:13:21,806 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:13:21,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:13:21,807 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:13:21,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:13:21,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:13:21,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:13:21,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:13:21,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:13:21,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:13:21,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:13:21,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:13:21,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:13:21,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:13:21,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:13:21,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:13:22,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:13:22,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:13:22,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:13:22,209 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:13:22,209 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:13:22,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_strcpy_ground-2.i [2022-10-15 20:13:22,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bd3bf73f/676aeee60f9a4b52b17c413aa86fd57e/FLAGb62e4a474 [2022-10-15 20:13:22,910 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:13:22,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_strcpy_ground-2.i [2022-10-15 20:13:22,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bd3bf73f/676aeee60f9a4b52b17c413aa86fd57e/FLAGb62e4a474 [2022-10-15 20:13:23,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bd3bf73f/676aeee60f9a4b52b17c413aa86fd57e [2022-10-15 20:13:23,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:13:23,248 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:13:23,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:13:23,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:13:23,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:13:23,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab3e665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23, skipping insertion in model container [2022-10-15 20:13:23,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:13:23,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:13:23,435 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-examples/standard_strcpy_ground-2.i[817,830] [2022-10-15 20:13:23,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:13:23,467 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:13:23,486 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-examples/standard_strcpy_ground-2.i[817,830] [2022-10-15 20:13:23,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:13:23,535 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:13:23,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23 WrapperNode [2022-10-15 20:13:23,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:13:23,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:13:23,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:13:23,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:13:23,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,594 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-10-15 20:13:23,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:13:23,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:13:23,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:13:23,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:13:23,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,656 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:13:23,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:13:23,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:13:23,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:13:23,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (1/1) ... [2022-10-15 20:13:23,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:13:23,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:23,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 20:13:23,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 20:13:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:13:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:13:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:13:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:13:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:13:23,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:13:23,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:13:23,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:13:23,900 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:13:23,903 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:13:24,130 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:13:24,146 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:13:24,150 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 20:13:24,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:13:24 BoogieIcfgContainer [2022-10-15 20:13:24,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:13:24,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:13:24,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:13:24,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:13:24,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:13:23" (1/3) ... [2022-10-15 20:13:24,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f2f33f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:13:24, skipping insertion in model container [2022-10-15 20:13:24,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:23" (2/3) ... [2022-10-15 20:13:24,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f2f33f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:13:24, skipping insertion in model container [2022-10-15 20:13:24,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:13:24" (3/3) ... [2022-10-15 20:13:24,175 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_strcpy_ground-2.i [2022-10-15 20:13:24,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:13:24,214 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-15 20:13:24,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:13:24,285 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;@68ca980e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:13:24,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-15 20:13:24,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:24,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 20:13:24,304 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:24,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 20:13:24,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:24,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:24,312 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-15 20:13:24,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:24,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854070177] [2022-10-15 20:13:24,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:24,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:24,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:24,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854070177] [2022-10-15 20:13:24,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854070177] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:24,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:24,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:24,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951975506] [2022-10-15 20:13:24,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:24,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:24,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:24,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:24,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:24,720 INFO L87 Difference]: Start difference. First operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 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) [2022-10-15 20:13:24,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:24,842 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2022-10-15 20:13:24,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:24,845 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 [2022-10-15 20:13:24,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:24,854 INFO L225 Difference]: With dead ends: 74 [2022-10-15 20:13:24,855 INFO L226 Difference]: Without dead ends: 41 [2022-10-15 20:13:24,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:24,863 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 21 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:24,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 56 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:24,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-15 20:13:24,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 32. [2022-10-15 20:13:24,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:24,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-10-15 20:13:24,904 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 5 [2022-10-15 20:13:24,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:24,904 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-10-15 20:13:24,905 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) [2022-10-15 20:13:24,905 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-10-15 20:13:24,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:13:24,906 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:24,906 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-15 20:13:24,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:13:24,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:24,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:24,908 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-15 20:13:24,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:24,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436982977] [2022-10-15 20:13:24,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:24,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:24,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:13:24,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:24,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436982977] [2022-10-15 20:13:24,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436982977] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:24,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:24,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:24,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322683946] [2022-10-15 20:13:24,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:24,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:24,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:24,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:24,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:24,998 INFO L87 Difference]: Start difference. First operand 32 states and 35 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) [2022-10-15 20:13:25,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:25,042 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-10-15 20:13:25,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:25,043 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 [2022-10-15 20:13:25,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:25,044 INFO L225 Difference]: With dead ends: 41 [2022-10-15 20:13:25,044 INFO L226 Difference]: Without dead ends: 40 [2022-10-15 20:13:25,045 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 [2022-10-15 20:13:25,047 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:25,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 39 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:25,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-15 20:13:25,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2022-10-15 20:13:25,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 30 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:25,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2022-10-15 20:13:25,055 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 9 [2022-10-15 20:13:25,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:25,056 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2022-10-15 20:13:25,056 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) [2022-10-15 20:13:25,056 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2022-10-15 20:13:25,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:13:25,057 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:25,057 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:13:25,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:13:25,058 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:25,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:25,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-15 20:13:25,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:25,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72469102] [2022-10-15 20:13:25,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:25,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:25,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:25,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72469102] [2022-10-15 20:13:25,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72469102] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:25,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337891468] [2022-10-15 20:13:25,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:25,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:25,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:25,254 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:13:25,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:13:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:25,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:13:25,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:25,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:13:25,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:25,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337891468] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:25,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:25,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:13:25,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254166689] [2022-10-15 20:13:25,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:25,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:13:25,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:25,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:13:25,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:13:25,418 INFO L87 Difference]: Start difference. First operand 31 states and 34 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) [2022-10-15 20:13:25,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:25,496 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-10-15 20:13:25,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:13:25,497 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 [2022-10-15 20:13:25,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:25,498 INFO L225 Difference]: With dead ends: 40 [2022-10-15 20:13:25,499 INFO L226 Difference]: Without dead ends: 38 [2022-10-15 20:13:25,499 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 [2022-10-15 20:13:25,501 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 34 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:25,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 71 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:25,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-15 20:13:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 25. [2022-10-15 20:13:25,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:25,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-10-15 20:13:25,509 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 10 [2022-10-15 20:13:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:25,510 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-10-15 20:13:25,510 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) [2022-10-15 20:13:25,510 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-10-15 20:13:25,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 20:13:25,511 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:25,511 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:25,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:25,725 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 [2022-10-15 20:13:25,726 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:25,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:25,728 INFO L85 PathProgramCache]: Analyzing trace with hash -619497760, now seen corresponding path program 1 times [2022-10-15 20:13:25,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:25,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028737994] [2022-10-15 20:13:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:25,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:25,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:25,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:25,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028737994] [2022-10-15 20:13:25,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028737994] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:25,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134320218] [2022-10-15 20:13:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:25,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:25,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:25,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:13:25,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:13:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:25,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:13:25,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:26,006 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:26,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:26,044 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 20:13:26,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134320218] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:26,045 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:26,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 20:13:26,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322281406] [2022-10-15 20:13:26,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:26,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 20:13:26,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:26,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 20:13:26,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:13:26,048 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:26,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:26,154 INFO L93 Difference]: Finished difference Result 100 states and 113 transitions. [2022-10-15 20:13:26,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 20:13:26,155 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-15 20:13:26,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:26,157 INFO L225 Difference]: With dead ends: 100 [2022-10-15 20:13:26,157 INFO L226 Difference]: Without dead ends: 82 [2022-10-15 20:13:26,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:13:26,160 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 91 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:26,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 81 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:26,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-15 20:13:26,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 45. [2022-10-15 20:13:26,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 44 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:26,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-10-15 20:13:26,179 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 15 [2022-10-15 20:13:26,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:26,179 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-10-15 20:13:26,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 10 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:26,183 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-10-15 20:13:26,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 20:13:26,184 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:26,184 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:26,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:26,399 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 [2022-10-15 20:13:26,400 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:26,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:26,402 INFO L85 PathProgramCache]: Analyzing trace with hash 65792521, now seen corresponding path program 1 times [2022-10-15 20:13:26,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:26,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970744720] [2022-10-15 20:13:26,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:26,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:26,556 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:13:26,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:26,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970744720] [2022-10-15 20:13:26,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970744720] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:26,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:26,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:13:26,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71637230] [2022-10-15 20:13:26,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:26,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:26,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:26,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:26,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:26,560 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:26,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:26,630 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2022-10-15 20:13:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:26,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-15 20:13:26,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:26,636 INFO L225 Difference]: With dead ends: 55 [2022-10-15 20:13:26,636 INFO L226 Difference]: Without dead ends: 45 [2022-10-15 20:13:26,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:26,641 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:26,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 36 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:13:26,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-15 20:13:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-10-15 20:13:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 44 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:26,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2022-10-15 20:13:26,662 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 24 [2022-10-15 20:13:26,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:26,663 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2022-10-15 20:13:26,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:26,664 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-10-15 20:13:26,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-15 20:13:26,666 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:26,666 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:26,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 20:13:26,667 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:26,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:26,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1666965360, now seen corresponding path program 1 times [2022-10-15 20:13:26,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:26,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829502992] [2022-10-15 20:13:26,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:26,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-15 20:13:26,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:26,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829502992] [2022-10-15 20:13:26,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829502992] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:26,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:13:26,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:13:26,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295159819] [2022-10-15 20:13:26,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:26,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:26,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:26,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:13:26,797 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:26,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:26,822 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-10-15 20:13:26,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:26,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 28 [2022-10-15 20:13:26,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:26,824 INFO L225 Difference]: With dead ends: 53 [2022-10-15 20:13:26,825 INFO L226 Difference]: Without dead ends: 51 [2022-10-15 20:13:26,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:13:26,827 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:26,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 53 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:26,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-15 20:13:26,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-10-15 20:13:26,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 50 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-10-15 20:13:26,837 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 28 [2022-10-15 20:13:26,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:26,838 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-10-15 20:13:26,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:26,839 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-10-15 20:13:26,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-15 20:13:26,840 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:26,840 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:26,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 20:13:26,841 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:26,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:26,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2062447867, now seen corresponding path program 1 times [2022-10-15 20:13:26,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:26,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966890679] [2022-10-15 20:13:26,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:26,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:27,000 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:13:27,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:27,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966890679] [2022-10-15 20:13:27,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966890679] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:27,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663903531] [2022-10-15 20:13:27,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:27,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:27,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:27,003 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:13:27,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 20:13:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:27,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:13:27,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:13:27,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:27,277 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-15 20:13:27,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663903531] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:27,278 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:27,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2022-10-15 20:13:27,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212942435] [2022-10-15 20:13:27,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:27,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-15 20:13:27,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:27,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-15 20:13:27,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2022-10-15 20:13:27,283 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:27,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:27,573 INFO L93 Difference]: Finished difference Result 218 states and 239 transitions. [2022-10-15 20:13:27,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-15 20:13:27,574 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 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 34 [2022-10-15 20:13:27,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:27,576 INFO L225 Difference]: With dead ends: 218 [2022-10-15 20:13:27,576 INFO L226 Difference]: Without dead ends: 174 [2022-10-15 20:13:27,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2022-10-15 20:13:27,578 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 226 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:27,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 124 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:13:27,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-10-15 20:13:27,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 83. [2022-10-15 20:13:27,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 80 states have (on average 1.1375) internal successors, (91), 82 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2022-10-15 20:13:27,592 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 34 [2022-10-15 20:13:27,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:27,592 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2022-10-15 20:13:27,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:27,593 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2022-10-15 20:13:27,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 20:13:27,595 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:27,595 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:27,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:27,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:27,809 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:27,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:27,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1702370236, now seen corresponding path program 2 times [2022-10-15 20:13:27,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:27,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277989174] [2022-10-15 20:13:27,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:27,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:27,974 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-15 20:13:27,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:27,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277989174] [2022-10-15 20:13:27,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277989174] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:27,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903404846] [2022-10-15 20:13:27,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:13:27,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:27,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:27,992 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:13:28,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 20:13:28,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:13:28,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:28,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 20:13:28,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:28,267 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-15 20:13:28,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-10-15 20:13:28,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903404846] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:28,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:28,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 36 [2022-10-15 20:13:28,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845408868] [2022-10-15 20:13:28,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:28,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-15 20:13:28,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:28,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-15 20:13:28,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=978, Unknown=0, NotChecked=0, Total=1260 [2022-10-15 20:13:28,600 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand has 36 states, 36 states have (on average 2.75) internal successors, (99), 36 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:30,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:30,629 INFO L93 Difference]: Finished difference Result 508 states and 562 transitions. [2022-10-15 20:13:30,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-10-15 20:13:30,630 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.75) internal successors, (99), 36 states have internal predecessors, (99), 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 54 [2022-10-15 20:13:30,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:30,634 INFO L225 Difference]: With dead ends: 508 [2022-10-15 20:13:30,634 INFO L226 Difference]: Without dead ends: 456 [2022-10-15 20:13:30,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4702 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2649, Invalid=11871, Unknown=0, NotChecked=0, Total=14520 [2022-10-15 20:13:30,643 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1321 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:30,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 156 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:13:30,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-10-15 20:13:30,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 165. [2022-10-15 20:13:30,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 162 states have (on average 1.123456790123457) internal successors, (182), 164 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:30,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 182 transitions. [2022-10-15 20:13:30,666 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 182 transitions. Word has length 54 [2022-10-15 20:13:30,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:30,667 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 182 transitions. [2022-10-15 20:13:30,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.75) internal successors, (99), 36 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:30,667 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 182 transitions. [2022-10-15 20:13:30,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-15 20:13:30,671 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:30,671 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:30,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:30,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:30,885 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:30,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:30,886 INFO L85 PathProgramCache]: Analyzing trace with hash -415244289, now seen corresponding path program 1 times [2022-10-15 20:13:30,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:30,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733442900] [2022-10-15 20:13:30,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:30,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-15 20:13:32,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:32,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733442900] [2022-10-15 20:13:32,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733442900] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:32,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594703839] [2022-10-15 20:13:32,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:32,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:32,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:32,020 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:13:32,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 20:13:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:32,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-15 20:13:32,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:32,261 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-15 20:13:32,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-15 20:13:33,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594703839] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:33,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:33,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-10-15 20:13:33,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810284630] [2022-10-15 20:13:33,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:33,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-10-15 20:13:33,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:33,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-10-15 20:13:33,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-10-15 20:13:33,136 INFO L87 Difference]: Start difference. First operand 165 states and 182 transitions. Second operand has 66 states, 66 states have (on average 2.1818181818181817) internal successors, (144), 66 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:34,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:34,444 INFO L93 Difference]: Finished difference Result 977 states and 1057 transitions. [2022-10-15 20:13:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-10-15 20:13:34,445 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.1818181818181817) internal successors, (144), 66 states have internal predecessors, (144), 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 87 [2022-10-15 20:13:34,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:34,450 INFO L225 Difference]: With dead ends: 977 [2022-10-15 20:13:34,450 INFO L226 Difference]: Without dead ends: 875 [2022-10-15 20:13:34,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1991 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2595, Invalid=6525, Unknown=0, NotChecked=0, Total=9120 [2022-10-15 20:13:34,456 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1717 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:34,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 372 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:13:34,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2022-10-15 20:13:34,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 293. [2022-10-15 20:13:34,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 290 states have (on average 1.1241379310344828) internal successors, (326), 292 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:34,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 326 transitions. [2022-10-15 20:13:34,486 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 326 transitions. Word has length 87 [2022-10-15 20:13:34,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:34,487 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 326 transitions. [2022-10-15 20:13:34,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.1818181818181817) internal successors, (144), 66 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:34,487 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 326 transitions. [2022-10-15 20:13:34,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-10-15 20:13:34,490 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:34,490 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:34,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:34,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:34,705 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:34,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:34,706 INFO L85 PathProgramCache]: Analyzing trace with hash 915564479, now seen corresponding path program 2 times [2022-10-15 20:13:34,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:34,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872224753] [2022-10-15 20:13:34,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:34,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-15 20:13:37,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:37,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872224753] [2022-10-15 20:13:37,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872224753] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:37,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173970896] [2022-10-15 20:13:37,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:13:37,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:37,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:37,796 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:13:37,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 20:13:37,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:13:37,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:37,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-15 20:13:37,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:38,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-15 20:13:38,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:13:41,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-15 20:13:41,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173970896] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:13:41,810 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:13:41,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-15 20:13:41,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752727199] [2022-10-15 20:13:41,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:13:41,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-15 20:13:41,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:41,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-15 20:13:41,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-15 20:13:41,825 INFO L87 Difference]: Start difference. First operand 293 states and 326 transitions. Second operand has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:46,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:46,806 INFO L93 Difference]: Finished difference Result 1937 states and 2097 transitions. [2022-10-15 20:13:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-10-15 20:13:46,807 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 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 151 [2022-10-15 20:13:46,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:46,815 INFO L225 Difference]: With dead ends: 1937 [2022-10-15 20:13:46,815 INFO L226 Difference]: Without dead ends: 1771 [2022-10-15 20:13:46,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-15 20:13:46,825 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3527 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3527 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:46,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3527 Valid, 620 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 20:13:46,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2022-10-15 20:13:46,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 549. [2022-10-15 20:13:46,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 546 states have (on average 1.1245421245421245) internal successors, (614), 548 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:46,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 614 transitions. [2022-10-15 20:13:46,860 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 614 transitions. Word has length 151 [2022-10-15 20:13:46,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:46,861 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 614 transitions. [2022-10-15 20:13:46,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.0923076923076924) internal successors, (272), 130 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:46,861 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 614 transitions. [2022-10-15 20:13:46,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-10-15 20:13:46,866 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:46,866 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:46,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:47,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:47,082 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:47,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:47,084 INFO L85 PathProgramCache]: Analyzing trace with hash -321030337, now seen corresponding path program 3 times [2022-10-15 20:13:47,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:47,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634304234] [2022-10-15 20:13:47,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:47,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:13:57,042 INFO L134 CoverageAnalysis]: Checked inductivity of 7889 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-15 20:13:57,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:13:57,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634304234] [2022-10-15 20:13:57,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634304234] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:13:57,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106500280] [2022-10-15 20:13:57,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:13:57,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:57,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:13:57,045 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:13:57,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 20:13:57,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 20:13:57,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:13:57,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:13:57,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:13:57,328 INFO L134 CoverageAnalysis]: Checked inductivity of 7889 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7883 trivial. 0 not checked. [2022-10-15 20:13:57,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:13:57,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106500280] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:13:57,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:13:57,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [129] total 131 [2022-10-15 20:13:57,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628914789] [2022-10-15 20:13:57,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:13:57,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:13:57,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:13:57,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:13:57,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4228, Invalid=12802, Unknown=0, NotChecked=0, Total=17030 [2022-10-15 20:13:57,333 INFO L87 Difference]: Start difference. First operand 549 states and 614 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:57,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:13:57,423 INFO L93 Difference]: Finished difference Result 549 states and 614 transitions. [2022-10-15 20:13:57,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:13:57,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 279 [2022-10-15 20:13:57,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:13:57,428 INFO L225 Difference]: With dead ends: 549 [2022-10-15 20:13:57,428 INFO L226 Difference]: Without dead ends: 535 [2022-10-15 20:13:57,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4156 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=4232, Invalid=13060, Unknown=0, NotChecked=0, Total=17292 [2022-10-15 20:13:57,432 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:13:57,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 46 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:13:57,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2022-10-15 20:13:57,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2022-10-15 20:13:57,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 533 states have (on average 1.1219512195121952) internal successors, (598), 534 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:57,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 598 transitions. [2022-10-15 20:13:57,457 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 598 transitions. Word has length 279 [2022-10-15 20:13:57,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:13:57,459 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 598 transitions. [2022-10-15 20:13:57,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:13:57,459 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 598 transitions. [2022-10-15 20:13:57,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-10-15 20:13:57,464 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:13:57,465 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:13:57,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 20:13:57,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:13:57,680 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-15 20:13:57,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:13:57,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1943173912, now seen corresponding path program 3 times [2022-10-15 20:13:57,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:13:57,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820635704] [2022-10-15 20:13:57,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:13:57,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:13:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:14:06,945 INFO L134 CoverageAnalysis]: Checked inductivity of 7909 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-10-15 20:14:06,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:14:06,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820635704] [2022-10-15 20:14:06,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820635704] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:14:06,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516761762] [2022-10-15 20:14:06,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:14:06,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:14:06,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:14:06,947 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:14:06,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 20:14:07,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 20:14:07,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:14:07,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:14:07,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:14:07,385 INFO L134 CoverageAnalysis]: Checked inductivity of 7909 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 7893 trivial. 0 not checked. [2022-10-15 20:14:07,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:14:07,658 INFO L134 CoverageAnalysis]: Checked inductivity of 7909 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 7893 trivial. 0 not checked. [2022-10-15 20:14:07,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516761762] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:14:07,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:14:07,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 5, 5] total 133 [2022-10-15 20:14:07,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347631585] [2022-10-15 20:14:07,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:14:07,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 133 states [2022-10-15 20:14:07,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:14:07,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2022-10-15 20:14:07,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4361, Invalid=13195, Unknown=0, NotChecked=0, Total=17556 [2022-10-15 20:14:07,664 INFO L87 Difference]: Start difference. First operand 535 states and 598 transitions. Second operand has 133 states, 133 states have (on average 2.225563909774436) internal successors, (296), 133 states have internal predecessors, (296), 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)