/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:45:59,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:45:59,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:45:59,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:45:59,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:45:59,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:45:59,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:45:59,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:45:59,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:45:59,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:45:59,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:45:59,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:45:59,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:45:59,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:45:59,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:45:59,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:45:59,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:45:59,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:45:59,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:45:59,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:45:59,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:45:59,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:45:59,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:45:59,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:45:59,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:45:59,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:45:59,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:45:59,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:45:59,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:45:59,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:45:59,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:45:59,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:45:59,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:45:59,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:45:59,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:45:59,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:45:59,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:45:59,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:45:59,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:45:59,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:45:59,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:45:59,985 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 13:46:00,014 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:46:00,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:46:00,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:46:00,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:46:00,017 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:46:00,017 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:46:00,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:46:00,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:46:00,019 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:46:00,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:46:00,019 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:46:00,020 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:46:00,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:46:00,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:46:00,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:46:00,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:46:00,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:46:00,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:46:00,022 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:46:00,022 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:46:00,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:46:00,022 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:46:00,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:46:00,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:46:00,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:46:00,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:46:00,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:46:00,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:46:00,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:46:00,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:46:00,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:46:00,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:46:00,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:46:00,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:46:00,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:46:00,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:46:00,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:46:00,437 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:46:00,438 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:46:00,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2022-10-16 13:46:00,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed15a7a4f/06060b6fb99d4c9daaecfdcd625759f4/FLAG306ec64bb [2022-10-16 13:46:01,178 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:46:01,179 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2022-10-16 13:46:01,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed15a7a4f/06060b6fb99d4c9daaecfdcd625759f4/FLAG306ec64bb [2022-10-16 13:46:01,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed15a7a4f/06060b6fb99d4c9daaecfdcd625759f4 [2022-10-16 13:46:01,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:46:01,455 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:46:01,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:46:01,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:46:01,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:46:01,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:46:01" (1/1) ... [2022-10-16 13:46:01,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa7d872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:01, skipping insertion in model container [2022-10-16 13:46:01,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:46:01" (1/1) ... [2022-10-16 13:46:01,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:46:01,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:46:02,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:46:02,048 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:46:02,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:46:02,169 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:46:02,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02 WrapperNode [2022-10-16 13:46:02,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:46:02,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:46:02,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:46:02,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:46:02,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,235 INFO L138 Inliner]: procedures = 166, calls = 79, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 89 [2022-10-16 13:46:02,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:46:02,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:46:02,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:46:02,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:46:02,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,270 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:46:02,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:46:02,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:46:02,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:46:02,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (1/1) ... [2022-10-16 13:46:02,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:46:02,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:02,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 13:46:02,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 13:46:02,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:46:02,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:46:02,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:46:02,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:46:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:46:02,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:46:02,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:46:02,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:46:02,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:46:02,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:46:02,620 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:46:02,626 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:46:02,875 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:46:02,885 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:46:02,885 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 13:46:02,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:46:02 BoogieIcfgContainer [2022-10-16 13:46:02,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:46:02,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:46:02,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:46:02,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:46:02,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:46:01" (1/3) ... [2022-10-16 13:46:02,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c8d2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:46:02, skipping insertion in model container [2022-10-16 13:46:02,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:02" (2/3) ... [2022-10-16 13:46:02,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27c8d2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:46:02, skipping insertion in model container [2022-10-16 13:46:02,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:46:02" (3/3) ... [2022-10-16 13:46:02,902 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-2.i [2022-10-16 13:46:02,929 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:46:02,929 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 13:46:03,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:46:03,012 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;@35796416, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:46:03,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 13:46:03,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 35 states have (on average 1.6) internal successors, (56), 45 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:03,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 13:46:03,028 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:03,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:03,030 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:03,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:03,037 INFO L85 PathProgramCache]: Analyzing trace with hash -679084991, now seen corresponding path program 1 times [2022-10-16 13:46:03,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:03,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993728824] [2022-10-16 13:46:03,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:03,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:03,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:03,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:03,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993728824] [2022-10-16 13:46:03,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993728824] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:03,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:03,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:03,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077624603] [2022-10-16 13:46:03,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:03,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:03,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:03,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:03,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:03,460 INFO L87 Difference]: Start difference. First operand has 49 states, 35 states have (on average 1.6) internal successors, (56), 45 states have internal predecessors, (56), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:03,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:03,593 INFO L93 Difference]: Finished difference Result 129 states and 158 transitions. [2022-10-16 13:46:03,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:03,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-10-16 13:46:03,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:03,609 INFO L225 Difference]: With dead ends: 129 [2022-10-16 13:46:03,609 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 13:46:03,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:03,618 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 43 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:03,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 270 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:03,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 13:46:03,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 48. [2022-10-16 13:46:03,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.457142857142857) internal successors, (51), 44 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:03,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2022-10-16 13:46:03,675 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 12 [2022-10-16 13:46:03,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:03,676 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2022-10-16 13:46:03,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:03,677 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2022-10-16 13:46:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 13:46:03,679 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:03,679 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:03,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:46:03,680 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:03,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:03,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1876337405, now seen corresponding path program 1 times [2022-10-16 13:46:03,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:03,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475194967] [2022-10-16 13:46:03,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:03,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:03,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:03,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:03,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:03,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475194967] [2022-10-16 13:46:03,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475194967] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:03,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305202342] [2022-10-16 13:46:03,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:03,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:03,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:04,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:04,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 13:46:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:04,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:04,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:04,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:04,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:04,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:04,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305202342] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:04,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:04,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-10-16 13:46:04,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657851678] [2022-10-16 13:46:04,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:04,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 13:46:04,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:04,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 13:46:04,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:46:04,298 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 13 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:04,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:04,518 INFO L93 Difference]: Finished difference Result 182 states and 215 transitions. [2022-10-16 13:46:04,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 13:46:04,519 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-10-16 13:46:04,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:04,522 INFO L225 Difference]: With dead ends: 182 [2022-10-16 13:46:04,522 INFO L226 Difference]: Without dead ends: 181 [2022-10-16 13:46:04,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-10-16 13:46:04,525 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 202 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:04,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 486 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:04,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-10-16 13:46:04,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 59. [2022-10-16 13:46:04,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 55 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:04,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2022-10-16 13:46:04,553 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 16 [2022-10-16 13:46:04,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:04,554 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2022-10-16 13:46:04,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:04,554 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2022-10-16 13:46:04,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 13:46:04,555 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:04,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:04,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 13:46:04,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:04,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:04,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:04,774 INFO L85 PathProgramCache]: Analyzing trace with hash 2023511165, now seen corresponding path program 1 times [2022-10-16 13:46:04,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:04,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340650175] [2022-10-16 13:46:04,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:04,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:04,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:04,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:04,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340650175] [2022-10-16 13:46:04,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340650175] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:04,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:04,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:46:04,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55752145] [2022-10-16 13:46:04,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:04,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:04,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:04,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:04,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:04,932 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:04,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:04,991 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2022-10-16 13:46:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:04,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-10-16 13:46:04,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:04,995 INFO L225 Difference]: With dead ends: 94 [2022-10-16 13:46:04,995 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 13:46:04,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:05,003 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 49 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:05,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 123 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:05,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 13:46:05,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2022-10-16 13:46:05,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.434782608695652) internal successors, (66), 55 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2022-10-16 13:46:05,028 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 17 [2022-10-16 13:46:05,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:05,029 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2022-10-16 13:46:05,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:05,031 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2022-10-16 13:46:05,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 13:46:05,032 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:05,032 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:05,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:46:05,036 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:05,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:05,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1963082532, now seen corresponding path program 1 times [2022-10-16 13:46:05,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:05,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222225717] [2022-10-16 13:46:05,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:05,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:05,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:05,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222225717] [2022-10-16 13:46:05,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222225717] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:05,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863310232] [2022-10-16 13:46:05,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:05,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:05,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:05,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:05,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 13:46:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:05,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:05,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:46:05,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863310232] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:05,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:46:05,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-10-16 13:46:05,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600791754] [2022-10-16 13:46:05,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:05,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:46:05,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:05,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:46:05,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:46:05,363 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:05,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:05,414 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2022-10-16 13:46:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:46:05,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-10-16 13:46:05,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:05,419 INFO L225 Difference]: With dead ends: 59 [2022-10-16 13:46:05,419 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 13:46:05,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:46:05,423 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 38 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:05,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 145 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:05,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 13:46:05,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-10-16 13:46:05,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 54 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2022-10-16 13:46:05,443 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 17 [2022-10-16 13:46:05,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:05,443 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2022-10-16 13:46:05,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:05,444 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2022-10-16 13:46:05,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 13:46:05,445 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:05,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:05,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:05,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 13:46:05,659 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:05,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:05,660 INFO L85 PathProgramCache]: Analyzing trace with hash 395477825, now seen corresponding path program 1 times [2022-10-16 13:46:05,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:05,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182544147] [2022-10-16 13:46:05,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:05,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:46:05,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:05,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182544147] [2022-10-16 13:46:05,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182544147] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:05,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:05,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:05,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014241627] [2022-10-16 13:46:05,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:05,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:05,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:05,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:05,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:05,752 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:05,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:05,790 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2022-10-16 13:46:05,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:05,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-10-16 13:46:05,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:05,792 INFO L225 Difference]: With dead ends: 66 [2022-10-16 13:46:05,792 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 13:46:05,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:05,794 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 6 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:05,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 176 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:05,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 13:46:05,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2022-10-16 13:46:05,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 50 states have (on average 1.34) internal successors, (67), 58 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:05,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2022-10-16 13:46:05,802 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 21 [2022-10-16 13:46:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:05,803 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-10-16 13:46:05,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:05,803 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2022-10-16 13:46:05,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 13:46:05,804 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:05,804 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:05,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:46:05,805 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:05,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:05,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2024977696, now seen corresponding path program 1 times [2022-10-16 13:46:05,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:05,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358829173] [2022-10-16 13:46:05,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:05,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:46:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:05,902 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 13:46:05,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:05,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358829173] [2022-10-16 13:46:05,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358829173] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:05,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:05,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:46:05,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937324893] [2022-10-16 13:46:05,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:05,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:46:05,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:05,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:46:05,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:05,905 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:05,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:05,965 INFO L93 Difference]: Finished difference Result 109 states and 124 transitions. [2022-10-16 13:46:05,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:46:05,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-10-16 13:46:05,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:05,969 INFO L225 Difference]: With dead ends: 109 [2022-10-16 13:46:05,969 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 13:46:05,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:46:05,972 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 19 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:05,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 275 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:05,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 13:46:05,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 66. [2022-10-16 13:46:05,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.320754716981132) internal successors, (70), 61 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 13:46:05,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2022-10-16 13:46:05,986 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 24 [2022-10-16 13:46:05,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:05,986 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2022-10-16 13:46:05,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:05,987 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2022-10-16 13:46:05,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 13:46:05,989 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:05,990 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:05,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:46:05,990 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:05,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:05,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2053606847, now seen corresponding path program 1 times [2022-10-16 13:46:05,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:05,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122073766] [2022-10-16 13:46:05,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:05,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:46:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:46:06,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:06,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122073766] [2022-10-16 13:46:06,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122073766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:06,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:06,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:46:06,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607768452] [2022-10-16 13:46:06,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:06,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:46:06,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:06,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:46:06,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:46:06,081 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:06,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:06,142 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2022-10-16 13:46:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:46:06,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-10-16 13:46:06,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:06,145 INFO L225 Difference]: With dead ends: 100 [2022-10-16 13:46:06,149 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 13:46:06,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:46:06,150 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 27 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:06,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 124 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:06,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 13:46:06,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 72. [2022-10-16 13:46:06,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 66 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:06,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 86 transitions. [2022-10-16 13:46:06,166 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 86 transitions. Word has length 24 [2022-10-16 13:46:06,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:06,167 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 86 transitions. [2022-10-16 13:46:06,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:06,173 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 86 transitions. [2022-10-16 13:46:06,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 13:46:06,174 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:06,174 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:06,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 13:46:06,179 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:06,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:06,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1650199203, now seen corresponding path program 1 times [2022-10-16 13:46:06,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:06,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115498837] [2022-10-16 13:46:06,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:06,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 13:46:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 13:46:06,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:06,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115498837] [2022-10-16 13:46:06,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115498837] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:06,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:06,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:06,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542963015] [2022-10-16 13:46:06,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:06,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:06,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:06,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:06,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:06,323 INFO L87 Difference]: Start difference. First operand 72 states and 86 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:06,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:06,385 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2022-10-16 13:46:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:06,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-10-16 13:46:06,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:06,387 INFO L225 Difference]: With dead ends: 98 [2022-10-16 13:46:06,387 INFO L226 Difference]: Without dead ends: 96 [2022-10-16 13:46:06,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:06,389 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 26 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:06,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 162 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:06,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-10-16 13:46:06,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 77. [2022-10-16 13:46:06,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 70 states have internal predecessors, (82), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:06,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2022-10-16 13:46:06,399 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 25 [2022-10-16 13:46:06,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:06,399 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2022-10-16 13:46:06,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:06,400 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2022-10-16 13:46:06,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 13:46:06,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:06,401 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:06,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 13:46:06,402 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:06,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:06,403 INFO L85 PathProgramCache]: Analyzing trace with hash 946313981, now seen corresponding path program 1 times [2022-10-16 13:46:06,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:06,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754725760] [2022-10-16 13:46:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:06,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,529 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 13:46:06,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:06,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754725760] [2022-10-16 13:46:06,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754725760] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:06,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032837084] [2022-10-16 13:46:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:06,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:06,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:06,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:06,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 13:46:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:06,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:06,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 13:46:06,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 13:46:06,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032837084] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:06,751 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:06,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-10-16 13:46:06,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934984074] [2022-10-16 13:46:06,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:06,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:46:06,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:06,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:46:06,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:46:06,753 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:06,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:06,891 INFO L93 Difference]: Finished difference Result 129 states and 151 transitions. [2022-10-16 13:46:06,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:46:06,892 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-10-16 13:46:06,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:06,893 INFO L225 Difference]: With dead ends: 129 [2022-10-16 13:46:06,893 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 13:46:06,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:46:06,895 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 62 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:06,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 313 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:06,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 13:46:06,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-10-16 13:46:06,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 63 states have (on average 1.2698412698412698) internal successors, (80), 70 states have internal predecessors, (80), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2022-10-16 13:46:06,905 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 25 [2022-10-16 13:46:06,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:06,905 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2022-10-16 13:46:06,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 13 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:06,906 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2022-10-16 13:46:06,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 13:46:06,907 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:06,907 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:06,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:07,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:07,122 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:07,124 INFO L85 PathProgramCache]: Analyzing trace with hash -687201487, now seen corresponding path program 2 times [2022-10-16 13:46:07,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:07,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661681099] [2022-10-16 13:46:07,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:07,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:07,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:07,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:07,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661681099] [2022-10-16 13:46:07,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661681099] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:07,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184987908] [2022-10-16 13:46:07,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:46:07,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:07,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:07,356 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:07,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 13:46:07,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:46:07,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:46:07,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 13:46:07,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:07,504 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 13:46:07,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 13:46:07,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184987908] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:07,586 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:07,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4, 4] total 18 [2022-10-16 13:46:07,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563234096] [2022-10-16 13:46:07,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:07,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 13:46:07,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:07,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 13:46:07,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-10-16 13:46:07,588 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand has 19 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:07,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:07,916 INFO L93 Difference]: Finished difference Result 221 states and 263 transitions. [2022-10-16 13:46:07,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 13:46:07,917 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 28 [2022-10-16 13:46:07,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:07,919 INFO L225 Difference]: With dead ends: 221 [2022-10-16 13:46:07,919 INFO L226 Difference]: Without dead ends: 220 [2022-10-16 13:46:07,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2022-10-16 13:46:07,921 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 436 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:07,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 494 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:07,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-10-16 13:46:07,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 70. [2022-10-16 13:46:07,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.263157894736842) internal successors, (72), 63 states have internal predecessors, (72), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:07,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2022-10-16 13:46:07,934 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 28 [2022-10-16 13:46:07,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:07,934 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2022-10-16 13:46:07,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2022-10-16 13:46:07,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 13:46:07,936 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:07,936 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:07,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:08,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:08,152 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:08,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:08,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1462169221, now seen corresponding path program 2 times [2022-10-16 13:46:08,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:08,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870299837] [2022-10-16 13:46:08,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:08,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-16 13:46:08,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:08,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870299837] [2022-10-16 13:46:08,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870299837] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:08,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:08,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:46:08,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809622312] [2022-10-16 13:46:08,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:08,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:46:08,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:08,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:46:08,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:08,325 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:08,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:08,415 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2022-10-16 13:46:08,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:46:08,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2022-10-16 13:46:08,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:08,417 INFO L225 Difference]: With dead ends: 100 [2022-10-16 13:46:08,417 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 13:46:08,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:46:08,418 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 30 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:08,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 215 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:08,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 13:46:08,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 70. [2022-10-16 13:46:08,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.2456140350877194) internal successors, (71), 63 states have internal predecessors, (71), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:08,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2022-10-16 13:46:08,428 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 33 [2022-10-16 13:46:08,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:08,428 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2022-10-16 13:46:08,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:08,429 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2022-10-16 13:46:08,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 13:46:08,430 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:08,430 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:08,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 13:46:08,430 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:08,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:08,431 INFO L85 PathProgramCache]: Analyzing trace with hash -681503807, now seen corresponding path program 1 times [2022-10-16 13:46:08,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:08,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369093858] [2022-10-16 13:46:08,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:08,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 13:46:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,519 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 13:46:08,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:08,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369093858] [2022-10-16 13:46:08,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369093858] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:08,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:08,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:46:08,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454470961] [2022-10-16 13:46:08,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:08,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:08,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:08,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:08,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:08,522 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:08,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:08,584 INFO L93 Difference]: Finished difference Result 112 states and 124 transitions. [2022-10-16 13:46:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:46:08,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2022-10-16 13:46:08,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:08,586 INFO L225 Difference]: With dead ends: 112 [2022-10-16 13:46:08,586 INFO L226 Difference]: Without dead ends: 94 [2022-10-16 13:46:08,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:08,587 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 33 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:08,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 182 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:08,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-16 13:46:08,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 71. [2022-10-16 13:46:08,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 64 states have internal predecessors, (72), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:08,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 81 transitions. [2022-10-16 13:46:08,598 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 81 transitions. Word has length 36 [2022-10-16 13:46:08,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:08,599 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 81 transitions. [2022-10-16 13:46:08,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:08,599 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 81 transitions. [2022-10-16 13:46:08,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 13:46:08,600 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:08,600 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:08,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 13:46:08,600 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:08,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:08,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1810257942, now seen corresponding path program 1 times [2022-10-16 13:46:08,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:08,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231584709] [2022-10-16 13:46:08,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:08,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 13:46:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 13:46:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,745 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 13:46:08,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:08,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231584709] [2022-10-16 13:46:08,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231584709] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:08,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087158846] [2022-10-16 13:46:08,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:08,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:08,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:08,747 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:08,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 13:46:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 13:46:08,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:09,003 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 13:46:09,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:09,136 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 13:46:09,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087158846] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:09,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:09,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10, 10] total 22 [2022-10-16 13:46:09,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693821290] [2022-10-16 13:46:09,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:09,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 13:46:09,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:09,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 13:46:09,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-10-16 13:46:09,139 INFO L87 Difference]: Start difference. First operand 71 states and 81 transitions. Second operand has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 21 states have internal predecessors, (70), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-10-16 13:46:09,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:09,590 INFO L93 Difference]: Finished difference Result 184 states and 212 transitions. [2022-10-16 13:46:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 13:46:09,591 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 21 states have internal predecessors, (70), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 43 [2022-10-16 13:46:09,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:09,592 INFO L225 Difference]: With dead ends: 184 [2022-10-16 13:46:09,592 INFO L226 Difference]: Without dead ends: 131 [2022-10-16 13:46:09,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 13:46:09,594 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 154 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:09,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 430 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:46:09,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-10-16 13:46:09,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 92. [2022-10-16 13:46:09,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 78 states have (on average 1.205128205128205) internal successors, (94), 84 states have internal predecessors, (94), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 13:46:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2022-10-16 13:46:09,608 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 43 [2022-10-16 13:46:09,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:09,608 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2022-10-16 13:46:09,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 21 states have internal predecessors, (70), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-10-16 13:46:09,609 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2022-10-16 13:46:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 13:46:09,609 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:09,610 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:09,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 13:46:09,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 13:46:09,817 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:09,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:09,818 INFO L85 PathProgramCache]: Analyzing trace with hash -877994794, now seen corresponding path program 1 times [2022-10-16 13:46:09,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:09,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753055259] [2022-10-16 13:46:09,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:09,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:09,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:09,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 13:46:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:09,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-16 13:46:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-10-16 13:46:10,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:10,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753055259] [2022-10-16 13:46:10,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753055259] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:10,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524805278] [2022-10-16 13:46:10,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:10,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:10,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:10,002 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:10,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 13:46:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:10,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 13:46:10,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:10,510 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 8 proven. 91 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 13:46:10,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-16 13:46:10,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524805278] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:10,824 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:10,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 18, 18] total 39 [2022-10-16 13:46:10,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854127700] [2022-10-16 13:46:10,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:10,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-10-16 13:46:10,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:10,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-10-16 13:46:10,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1188, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 13:46:10,827 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand has 39 states, 39 states have (on average 2.5641025641025643) internal successors, (100), 38 states have internal predecessors, (100), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-10-16 13:46:11,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:11,418 INFO L93 Difference]: Finished difference Result 200 states and 231 transitions. [2022-10-16 13:46:11,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 13:46:11,419 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.5641025641025643) internal successors, (100), 38 states have internal predecessors, (100), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 60 [2022-10-16 13:46:11,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:11,420 INFO L225 Difference]: With dead ends: 200 [2022-10-16 13:46:11,421 INFO L226 Difference]: Without dead ends: 142 [2022-10-16 13:46:11,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=606, Invalid=2364, Unknown=0, NotChecked=0, Total=2970 [2022-10-16 13:46:11,424 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 239 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:11,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 348 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:46:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-10-16 13:46:11,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 108. [2022-10-16 13:46:11,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 94 states have (on average 1.1702127659574468) internal successors, (110), 99 states have internal predecessors, (110), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 13:46:11,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2022-10-16 13:46:11,439 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 60 [2022-10-16 13:46:11,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:11,439 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2022-10-16 13:46:11,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.5641025641025643) internal successors, (100), 38 states have internal predecessors, (100), 6 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-10-16 13:46:11,440 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2022-10-16 13:46:11,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 13:46:11,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:11,441 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:11,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:11,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:11,655 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:11,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:11,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1898714153, now seen corresponding path program 1 times [2022-10-16 13:46:11,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:11,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516996131] [2022-10-16 13:46:11,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:11,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:46:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,859 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 13:46:11,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:11,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516996131] [2022-10-16 13:46:11,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516996131] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:11,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927551070] [2022-10-16 13:46:11,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:11,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:11,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:11,863 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:11,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 13:46:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 13:46:12,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:12,063 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 13:46:12,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:46:12,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927551070] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:12,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:46:12,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-10-16 13:46:12,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27460266] [2022-10-16 13:46:12,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:12,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:12,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:12,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:12,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:46:12,066 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:12,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:12,119 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2022-10-16 13:46:12,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:46:12,119 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 72 [2022-10-16 13:46:12,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:12,123 INFO L225 Difference]: With dead ends: 120 [2022-10-16 13:46:12,123 INFO L226 Difference]: Without dead ends: 118 [2022-10-16 13:46:12,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:46:12,127 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 55 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:12,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 111 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:12,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-16 13:46:12,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2022-10-16 13:46:12,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 94 states have (on average 1.148936170212766) internal successors, (108), 97 states have internal predecessors, (108), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 13:46:12,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2022-10-16 13:46:12,147 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 72 [2022-10-16 13:46:12,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:12,147 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2022-10-16 13:46:12,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:12,147 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2022-10-16 13:46:12,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 13:46:12,148 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:12,148 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:12,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:12,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:12,365 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:12,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1610278446, now seen corresponding path program 1 times [2022-10-16 13:46:12,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:12,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543240665] [2022-10-16 13:46:12,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:12,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:12,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:12,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543240665] [2022-10-16 13:46:12,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543240665] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:12,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107853004] [2022-10-16 13:46:12,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:12,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:12,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:12,558 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:12,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 13:46:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:12,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:12,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:12,719 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:12,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:12,759 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:12,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107853004] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:12,759 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:12,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-10-16 13:46:12,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007110143] [2022-10-16 13:46:12,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:12,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 13:46:12,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:12,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 13:46:12,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:46:12,761 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:12,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:12,874 INFO L93 Difference]: Finished difference Result 122 states and 138 transitions. [2022-10-16 13:46:12,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 13:46:12,875 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 71 [2022-10-16 13:46:12,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:12,876 INFO L225 Difference]: With dead ends: 122 [2022-10-16 13:46:12,876 INFO L226 Difference]: Without dead ends: 121 [2022-10-16 13:46:12,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2022-10-16 13:46:12,877 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 27 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:12,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 284 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:12,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-10-16 13:46:12,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2022-10-16 13:46:12,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 105 states have (on average 1.1523809523809523) internal successors, (121), 108 states have internal predecessors, (121), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 13:46:12,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 133 transitions. [2022-10-16 13:46:12,904 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 133 transitions. Word has length 71 [2022-10-16 13:46:12,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:12,904 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 133 transitions. [2022-10-16 13:46:12,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:12,907 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 133 transitions. [2022-10-16 13:46:12,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 13:46:12,908 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:12,908 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:12,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:13,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 13:46:13,110 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:13,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:13,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1620975851, now seen corresponding path program 1 times [2022-10-16 13:46:13,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:13,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202376450] [2022-10-16 13:46:13,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:13,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,318 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:13,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:13,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202376450] [2022-10-16 13:46:13,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202376450] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:13,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510480143] [2022-10-16 13:46:13,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:13,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:13,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:13,320 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:13,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 13:46:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:13,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:13,524 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:13,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:46:13,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510480143] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:13,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:46:13,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-10-16 13:46:13,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582952927] [2022-10-16 13:46:13,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:13,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:46:13,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:13,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:46:13,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:46:13,527 INFO L87 Difference]: Start difference. First operand 117 states and 133 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:13,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:13,574 INFO L93 Difference]: Finished difference Result 117 states and 133 transitions. [2022-10-16 13:46:13,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:46:13,574 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 72 [2022-10-16 13:46:13,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:13,576 INFO L225 Difference]: With dead ends: 117 [2022-10-16 13:46:13,576 INFO L226 Difference]: Without dead ends: 116 [2022-10-16 13:46:13,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:46:13,577 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 7 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:13,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 157 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:13,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-10-16 13:46:13,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-10-16 13:46:13,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 105 states have (on average 1.1238095238095238) internal successors, (118), 107 states have internal predecessors, (118), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 13:46:13,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 130 transitions. [2022-10-16 13:46:13,596 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 130 transitions. Word has length 72 [2022-10-16 13:46:13,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:13,597 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 130 transitions. [2022-10-16 13:46:13,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:13,597 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 130 transitions. [2022-10-16 13:46:13,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 13:46:13,598 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:13,598 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:13,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:13,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 13:46:13,813 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:13,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:13,814 INFO L85 PathProgramCache]: Analyzing trace with hash -125857924, now seen corresponding path program 1 times [2022-10-16 13:46:13,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:13,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772115501] [2022-10-16 13:46:13,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:13,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:46:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,016 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 13:46:14,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:14,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772115501] [2022-10-16 13:46:14,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772115501] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:14,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537363060] [2022-10-16 13:46:14,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:14,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:14,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:14,019 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:14,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 13:46:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:46:14,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 13:46:14,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:14,308 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-10-16 13:46:14,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537363060] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:14,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:14,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-10-16 13:46:14,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34567048] [2022-10-16 13:46:14,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:14,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 13:46:14,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:14,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 13:46:14,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:46:14,311 INFO L87 Difference]: Start difference. First operand 116 states and 130 transitions. Second operand has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:46:14,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:14,556 INFO L93 Difference]: Finished difference Result 210 states and 226 transitions. [2022-10-16 13:46:14,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 13:46:14,557 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 75 [2022-10-16 13:46:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:14,558 INFO L225 Difference]: With dead ends: 210 [2022-10-16 13:46:14,558 INFO L226 Difference]: Without dead ends: 209 [2022-10-16 13:46:14,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-10-16 13:46:14,560 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 151 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:14,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 317 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:14,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-10-16 13:46:14,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 115. [2022-10-16 13:46:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 105 states have (on average 1.1142857142857143) internal successors, (117), 106 states have internal predecessors, (117), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 13:46:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 129 transitions. [2022-10-16 13:46:14,576 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 129 transitions. Word has length 75 [2022-10-16 13:46:14,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:14,576 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 129 transitions. [2022-10-16 13:46:14,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:46:14,577 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 129 transitions. [2022-10-16 13:46:14,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-16 13:46:14,578 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:14,578 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:14,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:14,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 13:46:14,792 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:14,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:14,793 INFO L85 PathProgramCache]: Analyzing trace with hash 393371757, now seen corresponding path program 1 times [2022-10-16 13:46:14,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:14,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101208661] [2022-10-16 13:46:14,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:14,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:46:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-10-16 13:46:14,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:14,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101208661] [2022-10-16 13:46:14,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101208661] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:14,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:14,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:14,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509493862] [2022-10-16 13:46:14,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:14,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:14,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:14,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:14,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:14,908 INFO L87 Difference]: Start difference. First operand 115 states and 129 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:14,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:14,952 INFO L93 Difference]: Finished difference Result 115 states and 129 transitions. [2022-10-16 13:46:14,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:14,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2022-10-16 13:46:14,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:14,955 INFO L225 Difference]: With dead ends: 115 [2022-10-16 13:46:14,955 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 13:46:14,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:14,956 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 5 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:14,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 153 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:14,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 13:46:14,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-10-16 13:46:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 105 states have (on average 1.1047619047619048) internal successors, (116), 105 states have internal predecessors, (116), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 13:46:14,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2022-10-16 13:46:14,974 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 76 [2022-10-16 13:46:14,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:14,974 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2022-10-16 13:46:14,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:14,974 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2022-10-16 13:46:14,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-10-16 13:46:14,975 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:14,976 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:14,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 13:46:14,976 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:14,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:14,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2131969019, now seen corresponding path program 2 times [2022-10-16 13:46:14,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:14,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487105047] [2022-10-16 13:46:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:14,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:46:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:46:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,102 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-10-16 13:46:15,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:15,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487105047] [2022-10-16 13:46:15,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487105047] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:15,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:15,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:15,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770738480] [2022-10-16 13:46:15,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:15,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:15,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:15,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:15,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:15,105 INFO L87 Difference]: Start difference. First operand 114 states and 128 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:46:15,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:15,156 INFO L93 Difference]: Finished difference Result 114 states and 128 transitions. [2022-10-16 13:46:15,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:15,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 82 [2022-10-16 13:46:15,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:15,158 INFO L225 Difference]: With dead ends: 114 [2022-10-16 13:46:15,159 INFO L226 Difference]: Without dead ends: 113 [2022-10-16 13:46:15,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:15,160 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 23 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:15,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 115 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:15,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-10-16 13:46:15,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2022-10-16 13:46:15,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 104 states have (on average 1.0961538461538463) internal successors, (114), 103 states have internal predecessors, (114), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 13:46:15,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 126 transitions. [2022-10-16 13:46:15,177 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 126 transitions. Word has length 82 [2022-10-16 13:46:15,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:15,177 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 126 transitions. [2022-10-16 13:46:15,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:46:15,178 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 126 transitions. [2022-10-16 13:46:15,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 13:46:15,179 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:15,179 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:15,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 13:46:15,180 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:15,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:15,180 INFO L85 PathProgramCache]: Analyzing trace with hash 779028129, now seen corresponding path program 2 times [2022-10-16 13:46:15,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:15,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776236519] [2022-10-16 13:46:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:15,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:46:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:46:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-10-16 13:46:15,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:15,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776236519] [2022-10-16 13:46:15,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776236519] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:15,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430560103] [2022-10-16 13:46:15,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:46:15,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:15,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:15,484 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:15,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 13:46:15,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:46:15,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:46:15,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 13:46:15,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:15,717 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-10-16 13:46:15,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-10-16 13:46:15,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430560103] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:15,806 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:15,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2022-10-16 13:46:15,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336965660] [2022-10-16 13:46:15,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:15,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 13:46:15,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:15,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 13:46:15,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:46:15,808 INFO L87 Difference]: Start difference. First operand 112 states and 126 transitions. Second operand has 17 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 8 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-16 13:46:16,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:16,049 INFO L93 Difference]: Finished difference Result 317 states and 355 transitions. [2022-10-16 13:46:16,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 13:46:16,050 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 8 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 83 [2022-10-16 13:46:16,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:16,053 INFO L225 Difference]: With dead ends: 317 [2022-10-16 13:46:16,053 INFO L226 Difference]: Without dead ends: 316 [2022-10-16 13:46:16,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2022-10-16 13:46:16,055 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 203 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:16,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 289 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:16,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2022-10-16 13:46:16,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 148. [2022-10-16 13:46:16,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 136 states have (on average 1.1323529411764706) internal successors, (154), 131 states have internal predecessors, (154), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (16), 15 states have call predecessors, (16), 8 states have call successors, (16) [2022-10-16 13:46:16,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 178 transitions. [2022-10-16 13:46:16,083 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 178 transitions. Word has length 83 [2022-10-16 13:46:16,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:16,083 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 178 transitions. [2022-10-16 13:46:16,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 8 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-16 13:46:16,084 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 178 transitions. [2022-10-16 13:46:16,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 13:46:16,085 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:16,085 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:16,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:16,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-10-16 13:46:16,299 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:16,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:16,300 INFO L85 PathProgramCache]: Analyzing trace with hash 79320454, now seen corresponding path program 2 times [2022-10-16 13:46:16,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:16,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181393326] [2022-10-16 13:46:16,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:16,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:16,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:16,621 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-10-16 13:46:16,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:16,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181393326] [2022-10-16 13:46:16,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181393326] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:16,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988465652] [2022-10-16 13:46:16,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:46:16,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:16,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:16,623 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:16,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 13:46:16,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 13:46:16,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:46:16,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:46:16,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-10-16 13:46:16,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-10-16 13:46:17,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988465652] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:17,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:17,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 20 [2022-10-16 13:46:17,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262204923] [2022-10-16 13:46:17,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:17,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 13:46:17,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:17,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 13:46:17,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2022-10-16 13:46:17,022 INFO L87 Difference]: Start difference. First operand 148 states and 178 transitions. Second operand has 21 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:17,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:17,279 INFO L93 Difference]: Finished difference Result 154 states and 185 transitions. [2022-10-16 13:46:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 13:46:17,280 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 83 [2022-10-16 13:46:17,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:17,282 INFO L225 Difference]: With dead ends: 154 [2022-10-16 13:46:17,282 INFO L226 Difference]: Without dead ends: 116 [2022-10-16 13:46:17,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 13:46:17,285 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 62 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:17,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 345 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:17,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-10-16 13:46:17,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 100. [2022-10-16 13:46:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 90 states have (on average 1.0333333333333334) internal successors, (93), 90 states have internal predecessors, (93), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-16 13:46:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 109 transitions. [2022-10-16 13:46:17,301 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 109 transitions. Word has length 83 [2022-10-16 13:46:17,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:17,302 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 109 transitions. [2022-10-16 13:46:17,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.5) internal successors, (90), 20 states have internal predecessors, (90), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:17,302 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 109 transitions. [2022-10-16 13:46:17,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 13:46:17,305 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:17,305 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:17,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:17,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 13:46:17,508 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 13:46:17,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:17,508 INFO L85 PathProgramCache]: Analyzing trace with hash -933945503, now seen corresponding path program 3 times [2022-10-16 13:46:17,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:17,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796102996] [2022-10-16 13:46:17,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:17,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:18,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:18,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 13:46:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:18,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:46:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:18,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 13:46:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:18,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-10-16 13:46:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:18,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 13:46:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:18,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 13:46:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:18,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-10-16 13:46:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 0 proven. 141 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2022-10-16 13:46:18,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:18,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796102996] [2022-10-16 13:46:18,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796102996] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:18,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118352976] [2022-10-16 13:46:18,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 13:46:18,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:18,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:18,144 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:18,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 13:46:18,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-10-16 13:46:18,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:46:18,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:46:18,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-10-16 13:46:18,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:18,721 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-10-16 13:46:18,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118352976] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:18,722 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:18,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 24 [2022-10-16 13:46:18,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946109567] [2022-10-16 13:46:18,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:18,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 13:46:18,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:18,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 13:46:18,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2022-10-16 13:46:18,727 INFO L87 Difference]: Start difference. First operand 100 states and 109 transitions. Second operand has 25 states, 24 states have (on average 3.9583333333333335) internal successors, (95), 24 states have internal predecessors, (95), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-10-16 13:46:19,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:19,101 INFO L93 Difference]: Finished difference Result 111 states and 130 transitions. [2022-10-16 13:46:19,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 13:46:19,102 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.9583333333333335) internal successors, (95), 24 states have internal predecessors, (95), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 127 [2022-10-16 13:46:19,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:19,103 INFO L225 Difference]: With dead ends: 111 [2022-10-16 13:46:19,103 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 13:46:19,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=464, Invalid=1258, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 13:46:19,105 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 143 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:19,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 180 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:19,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 13:46:19,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 13:46:19,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 13:46:19,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 13:46:19,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 127 [2022-10-16 13:46:19,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:19,107 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 13:46:19,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.9583333333333335) internal successors, (95), 24 states have internal predecessors, (95), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-10-16 13:46:19,108 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 13:46:19,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 13:46:19,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-10-16 13:46:19,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-10-16 13:46:19,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-10-16 13:46:19,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-10-16 13:46:19,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-10-16 13:46:19,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-10-16 13:46:19,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-10-16 13:46:19,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-10-16 13:46:19,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-10-16 13:46:19,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-10-16 13:46:19,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:19,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 13:46:19,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.