/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/memsafety-ext2/split_list_test05-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:49:29,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:49:29,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:49:29,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:49:29,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:49:29,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:49:29,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:49:29,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:49:29,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:49:29,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:49:29,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:49:29,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:49:29,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:49:29,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:49:29,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:49:29,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:49:29,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:49:29,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:49:29,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:49:29,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:49:29,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:49:29,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:49:29,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:49:29,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:49:29,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 14:49:29,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 14:49:29,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 14:49:29,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 14:49:29,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 14:49:29,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 14:49:29,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:49:29,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:49:29,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:49:29,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:49:29,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:49:29,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:49:29,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:49:29,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:49:29,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:49:29,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:49:29,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:49:29,530 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 14:49:29,568 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:49:29,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:49:29,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:49:29,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:49:29,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:49:29,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:49:29,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:49:29,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:49:29,573 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:49:29,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:49:29,573 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:49:29,573 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:49:29,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:49:29,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:49:29,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:49:29,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:49:29,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:49:29,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:49:29,576 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:49:29,577 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:49:29,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:49:29,577 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:49:29,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:49:29,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:49:29,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:49:29,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:49:29,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:49:29,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:49:29,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:49:29,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:49:29,580 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:49:29,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:49:29,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:49:29,581 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:49:29,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:49:29,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:49:29,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:49:29,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:49:29,980 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:49:29,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext2/split_list_test05-2.i [2022-10-16 14:49:30,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd67da5df/0d05be6093a142718abb879c3ca0c488/FLAG3036eaa83 [2022-10-16 14:49:30,790 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:49:30,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext2/split_list_test05-2.i [2022-10-16 14:49:30,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd67da5df/0d05be6093a142718abb879c3ca0c488/FLAG3036eaa83 [2022-10-16 14:49:31,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd67da5df/0d05be6093a142718abb879c3ca0c488 [2022-10-16 14:49:31,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:49:31,113 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:49:31,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:49:31,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:49:31,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:49:31,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5908f533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31, skipping insertion in model container [2022-10-16 14:49:31,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:49:31,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:49:31,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:49:31,703 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:49:31,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:49:31,796 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:49:31,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31 WrapperNode [2022-10-16 14:49:31,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:49:31,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:49:31,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:49:31,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:49:31,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,862 INFO L138 Inliner]: procedures = 125, calls = 95, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 288 [2022-10-16 14:49:31,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:49:31,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:49:31,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:49:31,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:49:31,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:49:31,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:49:31,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:49:31,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:49:31,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (1/1) ... [2022-10-16 14:49:31,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:49:31,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:49:32,006 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 14:49:32,021 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 14:49:32,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 14:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 14:49:32,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:49:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:49:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:49:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:49:32,075 INFO L130 BoogieDeclarations]: Found specification of procedure append [2022-10-16 14:49:32,075 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2022-10-16 14:49:32,202 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:49:32,204 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:49:32,766 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:49:32,777 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:49:32,777 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-10-16 14:49:32,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:49:32 BoogieIcfgContainer [2022-10-16 14:49:32,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:49:32,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:49:32,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:49:32,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:49:32,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:49:31" (1/3) ... [2022-10-16 14:49:32,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9198cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:49:32, skipping insertion in model container [2022-10-16 14:49:32,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:49:31" (2/3) ... [2022-10-16 14:49:32,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9198cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:49:32, skipping insertion in model container [2022-10-16 14:49:32,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:49:32" (3/3) ... [2022-10-16 14:49:32,791 INFO L112 eAbstractionObserver]: Analyzing ICFG split_list_test05-2.i [2022-10-16 14:49:32,812 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:49:32,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 14:49:32,873 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:49:32,882 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;@4f121f72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:49:32,882 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 14:49:32,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 59 states have (on average 1.6440677966101696) internal successors, (97), 65 states have internal predecessors, (97), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-16 14:49:32,902 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:32,903 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:32,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:32,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:32,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1196025228, now seen corresponding path program 1 times [2022-10-16 14:49:32,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:32,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399758783] [2022-10-16 14:49:32,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:32,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:49:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 14:49:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 14:49:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 14:49:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-16 14:49:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 14:49:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-16 14:49:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 14:49:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-16 14:49:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:33,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-10-16 14:49:34,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:34,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399758783] [2022-10-16 14:49:34,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399758783] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:34,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:34,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:49:34,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952340197] [2022-10-16 14:49:34,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:34,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:49:34,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:34,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:49:34,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:49:34,052 INFO L87 Difference]: Start difference. First operand has 80 states, 59 states have (on average 1.6440677966101696) internal successors, (97), 65 states have internal predecessors, (97), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:49:34,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:34,195 INFO L93 Difference]: Finished difference Result 158 states and 252 transitions. [2022-10-16 14:49:34,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:49:34,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2022-10-16 14:49:34,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:34,209 INFO L225 Difference]: With dead ends: 158 [2022-10-16 14:49:34,209 INFO L226 Difference]: Without dead ends: 75 [2022-10-16 14:49:34,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:49:34,218 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 0 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:34,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 191 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:34,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-10-16 14:49:34,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-10-16 14:49:34,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 55 states have (on average 1.4545454545454546) internal successors, (80), 60 states have internal predecessors, (80), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:34,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 110 transitions. [2022-10-16 14:49:34,274 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 110 transitions. Word has length 83 [2022-10-16 14:49:34,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:34,275 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 110 transitions. [2022-10-16 14:49:34,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:49:34,275 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 110 transitions. [2022-10-16 14:49:34,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-16 14:49:34,281 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:34,282 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:34,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:49:34,282 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:34,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:34,283 INFO L85 PathProgramCache]: Analyzing trace with hash 415076936, now seen corresponding path program 1 times [2022-10-16 14:49:34,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:34,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571173760] [2022-10-16 14:49:34,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:34,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:35,566 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-10-16 14:49:35,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:35,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571173760] [2022-10-16 14:49:35,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571173760] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:35,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:35,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:49:35,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883006500] [2022-10-16 14:49:35,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:35,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:49:35,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:35,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:49:35,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:49:35,573 INFO L87 Difference]: Start difference. First operand 75 states and 110 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:35,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:35,731 INFO L93 Difference]: Finished difference Result 107 states and 149 transitions. [2022-10-16 14:49:35,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:49:35,731 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2022-10-16 14:49:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:35,734 INFO L225 Difference]: With dead ends: 107 [2022-10-16 14:49:35,734 INFO L226 Difference]: Without dead ends: 85 [2022-10-16 14:49:35,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 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 14:49:35,737 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 8 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:35,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 370 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:35,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-16 14:49:35,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2022-10-16 14:49:35,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 59 states have (on average 1.423728813559322) internal successors, (84), 64 states have internal predecessors, (84), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:35,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 114 transitions. [2022-10-16 14:49:35,752 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 114 transitions. Word has length 122 [2022-10-16 14:49:35,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:35,755 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 114 transitions. [2022-10-16 14:49:35,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:35,755 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 114 transitions. [2022-10-16 14:49:35,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-16 14:49:35,758 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:35,758 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:35,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:49:35,759 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:35,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:35,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2146750212, now seen corresponding path program 1 times [2022-10-16 14:49:35,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:35,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144308503] [2022-10-16 14:49:35,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:35,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:36,534 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2022-10-16 14:49:36,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:36,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144308503] [2022-10-16 14:49:36,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144308503] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:36,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:36,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:49:36,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31399445] [2022-10-16 14:49:36,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:36,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:49:36,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:36,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:49:36,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:49:36,543 INFO L87 Difference]: Start difference. First operand 79 states and 114 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:36,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:36,666 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2022-10-16 14:49:36,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:49:36,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 126 [2022-10-16 14:49:36,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:36,669 INFO L225 Difference]: With dead ends: 80 [2022-10-16 14:49:36,670 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 14:49:36,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 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 14:49:36,672 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 10 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:36,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 360 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:36,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 14:49:36,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2022-10-16 14:49:36,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 63 states have internal predecessors, (83), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:36,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2022-10-16 14:49:36,684 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 113 transitions. Word has length 126 [2022-10-16 14:49:36,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:36,685 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 113 transitions. [2022-10-16 14:49:36,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:36,685 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 113 transitions. [2022-10-16 14:49:36,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 14:49:36,688 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:36,688 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:36,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:49:36,688 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:36,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:36,689 INFO L85 PathProgramCache]: Analyzing trace with hash 2124747323, now seen corresponding path program 1 times [2022-10-16 14:49:36,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:36,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303542011] [2022-10-16 14:49:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:36,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-10-16 14:49:37,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:37,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303542011] [2022-10-16 14:49:37,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303542011] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:37,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:37,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:49:37,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139402632] [2022-10-16 14:49:37,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:37,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:49:37,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:37,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:49:37,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:49:37,444 INFO L87 Difference]: Start difference. First operand 78 states and 113 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:37,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:37,575 INFO L93 Difference]: Finished difference Result 133 states and 186 transitions. [2022-10-16 14:49:37,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:49:37,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2022-10-16 14:49:37,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:37,579 INFO L225 Difference]: With dead ends: 133 [2022-10-16 14:49:37,579 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 14:49:37,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 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 14:49:37,581 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 21 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:37,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 382 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:37,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 14:49:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2022-10-16 14:49:37,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 65 states have internal predecessors, (85), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:37,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2022-10-16 14:49:37,592 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 127 [2022-10-16 14:49:37,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:37,593 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2022-10-16 14:49:37,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:37,593 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2022-10-16 14:49:37,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 14:49:37,595 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:37,596 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:37,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:49:37,596 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:37,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:37,597 INFO L85 PathProgramCache]: Analyzing trace with hash 536399421, now seen corresponding path program 1 times [2022-10-16 14:49:37,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:37,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917825895] [2022-10-16 14:49:37,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:37,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:38,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,325 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-10-16 14:49:38,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:38,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917825895] [2022-10-16 14:49:38,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917825895] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:38,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:38,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:49:38,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676135576] [2022-10-16 14:49:38,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:38,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:49:38,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:38,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:49:38,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:49:38,330 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:38,436 INFO L93 Difference]: Finished difference Result 133 states and 184 transitions. [2022-10-16 14:49:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:49:38,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2022-10-16 14:49:38,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:38,448 INFO L225 Difference]: With dead ends: 133 [2022-10-16 14:49:38,448 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 14:49:38,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 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 14:49:38,456 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 12 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:38,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 379 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:38,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 14:49:38,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2022-10-16 14:49:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 63 states have (on average 1.380952380952381) internal successors, (87), 67 states have internal predecessors, (87), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:38,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2022-10-16 14:49:38,480 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 127 [2022-10-16 14:49:38,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:38,480 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2022-10-16 14:49:38,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:38,482 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2022-10-16 14:49:38,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 14:49:38,488 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:38,489 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:38,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:49:38,489 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:38,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:38,491 INFO L85 PathProgramCache]: Analyzing trace with hash -743464257, now seen corresponding path program 1 times [2022-10-16 14:49:38,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:38,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541461770] [2022-10-16 14:49:38,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:38,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:38,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:38,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,157 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-10-16 14:49:39,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:39,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541461770] [2022-10-16 14:49:39,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541461770] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:39,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:39,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:49:39,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766307730] [2022-10-16 14:49:39,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:39,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:49:39,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:39,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:49:39,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:49:39,163 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:39,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:39,261 INFO L93 Difference]: Finished difference Result 133 states and 182 transitions. [2022-10-16 14:49:39,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:49:39,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2022-10-16 14:49:39,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:39,263 INFO L225 Difference]: With dead ends: 133 [2022-10-16 14:49:39,263 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 14:49:39,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 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 14:49:39,265 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 3 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:39,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 378 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:39,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 14:49:39,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2022-10-16 14:49:39,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 69 states have internal predecessors, (89), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:39,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 119 transitions. [2022-10-16 14:49:39,275 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 119 transitions. Word has length 127 [2022-10-16 14:49:39,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:39,275 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 119 transitions. [2022-10-16 14:49:39,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:39,276 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 119 transitions. [2022-10-16 14:49:39,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 14:49:39,278 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:39,278 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:39,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:49:39,279 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:39,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:39,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1330270271, now seen corresponding path program 1 times [2022-10-16 14:49:39,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:39,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140835258] [2022-10-16 14:49:39,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:39,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,174 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-10-16 14:49:40,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:40,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140835258] [2022-10-16 14:49:40,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140835258] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:49:40,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031014897] [2022-10-16 14:49:40,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:40,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:40,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:49:40,178 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 14:49:40,201 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 14:49:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:40,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:49:40,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:49:41,045 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-10-16 14:49:41,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:49:41,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031014897] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:41,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:49:41,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-10-16 14:49:41,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954872326] [2022-10-16 14:49:41,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:41,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:49:41,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:41,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:49:41,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:49:41,048 INFO L87 Difference]: Start difference. First operand 84 states and 119 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:41,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:41,103 INFO L93 Difference]: Finished difference Result 90 states and 125 transitions. [2022-10-16 14:49:41,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:49:41,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2022-10-16 14:49:41,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:41,105 INFO L225 Difference]: With dead ends: 90 [2022-10-16 14:49:41,105 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 14:49:41,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 154 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 14:49:41,107 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 29 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:41,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 457 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:49:41,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 14:49:41,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 80. [2022-10-16 14:49:41,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 65 states have internal predecessors, (85), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:41,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2022-10-16 14:49:41,116 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 127 [2022-10-16 14:49:41,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:41,117 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2022-10-16 14:49:41,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:41,117 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2022-10-16 14:49:41,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-16 14:49:41,119 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:41,120 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:41,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:49:41,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:41,335 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:41,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:41,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1110450509, now seen corresponding path program 1 times [2022-10-16 14:49:41,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:41,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391012132] [2022-10-16 14:49:41,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:41,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:41,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,218 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-10-16 14:49:42,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:42,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391012132] [2022-10-16 14:49:42,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391012132] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:49:42,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830283069] [2022-10-16 14:49:42,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:42,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:42,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:49:42,221 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 14:49:42,247 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 14:49:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:42,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:49:42,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:49:43,041 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-10-16 14:49:43,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:49:43,132 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2022-10-16 14:49:43,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830283069] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:49:43,133 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:49:43,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-10-16 14:49:43,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474330573] [2022-10-16 14:49:43,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:49:43,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:49:43,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:43,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:49:43,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:49:43,136 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:43,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:43,266 INFO L93 Difference]: Finished difference Result 114 states and 157 transitions. [2022-10-16 14:49:43,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:49:43,267 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 141 [2022-10-16 14:49:43,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:43,268 INFO L225 Difference]: With dead ends: 114 [2022-10-16 14:49:43,268 INFO L226 Difference]: Without dead ends: 94 [2022-10-16 14:49:43,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:49:43,270 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 27 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:43,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 653 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:43,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-16 14:49:43,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2022-10-16 14:49:43,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 73 states have internal predecessors, (93), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:43,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 123 transitions. [2022-10-16 14:49:43,279 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 123 transitions. Word has length 141 [2022-10-16 14:49:43,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:43,279 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 123 transitions. [2022-10-16 14:49:43,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 10 states have internal predecessors, (67), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:43,280 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2022-10-16 14:49:43,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-10-16 14:49:43,281 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:43,282 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:43,329 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 14:49:43,495 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,SelfDestructingSolverStorable7 [2022-10-16 14:49:43,496 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:43,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:43,497 INFO L85 PathProgramCache]: Analyzing trace with hash 69901525, now seen corresponding path program 2 times [2022-10-16 14:49:43,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:43,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899816840] [2022-10-16 14:49:43,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:43,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:44,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,191 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-10-16 14:49:44,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:44,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899816840] [2022-10-16 14:49:44,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899816840] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:44,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:44,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:49:44,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306658649] [2022-10-16 14:49:44,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:44,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:49:44,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:44,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:49:44,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:49:44,194 INFO L87 Difference]: Start difference. First operand 88 states and 123 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:44,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:44,289 INFO L93 Difference]: Finished difference Result 94 states and 129 transitions. [2022-10-16 14:49:44,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:49:44,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 149 [2022-10-16 14:49:44,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:44,291 INFO L225 Difference]: With dead ends: 94 [2022-10-16 14:49:44,291 INFO L226 Difference]: Without dead ends: 92 [2022-10-16 14:49:44,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 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 14:49:44,293 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 6 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:44,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 362 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:44,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-10-16 14:49:44,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-10-16 14:49:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 77 states have internal predecessors, (97), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:44,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 127 transitions. [2022-10-16 14:49:44,301 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 127 transitions. Word has length 149 [2022-10-16 14:49:44,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:44,302 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 127 transitions. [2022-10-16 14:49:44,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:44,302 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 127 transitions. [2022-10-16 14:49:44,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-10-16 14:49:44,304 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:44,305 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:44,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 14:49:44,305 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:44,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:44,306 INFO L85 PathProgramCache]: Analyzing trace with hash -2119220271, now seen corresponding path program 1 times [2022-10-16 14:49:44,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:44,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070254260] [2022-10-16 14:49:44,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:44,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:44,925 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2022-10-16 14:49:44,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:44,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070254260] [2022-10-16 14:49:44,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070254260] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:44,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:49:44,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:49:44,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089976400] [2022-10-16 14:49:44,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:44,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:49:44,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:44,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:49:44,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:49:44,928 INFO L87 Difference]: Start difference. First operand 92 states and 127 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:45,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:45,009 INFO L93 Difference]: Finished difference Result 92 states and 127 transitions. [2022-10-16 14:49:45,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:49:45,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 153 [2022-10-16 14:49:45,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:45,012 INFO L225 Difference]: With dead ends: 92 [2022-10-16 14:49:45,012 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 14:49:45,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 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 14:49:45,013 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 8 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:45,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 354 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:45,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 14:49:45,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-10-16 14:49:45,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 74 states have (on average 1.2972972972972974) internal successors, (96), 76 states have internal predecessors, (96), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:45,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 126 transitions. [2022-10-16 14:49:45,020 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 126 transitions. Word has length 153 [2022-10-16 14:49:45,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:45,021 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 126 transitions. [2022-10-16 14:49:45,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:45,022 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 126 transitions. [2022-10-16 14:49:45,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 14:49:45,023 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:45,024 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:45,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:49:45,024 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:45,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:45,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1271318703, now seen corresponding path program 1 times [2022-10-16 14:49:45,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:45,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453311091] [2022-10-16 14:49:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:45,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-10-16 14:49:45,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:45,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453311091] [2022-10-16 14:49:45,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453311091] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:49:45,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74810272] [2022-10-16 14:49:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:45,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:45,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:49:45,979 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 14:49:46,001 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 14:49:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:46,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 1940 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:49:46,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:49:47,063 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-10-16 14:49:47,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:49:47,203 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2022-10-16 14:49:47,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74810272] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:49:47,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:49:47,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 16 [2022-10-16 14:49:47,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60567000] [2022-10-16 14:49:47,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:49:47,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:49:47,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:47,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:49:47,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:49:47,207 INFO L87 Difference]: Start difference. First operand 91 states and 126 transitions. Second operand has 16 states, 16 states have (on average 5.0625) internal successors, (81), 15 states have internal predecessors, (81), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:47,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:47,385 INFO L93 Difference]: Finished difference Result 126 states and 170 transitions. [2022-10-16 14:49:47,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 14:49:47,385 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 15 states have internal predecessors, (81), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 154 [2022-10-16 14:49:47,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:47,387 INFO L225 Difference]: With dead ends: 126 [2022-10-16 14:49:47,387 INFO L226 Difference]: Without dead ends: 103 [2022-10-16 14:49:47,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 328 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:49:47,388 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 41 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:47,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 651 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:49:47,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-10-16 14:49:47,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2022-10-16 14:49:47,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.255813953488372) internal successors, (108), 88 states have internal predecessors, (108), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:47,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 138 transitions. [2022-10-16 14:49:47,397 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 138 transitions. Word has length 154 [2022-10-16 14:49:47,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:47,398 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 138 transitions. [2022-10-16 14:49:47,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.0625) internal successors, (81), 15 states have internal predecessors, (81), 1 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:47,398 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 138 transitions. [2022-10-16 14:49:47,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 14:49:47,400 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:47,401 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:47,433 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 14:49:47,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:47,616 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:47,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:47,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1507302533, now seen corresponding path program 2 times [2022-10-16 14:49:47,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:47,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667331934] [2022-10-16 14:49:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:47,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:48,453 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2022-10-16 14:49:48,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:48,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667331934] [2022-10-16 14:49:48,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667331934] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:49:48,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8145165] [2022-10-16 14:49:48,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:49:48,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:48,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:49:48,456 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 14:49:48,481 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 14:49:49,281 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:49:49,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:49:49,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:49:49,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:49:49,335 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2022-10-16 14:49:49,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:49:49,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8145165] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:49,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:49:49,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-10-16 14:49:49,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520956008] [2022-10-16 14:49:49,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:49,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:49:49,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:49,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:49:49,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:49:49,338 INFO L87 Difference]: Start difference. First operand 103 states and 138 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:49,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:49,376 INFO L93 Difference]: Finished difference Result 156 states and 199 transitions. [2022-10-16 14:49:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:49:49,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 166 [2022-10-16 14:49:49,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:49,378 INFO L225 Difference]: With dead ends: 156 [2022-10-16 14:49:49,378 INFO L226 Difference]: Without dead ends: 107 [2022-10-16 14:49:49,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:49:49,380 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 1 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:49,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 412 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:49:49,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-10-16 14:49:49,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2022-10-16 14:49:49,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 89 states have (on average 1.247191011235955) internal successors, (111), 91 states have internal predecessors, (111), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-10-16 14:49:49,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 141 transitions. [2022-10-16 14:49:49,387 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 141 transitions. Word has length 166 [2022-10-16 14:49:49,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:49,387 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 141 transitions. [2022-10-16 14:49:49,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:49,388 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 141 transitions. [2022-10-16 14:49:49,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 14:49:49,390 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:49:49,390 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:49,430 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 14:49:49,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:49,606 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-16 14:49:49,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:49:49,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1381460339, now seen corresponding path program 1 times [2022-10-16 14:49:49,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:49:49,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109412189] [2022-10-16 14:49:49,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:49,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:49:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 14:49:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 14:49:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:49:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-16 14:49:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-16 14:49:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-16 14:49:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-16 14:49:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:49:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 14:49:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-16 14:49:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-10-16 14:49:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 14:49:50,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:49:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 14:49:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-16 14:49:50,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:50,354 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2022-10-16 14:49:50,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:49:50,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109412189] [2022-10-16 14:49:50,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109412189] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:49:50,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317333593] [2022-10-16 14:49:50,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:49:50,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:49:50,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:49:50,356 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 14:49:50,358 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 14:49:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:49:51,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 2062 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:49:51,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:49:51,512 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2022-10-16 14:49:51,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:49:51,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317333593] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:49:51,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:49:51,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2022-10-16 14:49:51,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416289605] [2022-10-16 14:49:51,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:49:51,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:49:51,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:49:51,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:49:51,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:49:51,515 INFO L87 Difference]: Start difference. First operand 106 states and 141 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:51,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:49:51,544 INFO L93 Difference]: Finished difference Result 106 states and 141 transitions. [2022-10-16 14:49:51,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:49:51,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 166 [2022-10-16 14:49:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:49:51,545 INFO L225 Difference]: With dead ends: 106 [2022-10-16 14:49:51,545 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 14:49:51,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:49:51,547 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 25 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:49:51,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 272 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:49:51,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 14:49:51,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 14:49:51,548 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 14:49:51,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 14:49:51,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2022-10-16 14:49:51,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:49:51,549 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 14:49:51,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 14:49:51,549 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 14:49:51,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 14:49:51,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-10-16 14:49:51,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-10-16 14:49:51,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-10-16 14:49:51,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-10-16 14:49:51,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:49:51,767 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 14:49:51,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 14:49:51,819 INFO L902 garLoopResultBuilder]: At program point L580-3(lines 580 582) the Hoare annotation is: true [2022-10-16 14:49:51,820 INFO L899 garLoopResultBuilder]: For program point L613-4(lines 613 617) no Hoare annotation was computed. [2022-10-16 14:49:51,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-10-16 14:49:51,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 14:49:51,821 INFO L902 garLoopResultBuilder]: At program point L598(line 598) the Hoare annotation is: true [2022-10-16 14:49:51,821 INFO L902 garLoopResultBuilder]: At program point L599(line 599) the Hoare annotation is: true [2022-10-16 14:49:51,821 INFO L899 garLoopResultBuilder]: For program point L583(lines 578 584) no Hoare annotation was computed. [2022-10-16 14:49:51,821 INFO L902 garLoopResultBuilder]: At program point L600(line 600) the Hoare annotation is: true [2022-10-16 14:49:51,822 INFO L899 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2022-10-16 14:49:51,822 INFO L899 garLoopResultBuilder]: For program point L551-2(line 551) no Hoare annotation was computed. [2022-10-16 14:49:51,822 INFO L899 garLoopResultBuilder]: For program point L551-3(line 551) no Hoare annotation was computed. [2022-10-16 14:49:51,822 INFO L899 garLoopResultBuilder]: For program point L551-5(line 551) no Hoare annotation was computed. [2022-10-16 14:49:51,822 INFO L899 garLoopResultBuilder]: For program point L551-6(line 551) no Hoare annotation was computed. [2022-10-16 14:49:51,823 INFO L899 garLoopResultBuilder]: For program point L551-8(line 551) no Hoare annotation was computed. [2022-10-16 14:49:51,824 INFO L899 garLoopResultBuilder]: For program point L551-9(lines 551 552) no Hoare annotation was computed. [2022-10-16 14:49:51,824 INFO L899 garLoopResultBuilder]: For program point L551-11(lines 551 552) no Hoare annotation was computed. [2022-10-16 14:49:51,824 INFO L899 garLoopResultBuilder]: For program point L551-12(lines 551 552) no Hoare annotation was computed. [2022-10-16 14:49:51,824 INFO L902 garLoopResultBuilder]: At program point L601(line 601) the Hoare annotation is: true [2022-10-16 14:49:51,824 INFO L899 garLoopResultBuilder]: For program point L551-14(lines 551 552) no Hoare annotation was computed. [2022-10-16 14:49:51,825 INFO L902 garLoopResultBuilder]: At program point L634-1(lines 573 643) the Hoare annotation is: true [2022-10-16 14:49:51,825 INFO L902 garLoopResultBuilder]: At program point L551-15(lines 550 553) the Hoare annotation is: true [2022-10-16 14:49:51,825 INFO L899 garLoopResultBuilder]: For program point L634-2(lines 634 638) no Hoare annotation was computed. [2022-10-16 14:49:51,825 INFO L902 garLoopResultBuilder]: At program point L585(line 585) the Hoare annotation is: true [2022-10-16 14:49:51,826 INFO L902 garLoopResultBuilder]: At program point L602(line 602) the Hoare annotation is: true [2022-10-16 14:49:51,826 INFO L902 garLoopResultBuilder]: At program point L586(line 586) the Hoare annotation is: true [2022-10-16 14:49:51,826 INFO L899 garLoopResultBuilder]: For program point L619-2(lines 619 623) no Hoare annotation was computed. [2022-10-16 14:49:51,826 INFO L899 garLoopResultBuilder]: For program point L619-3(line 619) no Hoare annotation was computed. [2022-10-16 14:49:51,826 INFO L899 garLoopResultBuilder]: For program point L619-4(line 619) no Hoare annotation was computed. [2022-10-16 14:49:51,827 INFO L895 garLoopResultBuilder]: At program point L619-5(lines 619 623) the Hoare annotation is: (or (<= 1 |ULTIMATE.start_main_~counter~0#1|) (= |ULTIMATE.start_main_~counter~0#1| 0)) [2022-10-16 14:49:51,827 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 14:49:51,827 INFO L902 garLoopResultBuilder]: At program point L587(line 587) the Hoare annotation is: true [2022-10-16 14:49:51,827 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 629) no Hoare annotation was computed. [2022-10-16 14:49:51,827 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 610) no Hoare annotation was computed. [2022-10-16 14:49:51,827 INFO L902 garLoopResultBuilder]: At program point L604-2(lines 603 610) the Hoare annotation is: true [2022-10-16 14:49:51,827 INFO L899 garLoopResultBuilder]: For program point L604-3(lines 604 610) no Hoare annotation was computed. [2022-10-16 14:49:51,828 INFO L902 garLoopResultBuilder]: At program point L588(line 588) the Hoare annotation is: true [2022-10-16 14:49:51,828 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-10-16 14:49:51,828 INFO L899 garLoopResultBuilder]: For program point L555-2(line 555) no Hoare annotation was computed. [2022-10-16 14:49:51,829 INFO L899 garLoopResultBuilder]: For program point L555-3(line 555) no Hoare annotation was computed. [2022-10-16 14:49:51,829 INFO L899 garLoopResultBuilder]: For program point L555-5(line 555) no Hoare annotation was computed. [2022-10-16 14:49:51,829 INFO L899 garLoopResultBuilder]: For program point L555-6(line 555) no Hoare annotation was computed. [2022-10-16 14:49:51,829 INFO L899 garLoopResultBuilder]: For program point L555-8(line 555) no Hoare annotation was computed. [2022-10-16 14:49:51,830 INFO L899 garLoopResultBuilder]: For program point L555-9(lines 555 556) no Hoare annotation was computed. [2022-10-16 14:49:51,830 INFO L899 garLoopResultBuilder]: For program point L555-11(lines 555 556) no Hoare annotation was computed. [2022-10-16 14:49:51,830 INFO L899 garLoopResultBuilder]: For program point L555-12(lines 555 556) no Hoare annotation was computed. [2022-10-16 14:49:51,830 INFO L899 garLoopResultBuilder]: For program point L555-14(lines 555 556) no Hoare annotation was computed. [2022-10-16 14:49:51,830 INFO L895 garLoopResultBuilder]: At program point L555-15(lines 554 557) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~counter~0#1|) [2022-10-16 14:49:51,831 INFO L902 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: true [2022-10-16 14:49:51,831 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 619) no Hoare annotation was computed. [2022-10-16 14:49:51,831 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 14:49:51,831 INFO L902 garLoopResultBuilder]: At program point L606-2(lines 606 608) the Hoare annotation is: true [2022-10-16 14:49:51,832 INFO L902 garLoopResultBuilder]: At program point L606-3(lines 606 608) the Hoare annotation is: true [2022-10-16 14:49:51,832 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 619) no Hoare annotation was computed. [2022-10-16 14:49:51,833 INFO L899 garLoopResultBuilder]: For program point L624(lines 624 628) no Hoare annotation was computed. [2022-10-16 14:49:51,833 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 597) no Hoare annotation was computed. [2022-10-16 14:49:51,833 INFO L895 garLoopResultBuilder]: At program point L624-2(lines 573 643) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~counter~0#1|) [2022-10-16 14:49:51,833 INFO L902 garLoopResultBuilder]: At program point L591-2(lines 590 597) the Hoare annotation is: true [2022-10-16 14:49:51,833 INFO L899 garLoopResultBuilder]: For program point L624-3(lines 624 628) no Hoare annotation was computed. [2022-10-16 14:49:51,834 INFO L902 garLoopResultBuilder]: At program point L591-3(lines 591 597) the Hoare annotation is: true [2022-10-16 14:49:51,834 INFO L902 garLoopResultBuilder]: At program point L642(lines 573 643) the Hoare annotation is: true [2022-10-16 14:49:51,834 INFO L899 garLoopResultBuilder]: For program point L609(lines 604 610) no Hoare annotation was computed. [2022-10-16 14:49:51,834 INFO L902 garLoopResultBuilder]: At program point L593-2(lines 593 595) the Hoare annotation is: true [2022-10-16 14:49:51,834 INFO L902 garLoopResultBuilder]: At program point L593-3(lines 593 595) the Hoare annotation is: true [2022-10-16 14:49:51,834 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 14:49:51,834 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 578 584) no Hoare annotation was computed. [2022-10-16 14:49:51,835 INFO L902 garLoopResultBuilder]: At program point L578-3(lines 578 584) the Hoare annotation is: true [2022-10-16 14:49:51,835 INFO L902 garLoopResultBuilder]: At program point L578-4(lines 578 584) the Hoare annotation is: true [2022-10-16 14:49:51,835 INFO L899 garLoopResultBuilder]: For program point L596(lines 591 597) no Hoare annotation was computed. [2022-10-16 14:49:51,835 INFO L899 garLoopResultBuilder]: For program point L629-2(lines 629 633) no Hoare annotation was computed. [2022-10-16 14:49:51,835 INFO L899 garLoopResultBuilder]: For program point L629-3(line 629) no Hoare annotation was computed. [2022-10-16 14:49:51,835 INFO L899 garLoopResultBuilder]: For program point L629-4(line 629) no Hoare annotation was computed. [2022-10-16 14:49:51,835 INFO L895 garLoopResultBuilder]: At program point L629-5(lines 629 633) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_main_~counter~0#1| 2147483648)) [2022-10-16 14:49:51,835 INFO L899 garLoopResultBuilder]: For program point L613-1(lines 613 617) no Hoare annotation was computed. [2022-10-16 14:49:51,836 INFO L902 garLoopResultBuilder]: At program point L580-2(lines 580 582) the Hoare annotation is: true [2022-10-16 14:49:51,836 INFO L902 garLoopResultBuilder]: At program point L613-3(lines 613 617) the Hoare annotation is: true [2022-10-16 14:49:51,837 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-10-16 14:49:51,838 INFO L899 garLoopResultBuilder]: For program point appendEXIT(lines 558 572) no Hoare annotation was computed. [2022-10-16 14:49:51,838 INFO L899 garLoopResultBuilder]: For program point L561-2(lines 561 567) no Hoare annotation was computed. [2022-10-16 14:49:51,838 INFO L899 garLoopResultBuilder]: For program point appendFINAL(lines 558 572) no Hoare annotation was computed. [2022-10-16 14:49:51,839 INFO L895 garLoopResultBuilder]: At program point appendENTRY(lines 558 572) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-10-16 14:49:51,843 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:49:51,845 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 14:49:51,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:49:51 BoogieIcfgContainer [2022-10-16 14:49:51,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 14:49:51,867 INFO L158 Benchmark]: Toolchain (without parser) took 20758.38ms. Allocated memory was 156.2MB in the beginning and 536.9MB in the end (delta: 380.6MB). Free memory was 130.3MB in the beginning and 395.0MB in the end (delta: -264.7MB). Peak memory consumption was 117.2MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,867 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 156.2MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 14:49:51,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 679.48ms. Allocated memory is still 156.2MB. Free memory was 130.2MB in the beginning and 112.0MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.90ms. Allocated memory is still 156.2MB. Free memory was 112.0MB in the beginning and 109.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,868 INFO L158 Benchmark]: Boogie Preprocessor took 52.45ms. Allocated memory is still 156.2MB. Free memory was 109.2MB in the beginning and 106.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,869 INFO L158 Benchmark]: RCFGBuilder took 863.41ms. Allocated memory is still 156.2MB. Free memory was 106.6MB in the beginning and 112.0MB in the end (delta: -5.4MB). Peak memory consumption was 3.9MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,869 INFO L158 Benchmark]: TraceAbstraction took 19082.69ms. Allocated memory was 156.2MB in the beginning and 536.9MB in the end (delta: 380.6MB). Free memory was 110.9MB in the beginning and 395.0MB in the end (delta: -284.1MB). Peak memory consumption was 97.6MB. Max. memory is 8.0GB. [2022-10-16 14:49:51,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 156.2MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 679.48ms. Allocated memory is still 156.2MB. Free memory was 130.2MB in the beginning and 112.0MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.90ms. Allocated memory is still 156.2MB. Free memory was 112.0MB in the beginning and 109.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.45ms. Allocated memory is still 156.2MB. Free memory was 109.2MB in the beginning and 106.6MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 863.41ms. Allocated memory is still 156.2MB. Free memory was 106.6MB in the beginning and 112.0MB in the end (delta: -5.4MB). Peak memory consumption was 3.9MB. Max. memory is 8.0GB. * TraceAbstraction took 19082.69ms. Allocated memory was 156.2MB in the beginning and 536.9MB in the end (delta: 380.6MB). Free memory was 110.9MB in the beginning and 395.0MB in the end (delta: -284.1MB). Peak memory consumption was 97.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 19.0s, OverallIterations: 13, TraceHistogramMax: 15, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 191 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 5221 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3881 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 600 IncrementalHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 1340 mSDtfsCounter, 600 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1501 GetRequests, 1413 SyntacticMatches, 3 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=12, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 41 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 59 PreInvPairs, 96 NumberOfFragments, 59 HoareAnnotationTreeSize, 59 FomulaSimplifications, 106 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 30 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 2522 NumberOfCodeBlocks, 2402 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2797 ConstructedInterpolants, 0 QuantifiedInterpolants, 5896 SizeOfPredicates, 8 NumberOfNonLiveVariables, 8004 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 20 InterpolantComputations, 11 PerfectInterpolantSequences, 10641/10701 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 619]: Loop Invariant Derived loop invariant: 1 <= counter || counter == 0 - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: 1 <= counter - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 <= counter - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: 0 <= counter + 2147483648 - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 590]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-16 14:49:51,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...